using a better semantic to test false results

ruby-minitest offers "refuse" as a syntatic sugar to "assert not"

using a better semantic to test false results
ruby-minitest offers "refuse" as a syntatic sugar to "assert not"
Joenio Costa
1 parent f6dc326c
Showing 152 changed files with 746 additions and 746 deletions Show diff stats
plugins/breadcrumbs/test/functional/profile_design_controller_test.rb
plugins/breadcrumbs/test/unit/breadcrumbs_plugin_test.rb
plugins/breadcrumbs/test/unit/content_breadcrumbs_block_test.rb
plugins/bsc/test/functional/bsc_plugin_admin_controller_test.rb
plugins/bsc/test/unit/bsc_plugin/bsc_test.rb
plugins/bsc/test/unit/bsc_plugin/contract_test.rb
plugins/bsc/test/unit/bsc_plugin/sale_test.rb
plugins/comment_group/test/unit/article_test.rb
plugins/comment_group/test/unit/comment_group_plugin_test.rb
plugins/community_track/test/functional/community_track_plugin_public_controller_test.rb
plugins/community_track/test/unit/article_test.rb
plugins/community_track/test/unit/community_track_plugin/step_test.rb
plugins/community_track/test/unit/community_track_plugin/track_list_block_test.rb
plugins/community_track/test/unit/community_track_plugin_test.rb
plugins/container_block/test/unit/container_block_plugin/container_block_test.rb
plugins/container_block/test/unit/container_block_plugin_test.rb
plugins/context_content/test/functional/profile_design_controller_test.rb
plugins/context_content/test/unit/context_content_block_test.rb
plugins/custom_forms/test/functional/custom_forms_plugin_myprofile_controller_test.rb
plugins/custom_forms/test/functional/custom_forms_plugin_profile_controller_test.rb
@@ -37,8 +37,8 @@ class ProfileDesignControllerTest &lt; ActionController::TestCase
     post :save, :id => @block.id, :profile => @profile.identifier, :block => {:title => 'breadcrumbs', :show_cms_action => false, :show_profile => false}
     @block.reload
     assert_equal 'breadcrumbs', @block.title
-    assert !@block.show_profile
-    assert !@block.show_cms_action
+    refute @block.show_profile
+    refute @block.show_cms_action
   end
   should 'be able save breadcrumbs block with show_section_name option' do
@@ -7,11 +7,11 @@ class BreadcrumbsPluginTest &lt; ActiveSupport::TestCase
   end
   should 'has a name' do
-    assert !BreadcrumbsPlugin.plugin_name.blank?
+    refute BreadcrumbsPlugin.plugin_name.blank?
   end
   should 'has a description' do
-    assert !BreadcrumbsPlugin.plugin_description.blank?
+    refute BreadcrumbsPlugin.plugin_description.blank?
   end
   should 'add a block' do
@@ -69,7 +69,7 @@ class ContentBreadcrumbsBlockTest &lt; ActiveSupport::TestCase
   end
   should 'not be cacheable' do
-    assert !@block.cacheable?
+    refute @block.cacheable?
   end
 end
@@ -76,6 +76,6 @@ class BscPluginAdminControllerTest &lt; ActionController::TestCase
     assert e1.validated
     assert e2.validated
-    assert !e3.validated
+    refute e3.validated
   end
 end
@@ -41,7 +41,7 @@ class BscPlugin::BscTest &lt; ActiveSupport::TestCase
     bsc.enterprise_requests.stubs(:pending).returns([task])
     assert bsc.already_requested?(e1)
-    assert !bsc.already_requested?(e2)
+    refute bsc.already_requested?(e2)
   end
   should 'return associated enterprises products' do
@@ -68,7 +68,7 @@ class BscPlugin::BscTest &lt; ActiveSupport::TestCase
   end
   should 'not be able to create product' do
-    assert !bsc.create_product?
+    refute bsc.create_product?
   end
   should 'have many contracts' do
@@ -14,7 +14,7 @@ class BscPlugin::ContractTest &lt; ActiveSupport::TestCase
     contract.bsc = BscPlugin::Bsc.new
     contract.valid?
-    assert !contract.errors.invalid?(:bsc)
+    refute contract.errors.invalid?(:bsc)
   end
   should 'associate contract with products through sales' do
@@ -18,8 +18,8 @@ class BscPlugin::SaleTest &lt; ActiveSupport::TestCase
     sale.product = product
     sale.contract = contract
-    assert !sale.errors.invalid?(product)
-    assert !sale.errors.invalid?(contract)
+    refute sale.errors.invalid?(product)
+    refute sale.errors.invalid?(contract)
   end
   should 'validate uniqueness of product and contract composed' do
@@ -43,7 +43,7 @@ class BscPlugin::SaleTest &lt; ActiveSupport::TestCase
     sale.quantity = 3
     sale.valid?
-    assert !sale.errors.invalid?(:quantity)
+    refute sale.errors.invalid?(:quantity)
   end
   should 'set default price as product price if no price indicated' do
@@ -19,7 +19,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
   should 'do not allow a exclusion of a group comment macro if this group has comments' do
     article.body = "<div class=\"macro\" data-macro-group_id=2></div>"
     comment1 = fast_create(Comment, :group_id => 1, :source_id => article.id)
-    assert !article.save
+    refute article.save
     assert_equal ['Not empty group comment cannot be removed'], article.errors[:base]
   end
@@ -18,7 +18,7 @@ class CommentGroupPluginTest &lt; ActiveSupport::TestCase
   end
   should 'have a js file' do
-    assert !plugin.js_files.blank?
+    refute plugin.js_files.blank?
   end
   should 'have stylesheet' do
@@ -52,7 +52,7 @@ class CommunityTrackPluginPublicControllerTest &lt; ActionController::TestCase
   should 'do not show more link in all tracks if there is no more tracks to show' do
     CommunityTrackPlugin::Track.destroy_all
     get :all_tracks, :id => @block.id
-    assert !assigns['show_more']
+    refute assigns['show_more']
     assert_no_match /track_list_more_#{@block.id}/, @response.body
   end
@@ -18,7 +18,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
   should 'do nothing if parent is not a step' do
     folder = fast_create(Folder, :profile_id => @profile.id)
     article = Article.create!(:parent => folder, :profile => @profile, :accept_comments => false, :name => "article")
-    assert !article.accept_comments
+    refute article.accept_comments
   end
 end
@@ -24,20 +24,20 @@ class StepTest &lt; ActiveSupport::TestCase
   should 'set accept_comments to false on create' do
     today = Date.today
     step = CommunityTrackPlugin::Step.create(:name => 'Step', :body => 'body', :profile => @profile, :parent => @track, :start_date => today, :end_date => today, :published => true)
-    assert !step.accept_comments
+    refute step.accept_comments
   end
   should 'do not allow step creation with a parent that is not a track' do
     today = Date.today
     blog = fast_create(Blog)
     step = CommunityTrackPlugin::Step.new(:name => 'Step', :body => 'body', :profile => @profile, :parent => blog, :start_date => today, :end_date => today, :published => true)
-    assert !step.save
+    refute step.save
   end
   should 'do not allow step creation without a parent' do
     today = Date.today
     step = CommunityTrackPlugin::Step.new(:name => 'Step', :body => 'body', :profile => @profile, :parent => nil, :start_date => today, :end_date => today, :published => true)
-    assert !step.save
+    refute step.save
   end
   should 'create step if end date is equal to start date' do
@@ -55,7 +55,7 @@ class StepTest &lt; ActiveSupport::TestCase
   should 'do not create step if end date is before start date' do
     @step.start_date = Date.today
     @step.end_date = Date.today - 1.day
-    assert !@step.save
+    refute @step.save
   end
   should 'do not validate date period if start date is nil' do
@@ -146,7 +146,7 @@ class StepTest &lt; ActiveSupport::TestCase
   end
   should 'set position on save' do
-    assert !@step.position
+    refute @step.position
     @step.save!
     assert_equal 1, @step.position
     step2 = CommunityTrackPlugin::Step.new(:name => 'Step2', :body => 'body', :profile => @profile, :parent => @track, :published => false, :end_date => Date.today, :start_date => Date.today)
@@ -157,7 +157,7 @@ class StepTest &lt; ActiveSupport::TestCase
   should 'accept comments if step is active' do
     @step.start_date = Date.today
     @step.save!
-    assert !@step.accept_comments
+    refute @step.accept_comments
     @step.toggle_activation
     @step.reload
     assert @step.accept_comments
@@ -167,10 +167,10 @@ class StepTest &lt; ActiveSupport::TestCase
     @step.start_date = Date.today + 2.days
     @step.end_date = Date.today + 3.days
     @step.save!
-    assert !@step.published
+    refute @step.published
     @step.toggle_activation
     @step.reload
-    assert !@step.published
+    refute @step.published
   end
   should 'do not accept comments if step is not active anymore' do
@@ -185,7 +185,7 @@ class StepTest &lt; ActiveSupport::TestCase
     @step.save!
     @step.toggle_activation
     @step.reload
-    assert !@step.accept_comments
+    refute @step.accept_comments
   end
   should 'set position to zero if step is hidden' do
@@ -228,10 +228,10 @@ class StepTest &lt; ActiveSupport::TestCase
     @step.start_date = Date.today
     @step.hidden = true
     @step.save!
-    assert !@step.published
+    refute @step.published
     @step.toggle_activation
     @step.reload
-    assert !@step.published
+    refute @step.published
   end
   should 'return enabled tools for a step' do
@@ -268,9 +268,9 @@ class StepTest &lt; ActiveSupport::TestCase
   should 'enable comments on children when step is activated' do
     @step.start_date = Date.today
     @step.save!
-    assert !@step.accept_comments
+    refute @step.accept_comments
     article = fast_create(Article, :parent_id => @step.id, :profile_id => @step.profile.id, :accept_comments => false)
-    assert !article.accept_comments
+    refute article.accept_comments
     @step.toggle_activation
     assert article.reload.accept_comments
   end
@@ -279,7 +279,7 @@ class StepTest &lt; ActiveSupport::TestCase
     @step.start_date = Date.today
     @step.start_date = Date.today
     @step.save!
-    assert !@step.accept_comments
+    refute @step.accept_comments
     @step.toggle_activation
     article = Article.create!(:parent => @step, :profile => @step.profile, :accept_comments => false, :name => "article")
     assert article.reload.accept_comments
@@ -20,7 +20,7 @@ class TrackListBlockTest &lt; ActiveSupport::TestCase
   end
   should 'load more at another page default to false' do
-    assert !@block.more_another_page
+    refute @block.more_another_page
   end
   should 'list articles only of track type' do
@@ -41,7 +41,7 @@ class TrackListBlockTest &lt; ActiveSupport::TestCase
   should 'do not return more link if there is no more tracks to show' do
     (@block.limit-1).times { |i| create_track("track#{i}", profile) }
-    assert !@block.footer
+    refute @block.footer
   end
   should 'count all tracks' do
@@ -58,7 +58,7 @@ class TrackListBlockTest &lt; ActiveSupport::TestCase
     @block.owner.articles.destroy_all
     (@block.limit+1).times { |i| create_track("track#{i}", profile) }
     assert @block.has_page?(2)
-    assert !@block.has_page?(3)
+    refute @block.has_page?(3)
   end
   should 'filter tracks by category' do
@@ -95,8 +95,8 @@ class TrackListBlockTest &lt; ActiveSupport::TestCase
   should 'define expiration condition' do
     condition = CommunityTrackPlugin::TrackListBlock.expire_on
-    assert !condition[:profile].empty?
-    assert !condition[:environment].empty?
+    refute condition[:profile].empty?
+    refute condition[:environment].empty?
   end
   should 'return track list block categories' do
@@ -74,8 +74,8 @@ class CommunityTrackPluginTest &lt; ActiveSupport::TestCase
   end
   should 'return false at content_remove_new if page is not a track' do
-    assert !@plugin.content_remove_new(CommunityTrackPlugin::Step.new)
-    assert !@plugin.content_remove_new(Article.new)
+    refute @plugin.content_remove_new(CommunityTrackPlugin::Step.new)
+    refute @plugin.content_remove_new(Article.new)
   end
 end
@@ -8,11 +8,11 @@ class ContainerBlockPlugin::ContainerBlockTest &lt; ActiveSupport::TestCase
   end
   should 'describe yourself' do
-    assert !ContainerBlockPlugin::ContainerBlock.description.blank?
+    refute ContainerBlockPlugin::ContainerBlock.description.blank?
   end
   should 'has a help' do
-    assert !@block.help.blank?
+    refute @block.help.blank?
   end
   should 'create a box on save' do
@@ -84,7 +84,7 @@ class ContainerBlockPlugin::ContainerBlockTest &lt; ActiveSupport::TestCase
     @block.save!
     child = Block.create!(:box_id => @block.container_box.id)
     @block.destroy
-    assert !Block.exists?(child.id)
+    refute Block.exists?(child.id)
   end
   should 'destroy box when container is removed' do
@@ -7,11 +7,11 @@ class ContainerBlockPluginTest &lt; ActiveSupport::TestCase
   end
   should 'has a name' do
-    assert !ContainerBlockPlugin.plugin_name.blank?
+    refute ContainerBlockPlugin.plugin_name.blank?
   end
   should 'has a description' do
-    assert !ContainerBlockPlugin.plugin_description.blank?
+    refute ContainerBlockPlugin.plugin_description.blank?
   end
   should 'add a block' do
@@ -47,7 +47,7 @@ class ProfileDesignControllerTest &lt; ActionController::TestCase
     post :save, :id => @block.id, :block => {:title => 'context', :show_image => '0', :show_name => '0', :show_parent_content => '0', :types => ['TinyMceArticle', '', nil, 'Folder'] }, :profile => @profile.identifier
     @block.reload
     assert_equal 'context', @block.title
-    assert !@block.show_image && !@block.show_name && !@block.show_parent_content
+    refute @block.show_image && !@block.show_name && !@block.show_parent_content
     assert_equal ['TinyMceArticle', 'Folder'], @block.types
   end
@@ -175,7 +175,7 @@ class ContextContentBlockTest &lt; ActiveSupport::TestCase
   end
   should 'not be cacheable' do
-    assert !@block.cacheable?
+    refute @block.cacheable?
   end
 end
@@ -34,7 +34,7 @@ class CustomFormsPluginMyprofileControllerTest &lt; ActionController::TestCase
     form = CustomFormsPlugin::Form.create!(:profile => profile, :name => 'Free Software')
     assert CustomFormsPlugin::Form.exists?(form.id)
     post :remove, :profile => profile.identifier, :id => form.id
-    assert !CustomFormsPlugin::Form.exists?(form.id)
+    refute CustomFormsPlugin::Form.exists?(form.id)
   end
   should 'create a form' do
@@ -25,7 +25,7 @@ class CustomFormsPluginProfileControllerTest &lt; ActionController::TestCase
     assert_difference 'CustomFormsPlugin::Submission.count', 1 do
       post :show, :profile => profile.identifier, :id => form.id, :submission => {field1.id.to_s => 'Noosfero', field2.id.to_s => 'GPL'}
     end
-    assert !session[:notice].include?('not saved')
+    refute session[:notice].include?('not saved')
     assert_redirected_to :action => 'show'
   end
@@ -10,7 +10,7 @@ class CustomFormsPlugin::AnswerTest &lt; ActiveSupport::TestCase
     field = CustomFormsPlugin::Field.create!(:name => 'License', :form => form)
     answer.field = field
     answer.valid?
-    assert !answer.errors.include?(:field)
+    refute answer.errors.include?(:field)
   end
   should 'belong to a submission' do
@@ -31,7 +31,7 @@ class CustomFormsPlugin::AnswerTest &lt; ActiveSupport::TestCase
     answer.value = "GPL"
     answer.valid?
-    assert !answer.errors.include?(:value)
+    refute answer.errors.include?(:value)
   end
   should 'make string representation show answers' do
@@ -9,7 +9,7 @@ class CustomFormsPlugin::FieldTest &lt; ActiveSupport::TestCase
   should 'set mandatory field as false by default' do
     field = CustomFormsPlugin::Field.new
-    assert !field.mandatory
+    refute field.mandatory
   end
   should 'have answers' do
@@ -47,7 +47,7 @@ class CustomFormsPlugin::FieldTest &lt; ActiveSupport::TestCase
   should 'have alternative if type is SelectField' do
     select = CustomFormsPlugin::Field.new(:name => 'select_field001', :type => 'CustomFormsPlugin::SelectField')
-    assert !select.save
+    refute select.save
     select.alternatives << CustomFormsPlugin::Alternative.new(:label => 'option')
     assert select.save
@@ -10,8 +10,8 @@ class CustomFormsPlugin::FormTest &lt; ActiveSupport::TestCase
     form.profile = fast_create(Profile)
     form.name = 'Free Software'
     form.valid?
-    assert !form.errors.include?(:profile)
-    assert !form.errors.include?(:name)
+    refute form.errors.include?(:profile)
+    refute form.errors.include?(:name)
   end
   should 'have many fields including fields subclasses' do
@@ -50,7 +50,7 @@ class CustomFormsPlugin::FormTest &lt; ActiveSupport::TestCase
     form.profile = another_profile
     form.valid?
-    assert !form.errors.include?(:slug)
+    refute form.errors.include?(:slug)
   end
   should 'validate the difference between ending and beginning is positive' do
@@ -60,55 +60,55 @@ class CustomFormsPlugin::FormTest &lt; ActiveSupport::TestCase
     form.begining = Time.now
     form.ending = Time.now + 1.day
     assert form.valid?
-    assert !form.errors.include?(:base)
+    refute form.errors.include?(:base)
     form.ending = Time.now - 2.day
-    assert !form.valid?
+    refute form.valid?
     assert form.errors.include?(:base)
   end
   should 'define form expiration' do
     form = CustomFormsPlugin::Form.new
-    assert !form.expired?
+    refute form.expired?
     form.begining = Time.now + 1.day
     assert form.expired?
     form.begining = Time.now - 1.day
-    assert !form.expired?
+    refute form.expired?
     form.begining = nil
     form.ending = Time.now + 1.day
-    assert !form.expired?
+    refute form.expired?
     form.ending = Time.now - 1.day
     assert form.expired?
     form.begining = Time.now - 1.day
     form.ending = Time.now + 1.day
-    assert !form.expired?
+    refute form.expired?
   end
   should 'define if form will still open' do
     form = CustomFormsPlugin::Form.new
-    assert !form.will_open?
+    refute form.will_open?
     form.begining = Time.now + 1.day
     assert form.will_open?
     form.begining = Time.now - 1.day
-    assert !form.will_open?
+    refute form.will_open?
     form.begining = Time.now - 2.day
     form.ending = Time.now - 1.day
     assert form.expired?
-    assert !form.will_open?
+    refute form.will_open?
   end
   should 'validates format of access' do
     form = CustomFormsPlugin::Form.new
     form.valid?
-    assert !form.errors.include?(:access)
+    refute form.errors.include?(:access)
     form.access = 'bli'
     form.valid?
@@ -116,11 +116,11 @@ class CustomFormsPlugin::FormTest &lt; ActiveSupport::TestCase
     form.access = 'logged'
     form.valid?
-    assert !form.errors.include?(:access)
+    refute form.errors.include?(:access)
     form.access = 'associated'
     form.valid?
-    assert !form.errors.include?(:access)
+    refute form.errors.include?(:access)
     form.access = {:bli => 1}
     form.valid?
@@ -133,13 +133,13 @@ class CustomFormsPlugin::FormTest &lt; ActiveSupport::TestCase
     p1 = fast_create(Profile)
     form.access = p1.id
     form.valid?
-    assert !form.errors.include?(:access)
+    refute form.errors.include?(:access)
     p2 = fast_create(Profile)
     p3 = fast_create(Profile)
     form.access = [p1,p2,p3].map(&:id)
     form.valid?
-    assert !form.errors.include?(:access)
+    refute form.errors.include?(:access)
   end
   should 'defines who is able to access the form' do
@@ -148,25 +148,25 @@ class CustomFormsPlugin::FormTest &lt; ActiveSupport::TestCase
     assert form.accessible_to(nil)
     form.access = 'logged'
-    assert !form.accessible_to(nil)
+    refute form.accessible_to(nil)
     person = fast_create(Person)
     assert form.accessible_to(person)
     form.access = 'associated'
-    assert !form.accessible_to(person)
+    refute form.accessible_to(person)
     owner.add_member(person)
     assert form.accessible_to(person)
     p1 = fast_create(Profile)
     form.access = p1.id
-    assert !form.accessible_to(person)
+    refute form.accessible_to(person)
     assert form.accessible_to(p1)
     p2 = fast_create(Profile)
     form.access = [person.id, p1.id]
     assert form.accessible_to(person)
     assert form.accessible_to(p1)
-    assert !form.accessible_to(p2)
+    refute form.accessible_to(p2)
     form.access << p2.id
     assert form.accessible_to(p2)
@@ -8,7 +8,7 @@ class CustomFormsPlugin::MembershipSurveyTest &lt; ActiveSupport::TestCase
     task.form_id = 1
     task.valid?
-    assert !task.errors.include?(:form_id)
+    refute task.errors.include?(:form_id)
   end
   should 'create submission with answers on perform' do
@@ -3,7 +3,7 @@ require File.dirname(__FILE__) + &#39;/../../../../../test/test_helper&#39;
 class CustomFormsPlugin::SelectFieldTest < ActiveSupport::TestCase
   should 'have alternative' do
     select = CustomFormsPlugin::SelectField.new(:name => 'select_field001' )
-    assert !select.save
+    refute select.save
     select.alternatives << CustomFormsPlugin::Alternative.new(:label => 'option')
     assert select.save
@@ -14,7 +14,7 @@ class CustomFormsPlugin::SubmissionTest &lt; ActiveSupport::TestCase
     form = CustomFormsPlugin::Form.create!(:name => 'Free Software', :profile => profile)
     submission.form = form
     submission.valid?
-    assert !submission.errors.include?(:form)
+    refute submission.errors.include?(:form)
   end
   should 'belong to a profile' do
@@ -32,8 +32,8 @@ class CustomFormsPlugin::SubmissionTest &lt; ActiveSupport::TestCase
     submission.author_name = 'Jack Sparrow'
     submission.author_email = 'jack@black-pearl.com'
     submission.valid?
-    assert !submission.errors.include?(:author_name)
-    assert !submission.errors.include?(:author_email)
+    refute submission.errors.include?(:author_name)
+    refute submission.errors.include?(:author_email)
   end
   should 'have answers' do
@@ -67,6 +67,6 @@ class RoleAssignmentsTest &lt; ActiveSupport::TestCase
     assert_difference 'CustomFormsPlugin::AdmissionSurvey.count', 2 do
       organization.add_member(person)
     end
-    assert !organization.members.include?(person)
+    refute organization.members.include?(person)
   end
 end
@@ -169,11 +169,11 @@ class EventBlockTest &lt; ActiveSupport::TestCase
     @block.all_env_events = true
     # Do not list event from private profile for non logged visitor
-    assert ! @block.events.include?(ev)
+    refute  @block.events.include?(ev)
     assert_equal 4, @block.events.length
     # Do not list event from private profile for non unprivileged user
-    assert ! @block.events.include?(ev)
+    refute  @block.events.include?(ev)
     assert_equal 4, @block.events(@p1).length
     # Must to list event from private profile for a friend
@@ -8,7 +8,7 @@ class AcademicInfoTest &lt; ActiveSupport::TestCase
   should 'not ve invalid lattes url' do
     @academic_info.lattes_url = "http://softwarelivre.org/"
-    assert !@academic_info.save
+    refute @academic_info.save
   end
   should 'accept blank lattes url' do
@@ -130,7 +130,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
   should 'ldap_plugin_onthefly_register return false if ldap onthefly_register variable is defined as false' do
     value = '0'
     @enviroment.ldap_plugin_onthefly_register= value
-    assert !@enviroment.ldap_plugin_onthefly_register
+    refute @enviroment.ldap_plugin_onthefly_register
   end
   should 'ldap_plugin_filter= define the ldap filter' do
@@ -160,7 +160,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
   should 'tls return false if ldap tls variable is defined as false' do
     value = '0'
     @enviroment.ldap_plugin_tls= value
-    assert !@enviroment.ldap_plugin_tls
+    refute @enviroment.ldap_plugin_tls
   end
   should 'validates presence of host' do
@@ -171,12 +171,12 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     @enviroment.ldap_plugin_host= "http://somehost.com"
     @enviroment.valid?
-    assert !@enviroment.errors.include?(:ldap_plugin_host)
+    refute @enviroment.errors.include?(:ldap_plugin_host)
   end
   should 'validates presence of host only if some ldap configuration is defined' do
     @enviroment.valid?
-    assert !@enviroment.errors.include?(:ldap_plugin_host)
+    refute @enviroment.errors.include?(:ldap_plugin_host)
     @enviroment.ldap_plugin= {:port => 3000}
     @enviroment.valid?
@@ -96,7 +96,7 @@ class LdapAuthenticationTest &lt; ActiveSupport::TestCase
   should "onthefly_register be false as default" do
     ldap = LdapAuthentication.new
-    assert !ldap.onthefly_register
+    refute ldap.onthefly_register
   end
   should "create with onthefly_register passed as parameter" do
@@ -118,7 +118,7 @@ class LdapAuthenticationTest &lt; ActiveSupport::TestCase
   should "tls be false as default" do
     ldap = LdapAuthentication.new
-    assert !ldap.tls
+    refute ldap.tls
   end
   should "create with tls passed as parameter" do
@@ -134,7 +134,7 @@ class LdapAuthenticationTest &lt; ActiveSupport::TestCase
   should "onthefly_register? return false if onthefly_register is false" do
     ldap = LdapAuthentication.new('onthefly_register' => false)
-    assert !ldap.onthefly_register?
+    refute ldap.onthefly_register?
   end
   if ldap_configured?
@@ -4,12 +4,12 @@ class LdapPluginTest &lt; ActiveSupport::TestCase
   should "not allow user registration" do
     plugin = LdapPlugin.new
-    assert !plugin.allow_user_registration
+    refute plugin.allow_user_registration
   end
   should "not allow password recovery" do
     plugin = LdapPlugin.new
-    assert !plugin.allow_password_recovery
+    refute plugin.allow_password_recovery
   end
 end
@@ -9,7 +9,7 @@ class MarkCommentAsReadPlugin::CommentTest &lt; ActiveSupport::TestCase
   end
   should 'mark comment as read' do
-    assert !@comment.marked_as_read?(@person)
+    refute @comment.marked_as_read?(@person)
     @comment.mark_as_read(@person)
     assert @comment.marked_as_read?(@person)
   end
@@ -25,7 +25,7 @@ class MarkCommentAsReadPlugin::CommentTest &lt; ActiveSupport::TestCase
     @comment.mark_as_read(@person)
     assert @comment.marked_as_read?(@person)
     @comment.mark_as_not_read(@person)
-    assert !@comment.marked_as_read?(@person)
+    refute @comment.marked_as_read?(@person)
   end
   should 'return comments marked as read for a user' do
@@ -26,7 +26,7 @@ class MarkCommentAsReadPluginTest &lt; ActiveSupport::TestCase
     self.stubs(:user).returns(nil)
     action = @plugin.comment_actions(@comment)
     link = self.instance_eval(&action)
-    assert !link
+    refute link
   end
   should 'return actions when comment is not read' do
@@ -46,7 +46,7 @@ class MarkCommentAsReadPluginTest &lt; ActiveSupport::TestCase
     self.stubs(:user).returns(nil)
     action = @plugin.check_comment_actions(@comment)
     id = self.instance_eval(&action)
-    assert !id
+    refute id
   end
   should 'return id of mark as not read link when comment is read' do
@@ -70,14 +70,14 @@ class MarkCommentAsReadPluginTest &lt; ActiveSupport::TestCase
   should 'do not return extra content if comment is not marked as read' do
     content = @plugin.article_extra_contents(@article)
-    assert !self.instance_eval(&content)
+    refute self.instance_eval(&content)
   end
   should 'do not return extra content if user is not logged in' do
     @comment.mark_as_read(@person)
     self.stubs(:user).returns(nil)
     content = @plugin.article_extra_contents(@article)
-    assert !self.instance_eval(&content)
+    refute self.instance_eval(&content)
   end
   def link_to_function(content, url, options = {})
@@ -24,12 +24,12 @@ class UserTest &lt; ActiveSupport::TestCase
   should 'not activate user when created without oauth' do
     user = fast_create(User)
-    assert !user.activated?
+    refute user.activated?
   end
   should 'not make activation code when created with oauth' do
     user = User.create!(:email => 'testoauth@example.com', :login => 'testoauth', :oauth_providers => [provider])
-    assert !user.activation_code
+    refute user.activation_code
   end
   should 'make activation code when created without oauth' do
@@ -15,7 +15,7 @@ class PeopleBlockPluginTest &lt; ActiveSupport::TestCase
   end
   should "return false for class method has_admin_url?" do
-    assert !PeopleBlockPlugin.has_admin_url?
+    refute PeopleBlockPlugin.has_admin_url?
   end
   should "return false for class method stylesheet?" do
@@ -15,7 +15,7 @@ class RecentContentBlockTest &lt; ActiveSupport::TestCase
   should 'blog_picture be false by default' do
     block = RecentContentBlock.new
-    assert !block.show_blog_picture
+    refute block.show_blog_picture
   end
   should 'blog_picture is being stored and restored from database as true' do
@@ -33,7 +33,7 @@ class RecentContentBlockTest &lt; ActiveSupport::TestCase
     block.save
     block.reload
-    assert !block.show_blog_picture
+    refute block.show_blog_picture
   end
   should 'root be nil for new blocks' do
@@ -19,7 +19,7 @@ class RequireAuthToCommentPluginTest &lt; ActiveSupport::TestCase
   should 'allow comments from authenticated users' do
     plugin.context = logged_in(true)
     plugin.filter_comment(comment)
-    assert !comment.rejected?
+    refute comment.rejected?
   end
   should 'allow comments from unauthenticated users if allowed by profile' do
@@ -27,7 +27,7 @@ class RequireAuthToCommentPluginTest &lt; ActiveSupport::TestCase
     plugin.context.profile.allow_unauthenticated_comments = true
     plugin.filter_comment(comment)
-    assert !comment.rejected?
+    refute comment.rejected?
   end
   should 'the default require type setting be hide_button' do
@@ -38,7 +38,7 @@ class RequireAuthToCommentPluginTest &lt; ActiveSupport::TestCase
     context = mock();
     context.expects(:environment).returns(environment)
     plugin.expects(:context).returns(context)
-    assert !plugin.display_login_popup?
+    refute plugin.display_login_popup?
   end
   should 'display_login_popup? be true if require_type is defined as display_login_popup' do
@@ -51,7 +51,7 @@ class RequireAuthToCommentPluginTest &lt; ActiveSupport::TestCase
   should 'not display stylesheet if login popup is active' do
     plugin.expects(:display_login_popup?).returns(true)
-    assert !plugin.stylesheet?
+    refute plugin.stylesheet?
   end
   should 'display stylesheet if login popup is inactive' do
@@ -14,17 +14,17 @@ class SendEmailPluginMailTest &lt; ActiveSupport::TestCase
   should 'requires to field' do
     mail = SendEmailPlugin::Mail.new(:subject => 'Hi', :message => 'Hi john', :environment => @environment)
-    assert !mail.valid?
+    refute mail.valid?
   end
   should 'require message field' do
     mail = SendEmailPlugin::Mail.new(:subject => 'Hi', :to => 'john@example.com', :environment => @environment)
-    assert !mail.valid?
+    refute mail.valid?
   end
   should 'require environment field' do
     mail = SendEmailPlugin::Mail.new(:subject => 'Hi', :to => 'john@example.com', :message => 'Hi john')
-    assert !mail.valid?
+    refute mail.valid?
   end
   should 'have a default subject' do
@@ -34,18 +34,18 @@ class SendEmailPluginMailTest &lt; ActiveSupport::TestCase
   should 'not accept invalid email address' do
     mail = SendEmailPlugin::Mail.new(:subject => 'Hi', :message => 'Hi john', :to => 'invalid-mail-address', :environment => @environment)
-    assert !mail.valid?
+    refute mail.valid?
   end
   should 'not accept email that is not in allowed address list' do
     mail = SendEmailPlugin::Mail.new(:subject => 'Hi', :message => 'Hi john', :to => 'unknow@example.com', :environment => @environment)
-    assert !mail.valid?
+    refute mail.valid?
   end
   should 'discard some keys on set params hash' do
     mail = SendEmailPlugin::Mail.new(:params => {:action => 1, :controller => 2, :to => 3, :message => 4, :subject => 5, :age => 6})
     [:params].each do |k|
-      assert !mail.params.include?(k)
+      refute mail.params.include?(k)
     end
     assert mail.params.include?(:age)
   end
@@ -57,7 +57,7 @@ class SendEmailPluginMailTest &lt; ActiveSupport::TestCase
   should "invalid if just one listed in 'to' list was not allowed" do
     mail = SendEmailPlugin::Mail.new(:subject => 'Hi', :message => 'Hi john', :to => 'john@example.com,notallowed@example.com,someother@example.com', :environment => @environment)
-    assert !mail.valid?
+    refute mail.valid?
   end
 end
@@ -40,8 +40,8 @@ class ShoppingCartPluginControllerTest &lt; ActionController::TestCase
   should 'not add product to cart if it does not exists' do
     assert_nothing_raised { get :add, :id => 9999 }
-    assert !product_in_cart?(product)
-    assert !response_ok?
+    refute product_in_cart?(product)
+    refute response_ok?
     assert_equal 3, reponse_error_code
   end
@@ -50,15 +50,15 @@ class ShoppingCartPluginControllerTest &lt; ActionController::TestCase
     assert cart?
     get :remove, :id => product.id
-    assert !cart?
+    refute cart?
   end
   should 'not try to remove a product if there is no cart' do
     instantiate_cart
-    assert !cart?
+    refute cart?
     assert_nothing_raised { get :remove, :id => 9999 }
-    assert !response_ok?
+    refute response_ok?
     assert_equal 2, reponse_error_code
   end
@@ -69,7 +69,7 @@ class ShoppingCartPluginControllerTest &lt; ActionController::TestCase
     get :remove, :id => product.id
     assert cart?
-    assert !product_in_cart?(product)
+    refute product_in_cart?(product)
   end
   should 'not try to remove a product that is not in the cart' do
@@ -77,16 +77,16 @@ class ShoppingCartPluginControllerTest &lt; ActionController::TestCase
     assert cart?
     assert_nothing_raised { get :remove, :id => 9999 }
-    assert !response_ok?
+    refute response_ok?
     assert_equal 4, reponse_error_code
   end
   should 'not try to list the cart if there is no cart' do
     instantiate_cart
-    assert !cart?
+    refute cart?
     assert_nothing_raised { get :list  }
-    assert !response_ok?
+    refute response_ok?
     assert_equal 2, reponse_error_code
   end
@@ -107,10 +107,10 @@ class ShoppingCartPluginControllerTest &lt; ActionController::TestCase
   should 'not try to update quantity the quantity of a product if there is no cart' do
     instantiate_cart
-    assert !cart?
+    refute cart?
     assert_nothing_raised { get :update_quantity, :id => 9999, :quantity => 3 }
-    assert !response_ok?
+    refute response_ok?
     assert_equal 2, reponse_error_code
   end
@@ -119,7 +119,7 @@ class ShoppingCartPluginControllerTest &lt; ActionController::TestCase
     assert cart?
     assert_nothing_raised { get :update_quantity, :id => 9999, :quantity => 3 }
-    assert !response_ok?
+    refute response_ok?
     assert_equal 4, reponse_error_code
   end
@@ -127,11 +127,11 @@ class ShoppingCartPluginControllerTest &lt; ActionController::TestCase
     get :add, :id => product.id
     assert_nothing_raised { get :update_quantity, :id => product.id, :quantity => -1}
-    assert !response_ok?
+    refute response_ok?
     assert_equal 5, reponse_error_code
     assert_nothing_raised { get :update_quantity, :id => product.id, :quantity => 'asdf'}
-    assert !response_ok?
+    refute response_ok?
     assert_equal 5, reponse_error_code
   end
@@ -141,12 +141,12 @@ class ShoppingCartPluginControllerTest &lt; ActionController::TestCase
     get :add, :id => another_product.id
     assert_nothing_raised {  get :clean }
-    assert !cart?
+    refute cart?
   end
   should 'not crash if there is no cart' do
     instantiate_cart
-    assert !cart?
+    refute cart?
     assert_nothing_raised {  get :clean  }
   end
@@ -185,12 +185,12 @@ class ShoppingCartPluginControllerTest &lt; ActionController::TestCase
     product1 = fast_create(Product, :profile_id => profile.id)
     post :add, :id => product1.id
     post :send_request, :customer => { :name => "Manuel", :email => "manuel@ceu.com" }
-    assert !cart?, "cart expected to be empty!"
+    refute cart?, "cart expected to be empty!"
   end
   should 'not allow buy without any cart' do
     get :buy
-    assert !json_response[:ok]
+    refute json_response[:ok]
     assert_equal 2, json_response['error']['code']
   end
@@ -25,7 +25,7 @@ class ShoppingCartPluginMyprofileControllerTest &lt; ActionController::TestCase
     settings.save!
     post :edit, :profile => profile.identifier, :settings => {:enabled => '0'}
-    assert !settings.enabled
+    refute settings.enabled
   end
   should 'be able to enable shopping cart delivery' do
@@ -41,7 +41,7 @@ class ShoppingCartPluginMyprofileControllerTest &lt; ActionController::TestCase
     settings.save!
     post :edit, :profile => profile.identifier, :settings => {:delivery => '0'}
-    assert !settings.delivery
+    refute settings.delivery
   end
   should 'be able to choose the delivery price' do
@@ -29,6 +29,6 @@ class ShoppingCartPluginTest &lt; ActiveSupport::TestCase
   should 'be disabled by default on the enterprise' do
     profile = fast_create(Enterprise)
     settings = Noosfero::Plugin::Settings.new(profile, ShoppingCartPlugin)
-    assert !settings.enabled
+    refute settings.enabled
   end
 end
@@ -51,7 +51,7 @@ class SearchControllerTest &lt; ActionController::TestCase
 		art.save!
     get 'articles', :query => 'article found'
-		assert !assigns(:searches)[:articles][:facets].blank?
+		refute assigns(:searches)[:articles][:facets].blank?
 		assert assigns(:searches)[:articles][:facets]['facet_fields']['solr_plugin_f_type_facet'][0][0] == 'Article'
 		assert assigns(:searches)[:articles][:facets]['facet_fields']['solr_plugin_f_profile_type_facet'][0][0] == 'Person'
 		assert assigns(:searches)[:articles][:facets]['facet_fields']['solr_plugin_f_category_facet'][0][0] == 'cat1'
@@ -69,7 +69,7 @@ class SearchControllerTest &lt; ActionController::TestCase
     get 'people', :query => 'Hildebrando'
-    assert !assigns(:searches)[:people][:facets].blank?
+    refute assigns(:searches)[:people][:facets].blank?
     assert assigns(:searches)[:people][:facets]['facet_fields']['solr_plugin_f_region_facet'][0][0] == city.id.to_s
     categories_facet = assigns(:searches)[:people][:facets]['facet_fields']['solr_plugin_f_categories_facet']
@@ -89,7 +89,7 @@ class SearchControllerTest &lt; ActionController::TestCase
 		prod.save!
     get 'products', :query => 'Sound'
-		assert !assigns(:searches)[:products][:facets].blank?
+		refute assigns(:searches)[:products][:facets].blank?
 		assert assigns(:searches)[:products][:facets]['facet_fields']['solr_plugin_f_category_facet'][0][0] == @product_category.name
 		assert assigns(:searches)[:products][:facets]['facet_fields']['solr_plugin_f_region_facet'][0][0] == city.id.to_s
 		assert assigns(:searches)[:products][:facets]['facet_fields']['solr_plugin_f_qualifier_facet'][0][0] == "#{qualifier1.id} 0"
@@ -69,7 +69,7 @@ class ActsAsFacetedTest &lt; ActiveSupport::TestCase
   should 'show facets option for solr' do
     assert TestModel.facets_option_for_solr.include?(:f_type)
-    assert !TestModel.facets_option_for_solr.include?(:f_published_at)
+    refute TestModel.facets_option_for_solr.include?(:f_published_at)
   end
   should 'show facets fields for solr' do
@@ -91,7 +91,7 @@ class ProfileTest &lt; ActiveSupport::TestCase
     p = create(Profile, :name => 'wanted')
     assert Profile.find_by_contents('wanted')[:results].include?(p)
-    assert ! Profile.find_by_contents('not_wanted')[:results].include?(p)
+    refute  Profile.find_by_contents('not_wanted')[:results].include?(p)
   end
   # This problem should be solved; talk to Bráulio if it fails
@@ -38,7 +38,7 @@ class SpaminatorPluginAdminControllerTest &lt; ActionController::TestCase
     get :withhold
     reload_settings
-    assert !settings.deployed
+    refute settings.deployed
   end
   should 'make spaminator scan' do
@@ -70,7 +70,7 @@ class SpaminatorPluginAdminControllerTest &lt; ActionController::TestCase
     reload_settings
     assert settings.scheduled_scan.nil?
-    assert !Delayed::Job.exists?(settings.scheduled_scan)
+    refute Delayed::Job.exists?(settings.scheduled_scan)
   end
   private
@@ -9,7 +9,7 @@ class SpaminatorPlugin::ReportTest &lt; ActiveSupport::TestCase
     report.environment = Environment.default
     report.valid?
-    assert !report.errors.include?(:environment)
+    refute report.errors.include?(:environment)
   end
   should 'have scope of all reports from an environment' do
@@ -87,7 +87,7 @@ class SpaminatorPlugin::SpaminatorTest &lt; ActiveSupport::TestCase
     spaminator.send(:process_person_by_comments, person)
     assert_equal 0, report.spammers_by_comments
-    assert !person.abuser?
+    refute person.abuser?
     fast_create(Comment, :author_id => person, :spam => true)
     spaminator.send(:process_person_by_comments, person)
@@ -107,17 +107,17 @@ class SpaminatorPlugin::SpaminatorTest &lt; ActiveSupport::TestCase
     fast_create(Comment, :author_id => person)
     spaminator.send(:process_person_by_no_network, person)
-    assert !person.abuser?
+    refute person.abuser?
     assert_equal 0, report.spammers_by_no_network
     assert_equal 0, report.spams_by_no_network
     assert person.visible
     c1.remove_member(person)
     spaminator.send(:process_person_by_no_network, person)
-    assert !person.abuser?
+    refute person.abuser?
     assert_equal 1, report.spammers_by_no_network
     assert_equal 2, report.spams_by_no_network
-    assert !person.visible
+    refute person.visible
   end
   should 'mark person as spammer' do
@@ -126,7 +126,7 @@ class SpaminatorPlugin::SpaminatorTest &lt; ActiveSupport::TestCase
       spaminator.send(:mark_as_spammer, person)
     end
     person.reload
-    assert !person.visible
+    refute person.visible
   end
   should 'send email notification after disabling person' do
@@ -11,7 +11,7 @@ class StatisticsBlockTest &lt; ActiveSupport::TestCase
   ['community_counter', 'enterprise_counter', 'product_counter', 'category_counter', 'hit_counter'].map do |counter|
     should "#{counter} be false by default" do
       b = StatisticsBlock.new
-      assert !b.is_visible?(counter)
+      refute b.is_visible?(counter)
     end
   end
@@ -41,7 +41,7 @@ class StatisticsBlockTest &lt; ActiveSupport::TestCase
   should 'is_visible? return false if setting is false' do
     b = StatisticsBlock.new
     b.community_counter = false
-    assert !b.is_visible?('community_counter')
+    refute b.is_visible?('community_counter')
   end
   should 'templates return the Community templates of the Environment' do
@@ -349,7 +349,7 @@ class StatisticsBlockTest &lt; ActiveSupport::TestCase
   should 'is_template_counter_active? return false if setting is false' do
     b = StatisticsBlock.new
     b.templates_ids_counter = {'1' => 'false'}
-    assert !b.is_template_counter_active?(1)
+    refute b.is_template_counter_active?(1)
   end
   should 'template_counter_count return the amount of communities of the Environment using a template' do
@@ -38,7 +38,7 @@ class AccountControllerTest &lt; ActionController::TestCase
   should 'pass if confirmation value matches' do
     #StoaPlugin::UspUser.stubs(:matches?).returns(true)
     post :signup, :profile_data => {:usp_id => '12345678'}, :confirmation_field => 'cpf', :cpf => '12345678'
-    assert !assigns(:person).errors.include?(:usp_id)
+    refute assigns(:person).errors.include?(:usp_id)
   end
   should 'include invitation_code param in the person\'s attributes' do
@@ -99,7 +99,7 @@ class StoaPluginControllerTest &lt; ActionController::TestCase
     post :authenticate, :login => user.login, :password => '123456', :fields => 'special'
-    assert !json_response.keys.include?('f1')
+    refute json_response.keys.include?('f1')
     assert json_response.keys.include?('f2')
     assert json_response.keys.include?('f3')
   end
@@ -153,7 +153,7 @@ class StoaPluginControllerTest &lt; ActionController::TestCase
     usp_id = '87654321'
     StoaPlugin::UspUser.stubs(:exists?).with(usp_id).returns(false)
     get :check_usp_id, :usp_id => usp_id
-    assert !json_response['exists']
+    refute json_response['exists']
   end
   should 'check existent cpf' do
@@ -176,7 +176,7 @@ class StoaPluginControllerTest &lt; ActionController::TestCase
     user_with_cpf.stubs(:cpf).returns(nil)
     StoaPlugin::UspUser.stubs(:find_by_codpes).with(usp_id_without_cpf).returns(user_without_cpf)
     get :check_cpf, :usp_id => usp_id_without_cpf
-    assert !json_response['exists']
+    refute json_response['exists']
   end
   private
@@ -98,7 +98,7 @@ class StoaPlugin::PersonApiTest &lt; ActiveSupport::TestCase
     create_article_with_tags(person.id,  'free_software')
     api = StoaPlugin::PersonApi.new(person)
-    assert !api.tags.has_key?('noosfero')
+    refute api.tags.has_key?('noosfero')
   end
   should 'provide communities' do
@@ -33,12 +33,12 @@ class StoaPlugin::Person &lt; ActiveSupport::TestCase
     Task.create!(:code => 12345678)
     person.invitation_code = 12345678
     person.valid?
-    assert !person.errors.include?(:usp_id)
+    refute person.errors.include?(:usp_id)
     person.invitation_code = nil
     person.is_template = true
     person.valid?
-    assert !person.errors.include?(:usp_id)
+    refute person.errors.include?(:usp_id)
   end
   should 'allow multiple nil usp_id' do
@@ -47,7 +47,7 @@ class StoaPlugin::Person &lt; ActiveSupport::TestCase
     person = Person.new(:invitation_code => 87654321)
     person.valid?
-    assert !person.errors.include?(:usp_id)
+    refute person.errors.include?(:usp_id)
   end
   should 'not allow person to be saved with a finished invitation that is not his own' do
@@ -68,7 +68,7 @@ class StoaPlugin::Person &lt; ActiveSupport::TestCase
     t.finish
     person.valid?
-    assert !person.errors.include?(:usp_id)
+    refute person.errors.include?(:usp_id)
   end
@@ -21,19 +21,19 @@ class StoaPlugin::UspUserTest &lt; ActiveSupport::TestCase
   should 'check existence of usp_id' do
     assert  StoaPlugin::UspUser.exists?(123456)
-    assert !StoaPlugin::UspUser.exists?(654321)
+    refute StoaPlugin::UspUser.exists?(654321)
   end
   should 'check if usp_id matches with a cpf' do
     assert  StoaPlugin::UspUser.matches?(123456, :cpf, 12345678)
-    assert !StoaPlugin::UspUser.matches?(123456, :cpf, 87654321)
-    assert !StoaPlugin::UspUser.matches?(654321, :cpf, 12345678)
+    refute StoaPlugin::UspUser.matches?(123456, :cpf, 87654321)
+    refute StoaPlugin::UspUser.matches?(654321, :cpf, 12345678)
   end
   should 'check if usp_id matches with a birth_date' do
     assert  StoaPlugin::UspUser.matches?(123456, :birth_date, '1970-01-30')
-    assert !StoaPlugin::UspUser.matches?(123456, :birth_date, '1999-01-30')
-    assert !StoaPlugin::UspUser.matches?(654321, :birth_date, '1970-01-30')
+    refute StoaPlugin::UspUser.matches?(123456, :birth_date, '1999-01-30')
+    refute StoaPlugin::UspUser.matches?(654321, :birth_date, '1970-01-30')
   end
   should 'filter leading zeroes of id codes on exists and matches' do
@@ -25,6 +25,6 @@ class RelatedOrganizationsBlockTest &lt; ActiveSupport::TestCase
     assert @block.related_organizations.include?(child1)
     assert @block.related_organizations.include?(child2)
-    assert !@block.related_organizations.include?(org1)
+    refute @block.related_organizations.include?(org1)
   end
 end
@@ -28,7 +28,7 @@ class SubOrganizationsPlugin::RelationTest &lt; ActiveSupport::TestCase
   should 'not allow self relation' do
     org = fast_create(Organization)
     relation = SubOrganizationsPlugin::Relation.new(:parent => org, :child => org)
-    assert !relation.valid?
+    refute relation.valid?
     assert relation.errors.include?(:child)
   end
@@ -60,7 +60,7 @@ class SubOrganizationsPlugin::RelationTest &lt; ActiveSupport::TestCase
     SubOrganizationsPlugin::Relation.create!(:parent => org1, :child => org2)
     relation = SubOrganizationsPlugin::Relation.new(:parent => org2, :child => org1)
-    assert !relation.valid?
+    refute relation.valid?
     assert relation.errors.include?(:child)
   end
@@ -72,10 +72,10 @@ class SubOrganizationsPlugin::RelationTest &lt; ActiveSupport::TestCase
     r1 = SubOrganizationsPlugin::Relation.new(:parent => org2, :child => org3)
     r2 = SubOrganizationsPlugin::Relation.new(:parent => org3, :child => org1)
-    assert !r1.valid?
+    refute r1.valid?
     assert r1.errors.include?(:child)
-    assert !r2.valid?
+    refute r2.valid?
     assert r2.errors.include?(:child)
   end
@@ -10,8 +10,8 @@ class ToleranceTimePlugin::PublicationTest &lt; ActiveSupport::TestCase
     publication.target = fast_create(Article)
     publication.valid?
-    assert !publication.errors[:target_id].present?
-    assert !publication.errors[:target_type].present?
+    refute publication.errors[:target_id].present?
+    refute publication.errors[:target_type].present?
   end
   should 'validate uniqueness of target' do
@@ -51,9 +51,9 @@ class ToleranceTimePlugin::PublicationTest &lt; ActiveSupport::TestCase
     on_time_comment.save!
     assert expired_article.expired?
-    assert !on_time_article.expired?
+    refute on_time_article.expired?
     assert expired_comment.expired?
-    assert !on_time_comment.expired?
+    refute on_time_comment.expired?
   end
   should 'consider tolerance infinity if not defined' do
@@ -64,7 +64,7 @@ class ToleranceTimePlugin::PublicationTest &lt; ActiveSupport::TestCase
     article_publication.save!
     ToleranceTimePlugin::Tolerance.create!(:profile => profile)
-    assert !article_publication.expired?
+    refute article_publication.expired?
   end
   should 'not crash if profile has no tolerance yet defined' do
@@ -74,6 +74,6 @@ class ToleranceTimePlugin::PublicationTest &lt; ActiveSupport::TestCase
     article_publication.created_at = 1000.years.ago
     article_publication.save!
-    assert !article_publication.expired?
+    refute article_publication.expired?
   end
 end
@@ -8,7 +8,7 @@ class ToleranceTimePlugin::ToleranceTest &lt; ActiveSupport::TestCase
     tolerance.profile = fast_create(Profile)
     tolerance.valid?
-    assert !tolerance.errors[:profile_id].present?
+    refute tolerance.errors[:profile_id].present?
   end
   should 'validate uniqueness of profile' do
@@ -36,19 +36,19 @@ class VideoBlockTest &lt; ActiveSupport::TestCase
   should "is_youtube return false when the url not contains youtube video ID" do
     block = VideoBlock.new
     block.url = "youtube.com/"
-    assert !block.is_youtube?
+    refute block.is_youtube?
   end
   should "is_youtube return false when the url contains empty youtube video ID" do
     block = VideoBlock.new
     block.url = "youtube.com/?v="
-    assert !block.is_youtube?
+    refute block.is_youtube?
   end
   should "is_youtube return false when the url contains an invalid youtube link" do
     block = VideoBlock.new
     block.url = "http://www.yt.com/?v=XXXXX"
-    assert !block.is_youtube?
+    refute block.is_youtube?
   end
   should "format embed video for youtube videos" do
@@ -131,19 +131,19 @@ class VideoBlockTest &lt; ActiveSupport::TestCase
   should "is_vimeo return false when the url not contains vimeo video ID" do
     block = VideoBlock.new
     block.url = "vimeo.com/home"
-    assert !block.is_vimeo?
+    refute block.is_vimeo?
   end
   should "is_vimeo return false when the url contains empty vimeo video ID" do
     block = VideoBlock.new
     block.url = "vimeo.com/"
-    assert !block.is_vimeo?
+    refute block.is_vimeo?
   end
   should "is_vimeo return false when the url contains an invalid vimeo link" do
     block = VideoBlock.new
     block.url = "http://www.vmsd.com/98979"
-    assert !block.is_vimeo?
+    refute block.is_vimeo?
   end
   should "format embed video for vimeo videos" do
@@ -205,13 +205,13 @@ class VideoBlockTest &lt; ActiveSupport::TestCase
   should "is_video return false if url ends without mp4, ogg, ogv, webm" do
     block = VideoBlock.new
     block.url = "http://www.vmsd.com/98979.mp4r"
-    assert !block.is_video_file?
+    refute block.is_video_file?
     block.url = "http://www.vmsd.com/98979.oggr"
-    assert !block.is_video_file?
+    refute block.is_video_file?
     block.url = "http://www.vmsd.com/98979.ogvr"
-    assert !block.is_video_file?
+    refute block.is_video_file?
     block.url = "http://www.vmsd.com/98979.webmr"
-    assert !block.is_video_file?
+    refute block.is_video_file?
   end
   should 'display video block partial' do
@@ -27,7 +27,7 @@ class VotePluginProfileControllerTest &lt; ActionController::TestCase
   should 'not vote if value is not allowed' do
     xhr :post, :vote, :profile => profile.identifier, :id => comment.id, :model => 'comment', :vote => 4
-    assert !profile.voted_on?(comment)
+    refute profile.voted_on?(comment)
   end
   should 'not vote in a disallowed model' do
@@ -43,7 +43,7 @@ class VotePluginProfileControllerTest &lt; ActionController::TestCase
   should 'unlike comment' do
     xhr :post, :vote, :profile => profile.identifier, :id => comment.id, :model => 'comment', :vote => 1
     xhr :post, :vote, :profile => profile.identifier, :id => comment.id, :model => 'comment', :vote => 1
-    assert !profile.voted_for?(comment)
+    refute profile.voted_for?(comment)
   end
   should 'dislike comment' do
@@ -54,7 +54,7 @@ class VotePluginProfileControllerTest &lt; ActionController::TestCase
   should 'undislike comment' do
     xhr :post, :vote, :profile => profile.identifier, :id => comment.id, :model => 'comment', :vote => -1
     xhr :post, :vote, :profile => profile.identifier, :id => comment.id, :model => 'comment', :vote => -1
-    assert !profile.voted_against?(comment)
+    refute profile.voted_against?(comment)
   end
   should 'dislike a liked comment' do
@@ -15,7 +15,7 @@ class WorkAssignmentPluginTest &lt; ActiveSupport::TestCase
             },
             :without_protection => true
           )
-    assert !WorkAssignmentPlugin.is_submission?(content)
+    refute WorkAssignmentPlugin.is_submission?(content)
     work_assignment = WorkAssignmentPlugin::WorkAssignment.create!(:name => 'Work Assignment', :profile => organization)
     content.parent = work_assignment
@@ -28,7 +28,7 @@ class WorkAssignmentPluginTest &lt; ActiveSupport::TestCase
   should 'be able to download submission if work_assignment published submissions' do
     submission = create_submission
-    assert !WorkAssignmentPlugin.can_download_submission?(nil, submission)
+    refute WorkAssignmentPlugin.can_download_submission?(nil, submission)
     work_assignment = submission.parent.parent
     work_assignment.publish_submissions = true
@@ -41,7 +41,7 @@ class WorkAssignmentPluginTest &lt; ActiveSupport::TestCase
   should 'be able to download submission if the user is author of it' do
     person = fast_create(Person)
     submission = create_submission
-    assert !WorkAssignmentPlugin.can_download_submission?(person, submission)
+    refute WorkAssignmentPlugin.can_download_submission?(person, submission)
     submission = create_submission(person)
     assert WorkAssignmentPlugin.can_download_submission?(person, submission)
@@ -50,7 +50,7 @@ class WorkAssignmentPluginTest &lt; ActiveSupport::TestCase
   should 'be able to download submission if the user has the view_private_content permission on the profile' do
     person = fast_create(Person)
     submission = create_submission
-    assert !WorkAssignmentPlugin.can_download_submission?(person, submission)
+    refute WorkAssignmentPlugin.can_download_submission?(person, submission)
     moderator = create_user_with_permission('moderator', 'view_private_content', submission.profile)
     assert WorkAssignmentPlugin.can_download_submission?(moderator, submission)
@@ -142,14 +142,14 @@ class AccountControllerTest &lt; ActionController::TestCase
     users(:johndoe).update_attribute :remember_token_expires_at, 5.minutes.ago
     @request.cookies["auth_token"] = cookie_for(:johndoe)
     get :index
-    assert !@controller.send(:logged_in?)
+    refute @controller.send(:logged_in?)
   end
   def test_should_fail_cookie_login
     users(:johndoe).remember_me
     @request.cookies["auth_token"] = auth_token('invalid_auth_token')
     get :index
-    assert !@controller.send(:logged_in?)
+    refute @controller.send(:logged_in?)
   end
   def test_should_display_anonymous_user_options
@@ -187,7 +187,7 @@ class AccountControllerTest &lt; ActionController::TestCase
     post :change_password, :current_password => 'wrong', :new_password => 'blabla', :new_password_confirmation => 'blabla'
     assert_response :success
     assert_template 'change_password'
-    assert ! User.find_by_login('ze').authenticated?('blabla')
+    refute  User.find_by_login('ze').authenticated?('blabla')
     assert_equal users(:ze), @controller.send(:current_user)
   end
@@ -196,8 +196,8 @@ class AccountControllerTest &lt; ActionController::TestCase
     post :change_password, :current_password => 'test', :new_password => 'blabla', :new_password_confirmation => 'blibli'
     assert_response :success
     assert_template 'change_password'
-    assert !assigns(:current_user).authenticated?('blabla')
-    assert !assigns(:current_user).authenticated?('blibli')
+    refute assigns(:current_user).authenticated?('blabla')
+    refute assigns(:current_user).authenticated?('blibli')
     assert_equal users(:ze), @controller.send(:current_user)
   end
@@ -282,7 +282,7 @@ class AccountControllerTest &lt; ActionController::TestCase
     assert_response :success
     assert_template 'new_password'
-    assert !User.find(user.id).authenticated?('onepass')
+    refute User.find(user.id).authenticated?('onepass')
   end
   should 'display login popup' do
@@ -536,7 +536,7 @@ class AccountControllerTest &lt; ActionController::TestCase
     post :activate_enterprise, :enterprise_code => '0123456789', :answer => '1998', :terms_accepted => false
     ent.reload
-    assert !ent.enabled
+    refute ent.enabled
     assert_not_includes ent.members, p
   end
@@ -102,7 +102,7 @@ class AdminPanelControllerTest &lt; ActionController::TestCase
     post :site_info, :environment => { :terms_of_use => content }
     assert_redirected_to :action => 'index'
-    assert !Environment.default.has_terms_of_use?
+    refute Environment.default.has_terms_of_use?
   end
   should 'save subject and body of signup welcome text' do
@@ -113,7 +113,7 @@ class AdminPanelControllerTest &lt; ActionController::TestCase
     assert_equal subject, Environment.default.signup_welcome_text[:subject]
     assert_equal body, Environment.default.signup_welcome_text[:body]
-    assert !Environment.default.signup_welcome_text.blank?
+    refute Environment.default.signup_welcome_text.blank?
   end
   should 'not save empty string as signup welcome text' do
@@ -121,7 +121,7 @@ class AdminPanelControllerTest &lt; ActionController::TestCase
     post :site_info, :environment => { :signup_welcome_text_body => content }
     assert_redirected_to :action => 'index'
-    assert !Environment.default.has_signup_welcome_text?
+    refute Environment.default.has_signup_welcome_text?
   end
   should 'sanitize message for disabled enterprise with white_list' do
@@ -390,6 +390,6 @@ class AdminPanelControllerTest &lt; ActionController::TestCase
     assert_redirected_to :action => 'index'
     assert_equal body, Environment.default.signup_welcome_screen_body
-    assert !Environment.default.signup_welcome_screen_body.blank?
+    refute Environment.default.signup_welcome_screen_body.blank?
   end
 end
@@ -150,7 +150,7 @@ class ApplicationControllerTest &lt; ActionController::TestCase
     class DoesNotUsesBlocksTestController < ApplicationController
       no_design_blocks
     end
-    assert !DoesNotUsesBlocksTestController.new.send(:uses_design_blocks?)
+    refute DoesNotUsesBlocksTestController.new.send(:uses_design_blocks?)
   end
   should 'generate blocks' do
@@ -141,7 +141,7 @@ class CmsControllerTest &lt; ActionController::TestCase
     profile.description = 'a' * 600
     profile.save(:validate => false)
-    assert !profile.valid?
+    refute profile.valid?
     assert_not_equal a, profile.home_page
     post :set_home_page, :profile => profile.identifier, :id => a.id
@@ -779,9 +779,9 @@ class CmsControllerTest &lt; ActionController::TestCase
     post :new, :profile => profile.identifier, :type => 'TextileArticle', :parent_id => folder.id, :article => { :name => 'new-private-article'}
     folder.reload
-    assert !assigns(:article).published?
+    refute assigns(:article).published?
     assert_equal 'new-private-article', folder.children[0].name
-    assert !folder.children[0].published?
+    refute folder.children[0].published?
   end
   should 'publish the article in the selected community if community is not moderated' do
@@ -1310,7 +1310,7 @@ class CmsControllerTest &lt; ActionController::TestCase
     UploadedFile.attachment_options[:thumbnails].each do |suffix, size|
       assert File.exists?(UploadedFile.find(file_1.id).public_filename(suffix))
-      assert !File.exists?(UploadedFile.find(file_2.id).public_filename(suffix))
+      refute File.exists?(UploadedFile.find(file_2.id).public_filename(suffix))
     end
     file_1.destroy
     file_2.destroy
@@ -1553,7 +1553,7 @@ class CmsControllerTest &lt; ActionController::TestCase
     profile.articles << Blog.new(:name => 'Blog for test', :profile => profile, :display_posts_in_current_language => true)
     post :edit, :profile => profile.identifier, :id => profile.blog.id, :article => { :display_posts_in_current_language => false }
     profile.blog.reload
-    assert !profile.blog.display_posts_in_current_language?
+    refute profile.blog.display_posts_in_current_language?
   end
   should 'update to true blog display posts in current language setting' do
@@ -417,7 +417,7 @@ class CommentControllerTest &lt; ActionController::TestCase
     login_as 'normaluser' # normaluser cannot remove other people's comments
     xhr :post, :mark_as_spam, :profile => profile.identifier, :id => comment.id
     comment.reload
-    assert !comment.spam?
+    refute comment.spam?
   end
   should "not be able to mark as spam other people's comments if not moderator or admin and return json if is an ajax request" do
@@ -434,7 +434,7 @@ class CommentControllerTest &lt; ActionController::TestCase
     xhr :post, :mark_as_spam, :profile => profile.identifier, :id => comment.id
     assert_response :success
     comment.reload
-    assert !comment.spam?
+    refute comment.spam?
     assert_match /\{\"ok\":false\}/, @response.body
   end
@@ -207,9 +207,9 @@ class EnvironmentDesignControllerTest &lt; ActionController::TestCase
     Noosfero::Plugin::Manager.any_instance.stubs(:enabled_plugins).returns([TestBlockPlugin.new])
     assert @controller.available_blocks.include?(CustomBlock1)
-    assert !@controller.available_blocks.include?(CustomBlock2)
-    assert !@controller.available_blocks.include?(CustomBlock3)
-    assert !@controller.available_blocks.include?(CustomBlock4)
+    refute @controller.available_blocks.include?(CustomBlock2)
+    refute @controller.available_blocks.include?(CustomBlock3)
+    refute @controller.available_blocks.include?(CustomBlock4)
   end
   should 'a block plugin with center position add new blocks only in this position' do
@@ -247,12 +247,12 @@ class EnvironmentDesignControllerTest &lt; ActionController::TestCase
     assert @controller.instance_variable_get('@center_block_types').include?(CustomBlock1)
     assert @controller.instance_variable_get('@center_block_types').include?(CustomBlock2)
     assert @controller.instance_variable_get('@center_block_types').include?(CustomBlock3)
-    assert !@controller.instance_variable_get('@center_block_types').include?(CustomBlock4)
-    assert !@controller.instance_variable_get('@center_block_types').include?(CustomBlock5)
-    assert !@controller.instance_variable_get('@center_block_types').include?(CustomBlock6)
-    assert !@controller.instance_variable_get('@center_block_types').include?(CustomBlock7)
-    assert !@controller.instance_variable_get('@center_block_types').include?(CustomBlock8)
-    assert !@controller.instance_variable_get('@center_block_types').include?(CustomBlock9)
+    refute @controller.instance_variable_get('@center_block_types').include?(CustomBlock4)
+    refute @controller.instance_variable_get('@center_block_types').include?(CustomBlock5)
+    refute @controller.instance_variable_get('@center_block_types').include?(CustomBlock6)
+    refute @controller.instance_variable_get('@center_block_types').include?(CustomBlock7)
+    refute @controller.instance_variable_get('@center_block_types').include?(CustomBlock8)
+    refute @controller.instance_variable_get('@center_block_types').include?(CustomBlock9)
   end
   should 'a block plugin with side position add new blocks only in this position' do
@@ -287,9 +287,9 @@ class EnvironmentDesignControllerTest &lt; ActionController::TestCase
     get :add_block
     assert_response :success
-    assert !@controller.instance_variable_get('@side_block_types').include?(CustomBlock1)
-    assert !@controller.instance_variable_get('@side_block_types').include?(CustomBlock2)
-    assert !@controller.instance_variable_get('@side_block_types').include?(CustomBlock3)
+    refute @controller.instance_variable_get('@side_block_types').include?(CustomBlock1)
+    refute @controller.instance_variable_get('@side_block_types').include?(CustomBlock2)
+    refute @controller.instance_variable_get('@side_block_types').include?(CustomBlock3)
     assert @controller.instance_variable_get('@side_block_types').include?(CustomBlock4)
     assert @controller.instance_variable_get('@side_block_types').include?(CustomBlock5)
     assert @controller.instance_variable_get('@side_block_types').include?(CustomBlock6)
@@ -328,13 +328,13 @@ class EnvironmentDesignControllerTest &lt; ActionController::TestCase
     get :add_block
     assert_response :success
-    assert !@controller.instance_variable_get('@center_block_types').include?(CustomBlock1)
-    assert !@controller.instance_variable_get('@center_block_types').include?(CustomBlock2)
-    assert !@controller.instance_variable_get('@center_block_types').include?(CustomBlock3)
+    refute @controller.instance_variable_get('@center_block_types').include?(CustomBlock1)
+    refute @controller.instance_variable_get('@center_block_types').include?(CustomBlock2)
+    refute @controller.instance_variable_get('@center_block_types').include?(CustomBlock3)
     assert @controller.instance_variable_get('@center_block_types').include?(CustomBlock4)
-    assert !@controller.instance_variable_get('@side_block_types').include?(CustomBlock5)
-    assert !@controller.instance_variable_get('@side_block_types').include?(CustomBlock6)
-    assert !@controller.instance_variable_get('@side_block_types').include?(CustomBlock7)
+    refute @controller.instance_variable_get('@side_block_types').include?(CustomBlock5)
+    refute @controller.instance_variable_get('@side_block_types').include?(CustomBlock6)
+    refute @controller.instance_variable_get('@side_block_types').include?(CustomBlock7)
     assert @controller.instance_variable_get('@side_block_types').include?(CustomBlock8)
   end
@@ -38,7 +38,7 @@ class FeaturesControllerTest &lt; ActionController::TestCase
     v = Environment.find(environments(:anhetegua_net).id)
     assert v.enabled?('feature2')
     assert v.enabled?('feature2') 
-    assert !v.enabled?('feature3')
+    refute v.enabled?('feature3')
   end
   def test_update_disable_all
@@ -47,9 +47,9 @@ class FeaturesControllerTest &lt; ActionController::TestCase
     assert_redirected_to :action => 'index'
     assert_kind_of String, session[:notice]
     v = Environment.find(environments(:anhetegua_net).id)
-    assert !v.enabled?('feature1')
-    assert !v.enabled?('feature2')
-    assert !v.enabled?('feature3')
+    refute v.enabled?('feature1')
+    refute v.enabled?('feature2')
+    refute v.enabled?('feature3')
   end
   def test_update_no_post
@@ -164,7 +164,7 @@ class InviteControllerTest &lt; ActionController::TestCase
     assert ContactList.exists?(contact_list.id)
     process_delayed_job_queue
-    assert !ContactList.exists?(contact_list.id)
+    refute ContactList.exists?(contact_list.id)
   end
   should 'destroy contact_list after invitation when import is not manual' do
@@ -173,7 +173,7 @@ class InviteControllerTest &lt; ActionController::TestCase
     assert ContactList.exists?(contact_list.id)
     process_delayed_job_queue
-    assert !ContactList.exists?(contact_list.id)
+    refute ContactList.exists?(contact_list.id)
   end
   should 'return empty hash as invitation data if contact list was not fetched' do
@@ -95,7 +95,7 @@ class MailconfControllerTest &lt; ActionController::TestCase
     login_as('ze')
     assert user.enable_email!
     post :disable, :profile => 'ze'
-    assert !Profile['ze'].user.enable_email
+    refute Profile['ze'].user.enable_email
   end
   should 'go back on save' do
@@ -44,7 +44,7 @@ class ManageProductsControllerTest &lt; ActionController::TestCase
     assert_difference 'Product.count' do
       post 'new', :profile => @enterprise.identifier, :product => {:name => 'test product'}, :selected_category_id => @product_category.id
       assert assigns(:product)
-      assert !assigns(:product).new_record?
+      refute assigns(:product).new_record?
     end
   end
@@ -86,7 +86,7 @@ class ManageProductsControllerTest &lt; ActionController::TestCase
     post :edit, :profile => @enterprise.identifier, :product => {:name => 'new test product'}, :id => product.id, :field => 'name'
     assert_response :success
     assert assigns(:product)
-    assert ! assigns(:product).new_record?
+    refute  assigns(:product).new_record?
     assert_equal product, Product.find_by_name('new test product')
   end
@@ -95,7 +95,7 @@ class ManageProductsControllerTest &lt; ActionController::TestCase
     post :edit, :profile => @enterprise.identifier, :product => {:description => 'A very good product!'}, :id => product.id, :field => 'info'
     assert_response :success
     assert assigns(:product)
-    assert ! assigns(:product).new_record?
+    refute  assigns(:product).new_record?
     assert_equal 'A very good product!', Product.find_by_name('test product').description
   end
@@ -104,7 +104,7 @@ class ManageProductsControllerTest &lt; ActionController::TestCase
     post :edit, :profile => @enterprise.identifier, :product => { :image_builder => { :uploaded_data => fixture_file_upload('/files/rails.png', 'image/png') } }, :id => product.id, :field => 'image'
     assert_response :success
     assert assigns(:product)
-    assert ! assigns(:product).new_record?
+    refute  assigns(:product).new_record?
     assert_equal 'rails.png', Product.find_by_name('test product').image.filename
   end
@@ -129,7 +129,7 @@ class ManageProductsControllerTest &lt; ActionController::TestCase
       assert_response :redirect
       assert_redirected_to :action => 'index'
       assert assigns(:product)
-      assert ! Product.find_by_name('test product')
+      refute  Product.find_by_name('test product')
     end
   end
@@ -491,7 +491,7 @@ class ManageProductsControllerTest &lt; ActionController::TestCase
     resp = ActiveSupport::JSON.decode(@response.body)
     assert_nil resp['name']
     assert_nil resp['id']
-    assert !resp['ok']
+    refute resp['ok']
     assert_match /blank/, resp['error_msg']
   end
@@ -501,7 +501,7 @@ class ManageProductsControllerTest &lt; ActionController::TestCase
     resp = ActiveSupport::JSON.decode(@response.body)
     assert_nil resp['name']
     assert_nil resp['id']
-    assert !resp['ok']
+    refute resp['ok']
     assert_match /too long/, resp['error_msg']
   end
@@ -86,7 +86,7 @@ class OrganizationsControllerTest &lt; ActionController::TestCase
   should 'activate organization profile' do
     organization = fast_create(Organization, :visible => false, :environment_id => environment.id)
-    assert !organization.visible?
+    refute organization.visible?
     get :activate, {:id => organization.id}
     organization.reload
@@ -101,7 +101,7 @@ class OrganizationsControllerTest &lt; ActionController::TestCase
     get :deactivate, {:id => organization.id}
     organization.reload
-    assert !organization.visible
+    refute organization.visible
   end
   should 'destroy organization profile' do
@@ -595,7 +595,7 @@ class ProfileControllerTest &lt; ActionController::TestCase
     assert_response :success
     assert_equal "Message successfully sent.", assigns(:message)
     profile.reload
-    assert !profile.scraps_received.empty?
+    refute profile.scraps_received.empty?
   end
   should "leave a scrap on another profile" do
@@ -608,7 +608,7 @@ class ProfileControllerTest &lt; ActionController::TestCase
     assert_response :success
     assert_equal "Message successfully sent.", assigns(:message)
     another_person.reload
-    assert !another_person.scraps_received.empty?
+    refute another_person.scraps_received.empty?
   end
   should "the owner of scrap could remove it" do
@@ -729,7 +729,7 @@ class ProfileControllerTest &lt; ActionController::TestCase
   should 'not see the friends activities in the current profile' do
     p2 = create_user.person
-    assert !profile.is_a_friend?(p2)
+    refute profile.is_a_friend?(p2)
     p3 = create_user.person
     p3.add_friend(profile)
     assert p3.is_a_friend?(profile)
@@ -753,7 +753,7 @@ class ProfileControllerTest &lt; ActionController::TestCase
   should 'see all the activities in the current profile network' do
     p1= create_user.person
     p2= create_user.person
-    assert !p1.is_a_friend?(p2)
+    refute p1.is_a_friend?(p2)
     p3= create_user.person
     p3.add_friend(p1)
@@ -783,7 +783,7 @@ class ProfileControllerTest &lt; ActionController::TestCase
   should 'the network activity be visible only to profile followers' do
     p1= create_user.person
     p2= create_user.person
-    assert !p1.is_a_friend?(p2)
+    refute p1.is_a_friend?(p2)
     p3= create_user.person
     p3.add_friend(p1)
@@ -826,7 +826,7 @@ class ProfileControllerTest &lt; ActionController::TestCase
   should 'the network activity be visible only to logged users' do
     p1= create_user.person
     p2= create_user.person
-    assert !p1.is_a_friend?(p2)
+    refute p1.is_a_friend?(p2)
     p3= create_user.person
     p3.add_friend(p1)
     assert p3.is_a_friend?(p1)
@@ -862,7 +862,7 @@ class ProfileControllerTest &lt; ActionController::TestCase
     p1= fast_create(Person)
     community = fast_create(Community)
     p2= fast_create(Person)
-    assert !p1.is_a_friend?(p2)
+    refute p1.is_a_friend?(p2)
     community.add_member(p1)
     community.add_member(p2)
     ActionTracker::Record.destroy_all
@@ -888,7 +888,7 @@ class ProfileControllerTest &lt; ActionController::TestCase
   should 'the self activity not crashes with user not logged in' do
     p1= create_user.person
     p2= create_user.person
-    assert !p1.is_a_friend?(p2)
+    refute p1.is_a_friend?(p2)
     p3= create_user.person
     p3.add_friend(p1)
     assert p3.is_a_friend?(p1)
@@ -1404,7 +1404,7 @@ class ProfileControllerTest &lt; ActionController::TestCase
     login_as(profile.identifier)
     get :index, :profile => profile.identifier
-    assert !/This article makes me hungry/.match(@response.body), 'Spam comment was shown!'
+    refute /This article makes me hungry/.match(@response.body), 'Spam comment was shown!'
   end
   should 'display comment in wall from non logged users after click in view all comments' do
@@ -203,12 +203,12 @@ class ProfileDesignControllerTest &lt; ActionController::TestCase
     assert @controller.instance_variable_get('@center_block_types').include?(CustomBlock1)
     assert @controller.instance_variable_get('@center_block_types').include?(CustomBlock2)
     assert @controller.instance_variable_get('@center_block_types').include?(CustomBlock3)
-    assert !@controller.instance_variable_get('@center_block_types').include?(CustomBlock4)
-    assert !@controller.instance_variable_get('@center_block_types').include?(CustomBlock5)
-    assert !@controller.instance_variable_get('@center_block_types').include?(CustomBlock6)
-    assert !@controller.instance_variable_get('@center_block_types').include?(CustomBlock7)
-    assert !@controller.instance_variable_get('@center_block_types').include?(CustomBlock8)
-    assert !@controller.instance_variable_get('@center_block_types').include?(CustomBlock9)
+    refute @controller.instance_variable_get('@center_block_types').include?(CustomBlock4)
+    refute @controller.instance_variable_get('@center_block_types').include?(CustomBlock5)
+    refute @controller.instance_variable_get('@center_block_types').include?(CustomBlock6)
+    refute @controller.instance_variable_get('@center_block_types').include?(CustomBlock7)
+    refute @controller.instance_variable_get('@center_block_types').include?(CustomBlock8)
+    refute @controller.instance_variable_get('@center_block_types').include?(CustomBlock9)
   end
   should 'a block plugin with side position add new blocks only in this position' do
@@ -242,9 +242,9 @@ class ProfileDesignControllerTest &lt; ActionController::TestCase
     get :add_block, :profile => 'designtestuser'
     assert_response :success
-    assert !@controller.instance_variable_get('@side_block_types').include?(CustomBlock1)
-    assert !@controller.instance_variable_get('@side_block_types').include?(CustomBlock2)
-    assert !@controller.instance_variable_get('@side_block_types').include?(CustomBlock3)
+    refute @controller.instance_variable_get('@side_block_types').include?(CustomBlock1)
+    refute @controller.instance_variable_get('@side_block_types').include?(CustomBlock2)
+    refute @controller.instance_variable_get('@side_block_types').include?(CustomBlock3)
     assert @controller.instance_variable_get('@side_block_types').include?(CustomBlock4)
     assert @controller.instance_variable_get('@side_block_types').include?(CustomBlock5)
     assert @controller.instance_variable_get('@side_block_types').include?(CustomBlock6)
@@ -283,13 +283,13 @@ class ProfileDesignControllerTest &lt; ActionController::TestCase
     assert_response :success
     assert @controller.instance_variable_get('@center_block_types').include?(CustomBlock1)
-    assert !@controller.instance_variable_get('@center_block_types').include?(CustomBlock2)
-    assert !@controller.instance_variable_get('@center_block_types').include?(CustomBlock3)
-    assert !@controller.instance_variable_get('@center_block_types').include?(CustomBlock4)
+    refute @controller.instance_variable_get('@center_block_types').include?(CustomBlock2)
+    refute @controller.instance_variable_get('@center_block_types').include?(CustomBlock3)
+    refute @controller.instance_variable_get('@center_block_types').include?(CustomBlock4)
     assert @controller.instance_variable_get('@side_block_types').include?(CustomBlock5)
-    assert !@controller.instance_variable_get('@side_block_types').include?(CustomBlock6)
-    assert !@controller.instance_variable_get('@side_block_types').include?(CustomBlock7)
-    assert !@controller.instance_variable_get('@side_block_types').include?(CustomBlock8)
+    refute @controller.instance_variable_get('@side_block_types').include?(CustomBlock6)
+    refute @controller.instance_variable_get('@side_block_types').include?(CustomBlock7)
+    refute @controller.instance_variable_get('@side_block_types').include?(CustomBlock8)
   end
   should 'not edit main block with never option' do
@@ -726,7 +726,7 @@ class ProfileDesignControllerTest &lt; ActionController::TestCase
     end
     Noosfero::Plugin::Manager.any_instance.stubs(:enabled_plugins).returns([TestBlockPlugin.new])
-    assert !@controller.available_blocks.include?(CustomBlock1)
+    refute @controller.available_blocks.include?(CustomBlock1)
   end
   should 'clone a block' do
@@ -333,7 +333,7 @@ class ProfileEditorControllerTest &lt; ActionController::TestCase
     post :edit, :profile => org.identifier, :profile_data => { :closed => 'false' }
     org.reload
-    assert !org.closed
+    refute org.closed
   end
   should 'not display option to close when it is enterprise' do
@@ -477,13 +477,13 @@ class ProfileEditorControllerTest &lt; ActionController::TestCase
   should 'not enable enterprise without confirmation' do
     ent = fast_create(Enterprise, :enabled => false)
     post :enable, :profile => ent.identifier
-    assert !assigns(:to_enable).enabled?
+    refute assigns(:to_enable).enabled?
   end
   should 'disable enterprise after confirmation' do
     ent = fast_create(Enterprise, :enabled => true)
     post :disable, :profile => ent.identifier, :confirmation => 1
-    assert !assigns(:to_disable).enabled?
+    refute assigns(:to_disable).enabled?
   end
   should 'not disable enterprise without confirmation' do
@@ -883,7 +883,7 @@ class ProfileEditorControllerTest &lt; ActionController::TestCase
   should 'have welcome_page only for template' do
     organization = fast_create(Organization, :is_template => false)
     @controller.stubs(:profile).returns(organization)
-    assert !@controller.send(:has_welcome_page)
+    refute @controller.send(:has_welcome_page)
     organization = fast_create(Organization, :is_template => true)
     @controller.stubs(:profile).returns(organization)
@@ -891,7 +891,7 @@ class ProfileEditorControllerTest &lt; ActionController::TestCase
     person = fast_create(Person, :is_template => false)
     @controller.stubs(:profile).returns(person)
-    assert !@controller.send(:has_welcome_page)
+    refute @controller.send(:has_welcome_page)
     person = fast_create(Person, :is_template => true)
     @controller.stubs(:profile).returns(person)
@@ -916,7 +916,7 @@ class ProfileEditorControllerTest &lt; ActionController::TestCase
   should 'create welcome_page with public false by default' do
     get :welcome_page, :profile => fast_create(Person, :is_template => true).identifier
-    assert !assigns(:welcome_page).published
+    refute assigns(:welcome_page).published
   end
   should 'update welcome page and redirect to index' do
@@ -26,7 +26,7 @@ class RegionValidatorsControllerTest &lt; ActionController::TestCase
     give_permission('ze', 'manage_environment_validators', environment)
     region = Region.new(:name => 'my region')
     environment.regions << region
-    assert !region.new_record?
+    refute region.new_record?
     @controller.expects(:environment).returns(environment).at_least_once
@@ -42,7 +42,7 @@ class RegionValidatorsControllerTest &lt; ActionController::TestCase
     give_permission('ze', 'manage_environment_validators', environment)    
     region = Region.new(:name => 'my region')
     environment.regions << region
-    assert !region.new_record?
+    refute region.new_record?
     org = create(Organization, :name => "My frufru organization", :identifier => 'frufru', :environment_id => environment.id)
     @controller.expects(:environment).returns(environment).at_least_once
@@ -58,7 +58,7 @@ class RegionValidatorsControllerTest &lt; ActionController::TestCase
     give_permission('ze', 'manage_environment_validators', environment)
     region = Region.new(:name => 'my region')
     environment.regions << region
-    assert !region.new_record?
+    refute region.new_record?
     org = create(Organization, :name => "My frufru organization", :identifier => 'frufru', :environment_id => environment.id)
     @controller.expects(:environment).returns(environment).at_least_once
@@ -75,7 +75,7 @@ class RegionValidatorsControllerTest &lt; ActionController::TestCase
     give_permission('ze', 'manage_environment_validators', environment)
     region = Region.new(:name => 'my region')
     environment.regions << region
-    assert !region.new_record?
+    refute region.new_record?
     org = create(Organization, :name => "My frufru organization", :identifier => 'frufru', :environment_id => environment.id)
     region.validators << org
@@ -85,7 +85,7 @@ class RegionValidatorsControllerTest &lt; ActionController::TestCase
     assert_response :redirect
     assert_redirected_to :action => 'region', :id => region.id
-    assert !Region.find(region.id).validators.include?(org)
+    refute Region.find(region.id).validators.include?(org)
   end
 end
@@ -267,11 +267,11 @@ class SearchControllerTest &lt; ActionController::TestCase
     get :index, :query => 'something'
     assert assigns(:searches).has_key?(:articles)
-    assert !assigns(:searches).has_key?(:enterprises)
-    assert !assigns(:searches).has_key?(:people)
-    assert !assigns(:searches).has_key?(:communities)
-    assert !assigns(:searches).has_key?(:products)
-    assert !assigns(:searches).has_key?(:events)
+    refute assigns(:searches).has_key?(:enterprises)
+    refute assigns(:searches).has_key?(:people)
+    refute assigns(:searches).has_key?(:communities)
+    refute assigns(:searches).has_key?(:products)
+    refute assigns(:searches).has_key?(:events)
   end
   should 'search all enabled assets in general search' do
@@ -288,7 +288,7 @@ class SearchControllerTest &lt; ActionController::TestCase
     [:articles, :enterprises, :people, :communities, :products, :events].select do |key, name|
       !assigns(:environment).enabled?('disable_asset_' + key.to_s)
     end.each do |asset|
-      assert !assigns(:searches)[asset][:results].empty?
+      refute assigns(:searches)[asset][:results].empty?
     end
   end
@@ -40,13 +40,13 @@ class SpamControllerTest &lt; ActionController::TestCase
   test "should remove comments" do
     post :index, :profile => @community.identifier, :remove_comment => @spam_comment.id
-    assert !Comment.exists?(@spam_comment.id)
+    refute Comment.exists?(@spam_comment.id)
   end
   test "should remove suggest articles" do
     post :index, :profile => @community.identifier, :remove_task => @spam_suggest_article.id
-    assert !SuggestArticle.exists?(@spam_suggest_article.id)
+    refute SuggestArticle.exists?(@spam_suggest_article.id)
   end
   should 'properly render spam that have replies' do
@@ -517,7 +517,7 @@ class TasksControllerTest &lt; ActionController::TestCase
     post :change_responsible, :task_id => task.id, :responsible_id => person2.id, :old_responsible => nil
     assert_equal person1, task.reload.responsible
     json_response = ActiveSupport::JSON.decode(response.body)
-    assert !json_response['success']
+    refute json_response['success']
   end
   should 'list tasks for user with only view_tasks permission' do
@@ -40,14 +40,14 @@ class TrustedSitesControllerTest &lt; ActionController::TestCase
     @controller.stubs(:add_trusted_site).returns(false)
     post :create, :site => 'new.site.com'
     assert_response :success # it actually failed, but was not redirected
-    assert !assigns(:environment).trusted_sites_for_iframe.include?('new.site.com'), 'Site was included in the trusted_sites!?'
+    refute assigns(:environment).trusted_sites_for_iframe.include?('new.site.com'), 'Site was included in the trusted_sites!?'
   end
   should 'destroy site' do
     post :create, :site => 'todel.site.com'
     delete :destroy, :site => 'todel.site.com'
     assert_redirected_to :action => :index
-    assert ! assigns(:environment).trusted_sites_for_iframe.include?('todel.site.com'), 'Site was not removed from trusted_sites'
+    refute  assigns(:environment).trusted_sites_for_iframe.include?('todel.site.com'), 'Site was not removed from trusted_sites'
   end
   should "get edit" do
@@ -64,7 +64,7 @@ class TrustedSitesControllerTest &lt; ActionController::TestCase
     post :create, :site => 'toedit.site.com'
     post :update, :orig_site => 'toedit.site.com', :site => 'edited.site.com'
     assert_redirected_to :action => :edit
-    assert ! assigns(:environment).trusted_sites_for_iframe.include?('toedit.site.com'), 'Original site found. Site was not updated?'
+    refute  assigns(:environment).trusted_sites_for_iframe.include?('toedit.site.com'), 'Original site found. Site was not updated?'
     assert assigns(:environment).trusted_sites_for_iframe.include?('edited.site.com'), 'New name for site not found. Site was not updated?'
   end
@@ -74,6 +74,6 @@ class TrustedSitesControllerTest &lt; ActionController::TestCase
     post :update, :orig_site => 'toedit.site.com', :site => 'edited.site.com'
     assert_response :success # it actually failed, but was not redirected
     assert assigns(:environment).trusted_sites_for_iframe.include?('toedit.site.com'), 'Original site not found. Site was updated?'
-    assert !assigns(:environment).trusted_sites_for_iframe.include?('edited.site.com'), 'New name for site found. Site was updated?'
+    refute assigns(:environment).trusted_sites_for_iframe.include?('edited.site.com'), 'New name for site found. Site was updated?'
   end
 end
@@ -85,7 +85,7 @@ class UsersControllerTest &lt; ActionController::TestCase
     post :reset_admin_role, :id => person.id, :q => ''
     person.reload
-    assert !person.is_admin?
+    refute person.is_admin?
   end
   should 'activate user' do
@@ -31,7 +31,7 @@ class ManageFriendshipsTest &lt; ActionController::IntegrationTest
     follow_redirect!
     assert assigns(:friends).empty?
-    assert !@person.is_a_friend?(@friend)
-    assert !@friend.is_a_friend?(@person)
+    refute @person.is_a_friend?(@friend)
+    refute @friend.is_a_friend?(@person)
   end
 end
@@ -3,7 +3,7 @@ require &#39;test/unit&#39;
 class VarnishConfTest < Test::Unit::TestCase
    def test_not_use_return_in_varnish_noosfero
-    assert !system('grep "return.*pass" etc/noosfero/varnish-noosfero.vcl')
+    refute system('grep "return.*pass" etc/noosfero/varnish-noosfero.vcl')
   end
 end
@@ -6,7 +6,7 @@ class AbuseComplaintTest &lt; ActiveSupport::TestCase
     reported = fast_create(Profile)
     abuse_complaint = AbuseComplaint.new
-    assert !abuse_complaint.valid?
+    refute abuse_complaint.valid?
     assert abuse_complaint.errors[:reported].any?
     abuse_complaint.reported = reported
@@ -54,6 +54,6 @@ class AbuseComplaintTest &lt; ActiveSupport::TestCase
     reported.destroy
-    assert !AbuseComplaint.find_by_requestor_id(reported_id), "AbuseComplaint still exist!"
+    refute AbuseComplaint.find_by_requestor_id(reported_id), "AbuseComplaint still exist!"
   end
 end
@@ -13,7 +13,7 @@ class AbuseReportTest &lt; ActiveSupport::TestCase
   should 'ensure presence of complaint, reporter and reported' do
     abuse_report = AbuseReport.new(:reason => 'some reason')
-    assert !abuse_report.valid?
+    refute abuse_report.valid?
     assert abuse_report.invalid?(:reporter)
     assert abuse_report.invalid?(:abuse_complaint)
@@ -9,7 +9,7 @@ class ActionTrackerNotificationTest &lt; ActiveSupport::TestCase
     a.profile_id= 1
     a.valid?
-    assert !a.errors[:profile_id.to_s].present?
+    refute a.errors[:profile_id.to_s].present?
   end
   should "have the action tracker" do
@@ -19,7 +19,7 @@ class ActionTrackerNotificationTest &lt; ActiveSupport::TestCase
     a.action_tracker_id= 1
     a.valid?
-    assert !a.errors[:action_tracker_id.to_s].present?
+    refute a.errors[:action_tracker_id.to_s].present?
   end
   should "be associated to Person" do
@@ -58,7 +58,7 @@ class ActionTrackerNotificationTest &lt; ActiveSupport::TestCase
     atn.profile_id = 2
     atn.valid?
-    assert !atn.errors[:action_tracker_id.to_s].present?
+    refute atn.errors[:action_tracker_id.to_s].present?
   end
   should "the action_tracker_id be unique on scope of profile when created by ActionTracker::Record association" do
@@ -23,8 +23,8 @@ class ActsAsHavingSettingsTest &lt; ActiveSupport::TestCase
     block_class = Class.new(Block)
     block = block_class.new
-    assert !block.respond_to?(:limit)
-    assert !block.respond_to?(:limit=)
+    refute block.respond_to?(:limit)
+    refute block.respond_to?(:limit=)
     block_class.settings_items :limit
@@ -89,7 +89,7 @@ class ActsAsHavingSettingsTest &lt; ActiveSupport::TestCase
   should 'setting_changed be false if a setting passed as parameter was not changed' do
     obj = TestClass.new
-    assert !obj.setting_changed?('flag')
+    refute obj.setting_changed?('flag')
   end
   should 'setting_changed be false if a setting passed as parameter was changed with the same value' do
@@ -97,14 +97,14 @@ class ActsAsHavingSettingsTest &lt; ActiveSupport::TestCase
     obj.flag = true
     obj.save
     obj.flag = true
-    assert !obj.setting_changed?('flag')
+    refute obj.setting_changed?('flag')
   end
   should 'setting_changed be false if a setting passed as parameter was not changed but another setting is changed' do
     obj = TestClass.new(:name => 'some name')
     obj.save
     obj.name = 'antoher nme'
-    assert !obj.setting_changed?('flag')
+    refute obj.setting_changed?('flag')
   end
   should 'setting_changed be true for all changed fields' do
@@ -101,7 +101,7 @@ class AddFriendTest &lt; ActiveSupport::TestCase
     task.group_for_person = 'short name'
     task.valid?
-    assert !task.errors[:group_for_person].present?
+    refute task.errors[:group_for_person].present?
   end
   should 'limit "group for friend" number of characters' do
@@ -115,7 +115,7 @@ class AddFriendTest &lt; ActiveSupport::TestCase
     task.group_for_friend = 'short name'
     task.valid?
-    assert !task.errors[:group_for_friend].present?
+    refute task.errors[:group_for_friend].present?
   end
   should 'have target notification message if is organization and not moderated' do
@@ -794,7 +794,7 @@ class ApplicationHelperTest &lt; ActionView::TestCase
     article = fast_create(Article, :name => 'my article')
     response = content_id_to_str(article)
     assert_equal String, response.class
-    assert !response.empty?
+    refute response.empty?
   end
   should 'content_id_to_str return empty string when receiving nil' do
@@ -85,7 +85,7 @@ class ApproveArticleTest &lt; ActiveSupport::TestCase
     community.stubs(:notification_emails).returns(['adm@example.com'])
     a = create(ApproveArticle, :name => '', :article => article, :target => community, :requestor => profile)
-    assert !ActionMailer::Base.deliveries.empty?
+    refute ActionMailer::Base.deliveries.empty?
   end
   should 'not notify target if group is not moderated' do
@@ -167,7 +167,7 @@ class ApproveArticleTest &lt; ActiveSupport::TestCase
     a = create(ApproveArticle, :article => article, :target => community, :requestor => profile)
     a.finish
-    assert !community.has_blog?
+    refute community.has_blog?
     assert_nil article.class.last.parent
   end
@@ -162,7 +162,7 @@ class ApproveCommentTest &lt; ActiveSupport::TestCase
   should 'accept_disabled be false if there is an article associated to task' do
     a = ApproveComment.new(:comment_attributes => @comment.attributes.to_json)
-    assert !a.accept_disabled?
+    refute a.accept_disabled?
   end
   should 'have target notification description' do
@@ -18,7 +18,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
     a.profile = profile
     a.valid?
-    assert !a.errors[:profile_id.to_s].present?
+    refute a.errors[:profile_id.to_s].present?
   end
   should 'require value for name' do
@@ -28,7 +28,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
     a.name = 'my article'
     a.valid?
-    assert !a.errors[:name.to_s].present?
+    refute a.errors[:name.to_s].present?
   end
   should 'limit length of names' do
@@ -38,7 +38,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
     a.name = 'a'*150
     a.valid?
-    assert !a.errors[:name.to_s].present?
+    refute a.errors[:name.to_s].present?
   end
   should 'require value for slug and path if name is filled' do
@@ -53,8 +53,8 @@ class ArticleTest &lt; ActiveSupport::TestCase
   should 'not require value for slug and path if name is blank' do
     a = Article.new
     a.valid?
-    assert !a.errors[:slug.to_s].present?
-    assert !a.errors[:path.to_s].present?
+    refute a.errors[:slug.to_s].present?
+    refute a.errors[:path.to_s].present?
   end
   should 'act as versioned' do
@@ -145,7 +145,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
     a3 = profile.articles.build(:name => 'test')
     a3.parent = a1
     a3.valid?
-    assert !a3.errors[:slug.to_s].present?
+    refute a3.errors[:slug.to_s].present?
     a3.save!
     # cannot add another child of a1 with same slug
@@ -352,11 +352,11 @@ class ArticleTest &lt; ActiveSupport::TestCase
   end
   should 'identify itself as a non-folder' do
-    assert !Article.new.folder?, 'should identify itself as non-folder'
+    refute Article.new.folder?, 'should identify itself as non-folder'
   end
   should 'identify itself as a non-blog' do
-    assert !Article.new.blog?, 'should identify itself as non-blog'
+    refute Article.new.blog?, 'should identify itself as non-blog'
   end
   should 'always display if public content' do
@@ -425,7 +425,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
     assert_equivalent [c2, c3], art.categories(true)
     assert_includes art.categories_including_virtual(true), c1
-    assert !art.categories_including_virtual(true).include?(c4)
+    refute art.categories_including_virtual(true).include?(c4)
   end
   should 'be able to create an article already with categories' do
@@ -459,7 +459,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
   end
   should 'not accept Product category as category' do
-    assert !Article.new.accept_category?(ProductCategory.new)
+    refute Article.new.accept_category?(ProductCategory.new)
   end
   should 'accept published attribute' do
@@ -471,7 +471,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
     profile = fast_create(Profile, :name => 'test profile', :identifier => 'test_profile')
     article = fast_create(Article, :name => 'test article', :profile_id => profile.id, :published => false)
-    assert !article.display_to?(nil)
+    refute article.display_to?(nil)
   end
   should 'say that not member of profile cannot see private article' do
@@ -479,7 +479,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
     article = fast_create(Article, :name => 'test article', :profile_id => profile.id, :published => false)
     person = create_user('test_user').person
-    assert !article.display_to?(person)
+    refute article.display_to?(person)
   end
   should 'say that member user can not see private article' do
@@ -488,7 +488,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
     person = create_user('test_user').person
     profile.affiliate(person, Profile::Roles.member(profile.environment.id))
-    assert !article.display_to?(person)
+    refute article.display_to?(person)
   end
   should 'say that profile admin can see private article' do
@@ -526,7 +526,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
     folder = fast_create(Folder, :name => 'my_intranet', :profile_id => profile.id, :published => false)
     article = fast_create(Article, :name => 'my private article', :profile_id => profile.id, :parent_id => folder.id)
-    assert !article.published?
+    refute article.published?
   end
   should 'save as private' do
@@ -538,7 +538,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
     article.save!
     article.reload
-    assert !article.published?
+    refute article.published?
   end
   should 'not allow friends of private person see the article' do
@@ -549,7 +549,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
     person.save!
     friend.save!
-    assert !article.display_to?(friend)
+    refute article.display_to?(friend)
   end
   should 'display private articles to people who can view private content' do
@@ -661,7 +661,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
     p = create_user('user_blog_test').person
     folder = fast_create(Folder, :name => 'Not Blog', :profile_id => p.id)
     a = fast_create(TextileArticle, :name => 'Not blog post', :profile_id => p.id, :parent_id => folder.id)
-    assert !a.belongs_to_blog?
+    refute a.belongs_to_blog?
   end
   should 'has comments notifier true by default' do
@@ -690,7 +690,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
   should 'moderate_comments? return false if moderate_comments variable is false' do
     a = Article.new
     a.moderate_comments= false
-    assert !a.moderate_comments?
+    refute a.moderate_comments?
   end
   should 'hold hits count' do
@@ -761,7 +761,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
   should 'not be highlighted by default' do
     a = Article.new
-    assert !a.highlighted
+    refute a.highlighted
   end
   should 'get tagged with tag' do
@@ -1009,7 +1009,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
   should 'notifiable is false by default' do
     a = fast_create(Article)
-    assert !a.notifiable?
+    refute a.notifiable?
   end
   should 'not notify activity by default on create' do
@@ -1205,11 +1205,11 @@ class ArticleTest &lt; ActiveSupport::TestCase
   end
   should 'not be a forum by default' do
-    assert !fast_create(Article).forum?
+    refute fast_create(Article).forum?
   end
   should 'not have posts by default' do
-    assert !fast_create(Article).has_posts?
+    refute fast_create(Article).has_posts?
   end
   should 'get article galleries' do
@@ -1243,21 +1243,21 @@ class ArticleTest &lt; ActiveSupport::TestCase
     assert a.errors[:language.to_s].present?
     a.language = 'en'
     a.valid?
-    assert !a.errors[:language.to_s].present?
+    refute a.errors[:language.to_s].present?
   end
   should 'language can be blank' do
     a = build(Article)
     a.valid?
-    assert !a.errors[:language.to_s].present?
+    refute a.errors[:language.to_s].present?
     a.language = ''
     a.valid?
-    assert !a.errors[:language.to_s].present?
+    refute a.errors[:language.to_s].present?
   end
   should 'article is not translatable' do
     a = build(Article)
-    assert !a.translatable?
+    refute a.translatable?
   end
   should 'get native translation' do
@@ -1272,7 +1272,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
     native_article = fast_create(Article, :language => 'pt', :profile_id => fast_create(Profile).id             )
     article_translation = fast_create(Article, :language => 'en', :translation_of_id => native_article.id)
     possible_translations = native_article.possible_translations
-    assert !possible_translations.include?('en')
+    refute possible_translations.include?('en')
     assert possible_translations.include?('pt')
   end
@@ -1286,7 +1286,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
     assert a.errors[:language.to_s].present?
     a.language = 'es'
     a.valid?
-    assert !a.errors[:language.to_s].present?
+    refute a.errors[:language.to_s].present?
   end
   should 'verify if native translation is already in use' do
@@ -1298,7 +1298,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
     assert a.errors[:language.to_s].present?
     a.language = 'es'
     a.valid?
-    assert !a.errors[:language.to_s].present?
+    refute a.errors[:language.to_s].present?
   end
   should 'translation have a language' do
@@ -1309,7 +1309,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
     assert a.errors[:language.to_s].present?
     a.language = 'en'
     a.valid?
-    assert !a.errors[:language.to_s].present?
+    refute a.errors[:language.to_s].present?
   end
   should 'native translation have a language' do
@@ -1387,10 +1387,10 @@ class ArticleTest &lt; ActiveSupport::TestCase
   should 'not list own language as a possible translation if language has changed' do
     a = build(Article, :language => 'pt', :profile_id => fast_create(Profile).id)
-    assert !a.possible_translations.include?('pt')
+    refute a.possible_translations.include?('pt')
     a = fast_create(Article, :language => 'pt', :profile_id => fast_create(Profile).id             )
     a.language = 'en'
-    assert !a.possible_translations.include?('en')
+    refute a.possible_translations.include?('en')
   end
   should 'list own language as a possible translation if language has not changed' do
@@ -1430,7 +1430,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
   end
   should 'tiny mce editor is disabled by default' do
-    assert !Article.new.tiny_mce?
+    refute Article.new.tiny_mce?
   end
   should 'return only folders' do
@@ -1474,19 +1474,19 @@ class ArticleTest &lt; ActiveSupport::TestCase
   should 'not accept uploads if has no parent' do
     child = fast_create(UploadedFile)
-    assert !child.accept_uploads?
+    refute child.accept_uploads?
   end
   should 'not accept uploads if parent is a blog' do
     folder = fast_create(Blog)
     child = fast_create(UploadedFile, :parent_id => folder.id)
-    assert !child.accept_uploads?
+    refute child.accept_uploads?
   end
   should 'not accept uploads if parent is a forum' do
     folder = fast_create(Forum)
     child = fast_create(UploadedFile, :parent_id => folder.id)
-    assert !child.accept_uploads?
+    refute child.accept_uploads?
   end
   should 'get images paths in article body' do
@@ -1684,7 +1684,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
   should 'not crash on allow_edit without a current user' do
     a = build(Article)
     a.allow_members_to_edit = true
-    assert !a.allow_edit?(nil)
+    refute a.allow_edit?(nil)
   end
   should 'allow author to edit topic' do
@@ -1834,13 +1834,13 @@ class ArticleTest &lt; ActiveSupport::TestCase
     p = create_user('user_forum_test').person
     blog = fast_create(Blog, :name => 'Not Forum', :profile_id => p.id)
     a = fast_create(TextileArticle, :name => 'Not forum post', :profile_id => p.id, :parent_id => blog.id)
-    assert !a.belongs_to_forum?
+    refute a.belongs_to_forum?
   end
   should 'not belongs to forum if do not have a parent' do
     p = create_user('user_forum_test').person
     a = fast_create(TextileArticle, :name => 'Orphan post', :profile_id => p.id)
-    assert !a.belongs_to_forum?
+    refute a.belongs_to_forum?
   end
   should 'save image on create article' do
@@ -1998,7 +1998,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
   should 'display_filter do not show person private content to non friends' do
     user = create_user('someuser').person
     p = fast_create(Person)
-    assert !p.is_a_friend?(user)
+    refute p.is_a_friend?(user)
     user.stubs(:has_permission?).with(:view_private_content, p).returns(false)
     Article.delete_all
     a = fast_create(Article, :published => false, :show_to_followers => true, :profile_id => p.id)
@@ -2010,7 +2010,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
   should 'display_filter do not show community private content to non members' do
     user = create_user('someuser').person
     p = fast_create(Community)
-    assert !user.is_member_of?(p)
+    refute user.is_member_of?(p)
     user.stubs(:has_permission?).with(:view_private_content, p).returns(false)
     Article.delete_all
     a = fast_create(Article, :published => false, :show_to_followers => true, :profile_id => p.id)
@@ -2022,7 +2022,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
   should 'display_filter show community public content even it has no followers defined' do
     user = create_user('someuser').person
     p = fast_create(Community)
-    assert !user.is_member_of?(p)
+    refute user.is_member_of?(p)
     user.stubs(:has_permission?).with(:view_private_content, p).returns(false)
     Article.delete_all
     a = fast_create(Article, :published => true, :show_to_followers => true, :profile_id => p.id)
@@ -2034,7 +2034,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
   should 'display_filter show person public content even it has no followers defined' do
     user = create_user('someuser').person
     p = fast_create(Community)
-    assert !user.is_a_friend?(p)
+    refute user.is_a_friend?(p)
     user.stubs(:has_permission?).with(:view_private_content, p).returns(false)
     Article.delete_all
     a = fast_create(Article, :published => true, :show_to_followers => true, :profile_id => p.id)
@@ -2046,8 +2046,8 @@ class ArticleTest &lt; ActiveSupport::TestCase
   should 'display_filter do not show person private content to non friends passing nil as profile parameter' do
     user = create_user('someuser').person
     p = fast_create(Person)
-    assert !p.is_a_friend?(user)
-    assert !user.is_admin?
+    refute p.is_a_friend?(user)
+    refute user.is_admin?
     Article.delete_all
     fast_create(Article, :published => false, :profile_id => p.id)
     assert_equal [], Article.display_filter(user, nil)
@@ -2056,8 +2056,8 @@ class ArticleTest &lt; ActiveSupport::TestCase
   should 'display_filter show person public content to non friends passing nil as profile parameter' do
     user = create_user('someuser').person
     p = fast_create(Person)
-    assert !p.is_a_friend?(user)
-    assert !user.is_admin?
+    refute p.is_a_friend?(user)
+    refute user.is_admin?
     Article.delete_all
     a1 = fast_create(Article, :profile_id => p.id)
     a2 = fast_create(Article)
@@ -2067,7 +2067,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
   should 'display_filter do not show community private content to non members passing nil as profile parameter' do
     user = create_user('someuser').person
     p = fast_create(Community)
-    assert !user.is_member_of?(p)
+    refute user.is_member_of?(p)
     Article.delete_all
     fast_create(Article, :published => false, :profile_id => p.id)
     assert_equal [], Article.display_filter(user, nil)
@@ -2076,7 +2076,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
   should 'display_filter show community public content to non members passing nil as profile parameter' do
     user = create_user('someuser').person
     p = fast_create(Community)
-    assert !user.is_member_of?(p)
+    refute user.is_member_of?(p)
     Article.delete_all
     a1 = fast_create(Article, :profile_id => p.id)
     a2 = fast_create(Article)
@@ -2099,7 +2099,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
   should 'display_filter not show public content of private community for non members' do
     user = create_user('someuser').person
     p = fast_create(Community, :public_profile => false)
-    assert !user.is_member_of?(p)
+    refute user.is_member_of?(p)
     user.stubs(:has_permission?).with(:view_private_content, p).returns(false)
     Article.delete_all
     a = fast_create(Article, :published => true, :profile_id => p.id)
@@ -2141,7 +2141,7 @@ class ArticleTest &lt; ActiveSupport::TestCase
   should 'display_filter not show public content of private person for non friends' do
     user = create_user('someuser').person
     p = fast_create(Person, :public_profile => false)
-    assert !user.is_a_friend?(p)
+    refute user.is_a_friend?(p)
     user.stubs(:has_permission?).with(:view_private_content, p).returns(false)
     Article.delete_all
     a = fast_create(Article, :published => true, :profile_id => p.id)
@@ -238,11 +238,11 @@ class BlockTest &lt; ActiveSupport::TestCase
     block = MyBlock.new
     assert block.visible?({:value => 2})
-    assert !block.visible?({:value => 3})
+    refute block.visible?({:value => 3})
   end
   should 'not be embedable by default' do
-    assert !Block.new.embedable?
+    refute Block.new.embedable?
   end
   should 'generate embed code' do
@@ -275,13 +275,13 @@ class BlockTest &lt; ActiveSupport::TestCase
   should 'do not display block to logged users for display_user = not_logged' do
     block = Block.new
     block.display_user = 'not_logged'
-    assert !block.display_to_user?(User.new)
+    refute block.display_to_user?(User.new)
   end
   should 'do not display block to not logged users for display_user = logged' do
     block = Block.new
     block.display_user = 'logged'
-    assert !block.display_to_user?(nil)
+    refute block.display_to_user?(nil)
   end
   should 'display block to not logged users for display_user = not_logged' do
@@ -293,7 +293,7 @@ class BlockTest &lt; ActiveSupport::TestCase
   should 'not be visible if display_to_user? is false' do
     block = Block.new
     block.expects(:display_to_user?).once.returns(false)
-    assert !block.visible?({})
+    refute block.visible?({})
   end
   should 'accept user as parameter on cache_key without change its value' do
@@ -322,7 +322,7 @@ class BlockTest &lt; ActiveSupport::TestCase
     block = create(Block, :box_id => box.id)
     block.display_user = 'followers'
     block.save!
-    assert !block.display_to_user?(user.person)
+    refute block.display_to_user?(user.person)
   end
   should 'display block to friends of person for display_user = friends' do
@@ -346,7 +346,7 @@ class BlockTest &lt; ActiveSupport::TestCase
     block = create(Block, :box_id => box.id)
     block.display_user = 'followers'
     block.save!
-    assert !block.display_to_user?(person_friend)
+    refute block.display_to_user?(person_friend)
   end
   should 'get limit as a number when limit is string' do
@@ -118,7 +118,7 @@ class BlogTest &lt; ActiveSupport::TestCase
     p = create_user('testuser').person
     blog = build(Blog, :profile => p, :name => 'Blog test', :external_feed_builder => {:enabled => true})
     blog.save
-    assert ! blog.valid?
+    refute  blog.valid?
   end
   should 'remove external feed when removing blog' do
@@ -178,15 +178,15 @@ class BlogTest &lt; ActiveSupport::TestCase
     blog.visualization_format = 'short'
     blog.valid?
-    assert !blog.errors[:visualization_format.to_s].present?
+    refute blog.errors[:visualization_format.to_s].present?
     blog.visualization_format = 'full'
     blog.valid?
-    assert !blog.errors[:visualization_format.to_s].present?
+    refute blog.errors[:visualization_format.to_s].present?
     blog.visualization_format = 'compact'
     blog.valid?
-    assert !blog.errors[:visualization_format.to_s].present?
+    refute blog.errors[:visualization_format.to_s].present?
   end
   should 'have posts' do
@@ -195,8 +195,8 @@ class BlogTest &lt; ActiveSupport::TestCase
   should 'not display posts in current language by default' do
     blog = Blog.new
-    assert !blog.display_posts_in_current_language
-    assert !blog.display_posts_in_current_language?
+    refute blog.display_posts_in_current_language
+    refute blog.display_posts_in_current_language?
   end
   should 'update display posts in current language setting' do
@@ -205,8 +205,8 @@ class BlogTest &lt; ActiveSupport::TestCase
     blog = p.blog
     blog.display_posts_in_current_language = false
     assert blog.save! && blog.reload
-    assert !blog.reload.display_posts_in_current_language
-    assert !blog.reload.display_posts_in_current_language?
+    refute blog.reload.display_posts_in_current_language
+    refute blog.reload.display_posts_in_current_language?
   end
   #FIXME This should be used until there is a migration to fix all blogs that
@@ -223,7 +223,7 @@ class BlogTest &lt; ActiveSupport::TestCase
   should 'not accept uploads' do
     folder = fast_create(Blog)
-    assert !folder.accept_uploads?
+    refute folder.accept_uploads?
   end
   should 'know when blog has or when has no posts' do
@@ -231,7 +231,7 @@ class BlogTest &lt; ActiveSupport::TestCase
     blog =  Blog.create!(:profile => p, :name => 'Blog test')
     assert blog.empty?
     fast_create(TextileArticle, :parent_id => blog.id)
-    assert ! blog.empty?
+    refute  blog.empty?
   end
   should 'set cover image' do
@@ -18,15 +18,15 @@ class BoxTest &lt; ActiveSupport::TestCase
   should 'list allowed blocks for center box' do
     blocks = Box.new.tap { |b| b.position = 1 }.acceptable_blocks
-    assert !blocks.include?('.block')
-    assert !blocks.include?('.disabled-enterprise-message-block')
-    assert !blocks.include?('.featured-products-block')
-    assert !blocks.include?('.products-block')
-    assert !blocks.include?('.profile-info-block')
-    assert !blocks.include?('.profile-list-block')
-    assert !blocks.include?('.profile-search-block')
-    assert !blocks.include?('.slideshow-block')
-    assert !blocks.include?('.location-block')
+    refute blocks.include?('.block')
+    refute blocks.include?('.disabled-enterprise-message-block')
+    refute blocks.include?('.featured-products-block')
+    refute blocks.include?('.products-block')
+    refute blocks.include?('.profile-info-block')
+    refute blocks.include?('.profile-list-block')
+    refute blocks.include?('.profile-search-block')
+    refute blocks.include?('.slideshow-block')
+    refute blocks.include?('.location-block')
     assert blocks.include?('.article-block')
     assert blocks.include?('.blog-archives-block')
@@ -51,9 +51,9 @@ class BoxTest &lt; ActiveSupport::TestCase
   should 'list allowed blocks for box at position 2' do
     blocks = Box.new.tap { |b| b.position = 2 }.acceptable_blocks
-    assert !blocks.include?('.main-block')
-    assert !blocks.include?('.block')
-    assert !blocks.include?('.profile-list-block')
+    refute blocks.include?('.main-block')
+    refute blocks.include?('.block')
+    refute blocks.include?('.profile-list-block')
     assert blocks.include?('.article-block')
     assert blocks.include?('.blog-archives-block')
@@ -129,7 +129,7 @@ class BoxTest &lt; ActiveSupport::TestCase
     assert blocks.include?('box-test_plugin-block')
     blocks = build(Box, :position => 1, :owner => Community.new).acceptable_blocks
-    assert !blocks.include?('box-test_plugin-block')
+    refute blocks.include?('box-test_plugin-block')
   end
   should 'list only boxes with a postion greater than zero' do
@@ -106,7 +106,7 @@ class BoxesHelperTest &lt; ActionView::TestCase
   end
   should 'add invisible CSS class name for invisible blocks' do
-    assert !block_css_classes(build(Block, :display => 'always')).split.any? { |item| item == 'invisible-block'}
+    refute block_css_classes(build(Block, :display => 'always')).split.any? { |item| item == 'invisible-block'}
     assert block_css_classes(build(Block, :display => 'never')).split.any? { |item| item == 'invisible-block'}
   end
@@ -17,7 +17,7 @@ class CategoryTest &lt; ActiveSupport::TestCase
   def test_mandatory_field_name
     c = Category.new
     c.name = 'product category for testing'
-    assert !c.valid?
+    refute c.valid?
     assert c.errors[:environment_id.to_s].present?
   end
@@ -75,14 +75,14 @@ class CategoryTest &lt; ActiveSupport::TestCase
     sub_cat = build(Category, :name => 'subcategory_name')
     sub_cat.stubs(:parent).returns(cat)
     sub_cat.parent = cat
-    assert !sub_cat.top_level?
+    refute sub_cat.top_level?
   end
   def test_leaf
     cat = build(Category, :name => 'category_name')
     sub_cat = build(Category, :name => 'subcategory_name')
     cat.stubs(:children).returns([sub_cat])
-    assert !cat.leaf?
+    refute cat.leaf?
   end
   def test_not_leaf
@@ -132,7 +132,7 @@ class CategoryTest &lt; ActiveSupport::TestCase
     c1 = create(Category, :environment_id => @env.id)
     c2 = build(Category, :slug => c1.slug, :environment_id => @env.id)
-    assert !c2.valid?
+    refute c2.valid?
     assert c2.errors[:slug.to_s].present?
   end
@@ -14,7 +14,7 @@ class CertifierTest &lt; ActiveSupport::TestCase
   should 'environment is mandatory' do
     certifier = Certifier.new(:name => 'Certifier without environment')
-    assert !certifier.valid?
+    refute certifier.valid?
     certifier.environment = fast_create(Environment)
     assert certifier.valid?
@@ -34,7 +34,7 @@ class CertifierTest &lt; ActiveSupport::TestCase
   should 'name is mandatory' do
     env_one = fast_create(Environment)
     certifier = env_one.certifiers.new
-    assert !certifier.valid?
+    refute certifier.valid?
     certifier.name = 'Certifier name'
     assert certifier.valid?
@@ -16,7 +16,7 @@ class ChangePasswordTest &lt; ActiveSupport::TestCase
     change.status = Task::Status::FINISHED
     change.password = 'right'
     change.password_confirmation = 'wrong'
-    assert !change.valid?
+    refute change.valid?
     assert change.errors[:password.to_s].present?
@@ -71,7 +71,7 @@ class CommentHelperTest &lt; ActiveSupport::TestCase
   should 'do not return link for report abuse action when comment has no author' do
     comment = Comment.new
     link = link_for_report_abuse(comment)
-    assert !link
+    refute link
   end
   should 'return link for mark comment as spam' do
@@ -328,7 +328,7 @@ class CommentTest &lt; ActiveSupport::TestCase
   should 'be able to reject a comment' do
     c = Comment.new
-    assert !c.rejected?
+    refute c.rejected?
     c.reject!
     assert c.rejected?
@@ -408,15 +408,15 @@ class CommentTest &lt; ActiveSupport::TestCase
     c = Comment.new
     c.spam = true
     assert c.spam?
-    assert !c.ham?
+    refute c.ham?
     c.spam = false
     assert c.ham?
-    assert !c.spam?
+    refute c.spam?
     c.spam = nil
-    assert !c.spam?
-    assert !c.ham?
+    refute c.spam?
+    refute c.ham?
   end
   should 'be able to select non-spam comments' do
@@ -547,7 +547,7 @@ class CommentTest &lt; ActiveSupport::TestCase
     article = Article.new
     comment = build(Comment, :article => article)
-    assert !comment.need_moderation?
+    refute comment.need_moderation?
   end
   should 'not need moderation if the comment author is the article author' do
@@ -560,7 +560,7 @@ class CommentTest &lt; ActiveSupport::TestCase
     comment = build(Comment, :article => article)
     comment.stubs(:author).returns(author)
-    assert !comment.need_moderation?
+    refute comment.need_moderation?
   end
   should 'need moderation if article is moderated and the comment has no author' do
@@ -589,7 +589,7 @@ class CommentTest &lt; ActiveSupport::TestCase
   should 'not be able to destroy comment without user' do
     comment = Comment.new
-    assert !comment.can_be_destroyed_by?(nil)
+    refute comment.can_be_destroyed_by?(nil)
   end
   should 'not be able to destroy comment' do
@@ -599,7 +599,7 @@ class CommentTest &lt; ActiveSupport::TestCase
     comment = build(Comment, :article => article)
     user.expects(:has_permission?).with(:moderate_comments, profile).returns(false)
-    assert !comment.can_be_destroyed_by?(user)
+    refute comment.can_be_destroyed_by?(user)
   end
   should 'be able to destroy comment if is the author' do
@@ -631,7 +631,7 @@ class CommentTest &lt; ActiveSupport::TestCase
   should 'not be able to mark comment as spam without user' do
     comment = Comment.new
-    assert !comment.can_be_marked_as_spam_by?(nil)
+    refute comment.can_be_marked_as_spam_by?(nil)
   end
   should 'not be able to mark comment as spam' do
@@ -641,7 +641,7 @@ class CommentTest &lt; ActiveSupport::TestCase
     comment = build(Comment, :article => article)
     user.expects(:has_permission?).with(:moderate_comments, profile).returns(false)
-    assert !comment.can_be_marked_as_spam_by?(user)
+    refute comment.can_be_marked_as_spam_by?(user)
   end
   should 'be able to mark comment as spam if is the profile' do
@@ -666,14 +666,14 @@ class CommentTest &lt; ActiveSupport::TestCase
   should 'not be able to update comment without user' do
     comment = Comment.new
-    assert !comment.can_be_updated_by?(nil)
+    refute comment.can_be_updated_by?(nil)
   end
   should 'not be able to update comment' do
     user = Person.new
     comment = Comment.new
-    assert !comment.can_be_updated_by?(user)
+    refute comment.can_be_updated_by?(user)
   end
   should 'be able to update comment if is the author' do
@@ -714,10 +714,10 @@ class CommentTest &lt; ActiveSupport::TestCase
   should 'like a comment' do
     comment = create_comment
     person = create_user('voter').person
-    assert !comment.voted_by?(person, true)
+    refute comment.voted_by?(person, true)
     person.vote_for(comment)
     assert comment.voted_by?(person, true)
-    assert !comment.voted_by?(person, false)
+    refute comment.voted_by?(person, false)
   end
   should 'count voters for' do
@@ -28,9 +28,9 @@ class CommunityTest &lt; ActiveSupport::TestCase
   should 'create default set of blocks' do
     c = create(Community, :environment => Environment.default, :name => 'my new community')
-    assert !c.boxes[0].blocks.empty?, 'person must have blocks in area 1'
-    assert !c.boxes[1].blocks.empty?, 'person must have blocks in area 2'
-    assert !c.boxes[2].blocks.empty?, 'person must have blocks in area 3'
+    refute c.boxes[0].blocks.empty?, 'person must have blocks in area 1'
+    refute c.boxes[1].blocks.empty?, 'person must have blocks in area 2'
+    refute c.boxes[2].blocks.empty?, 'person must have blocks in area 3'
   end
   should 'create a default set of articles' do
@@ -82,7 +82,7 @@ class CommunityTest &lt; ActiveSupport::TestCase
     c.destroy
     relationships.each do |i|
-      assert !RoleAssignment.exists?(i.id)
+      refute RoleAssignment.exists?(i.id)
     end
   end
@@ -118,24 +118,24 @@ class CommunityTest &lt; ActiveSupport::TestCase
     e = Environment.default
     e.expects(:required_community_fields).returns(['contact_phone']).at_least_once
     community = build(Community, :name => 'My community', :environment => e)
-    assert ! community.valid?
+    refute  community.valid?
     assert community.errors[:contact_phone.to_s].present?
     community.contact_phone = '99999'
     community.valid?
-    assert ! community.errors[:contact_phone.to_s].present?
+    refute  community.errors[:contact_phone.to_s].present?
   end
   should 'not require fields if community is a template' do
     e = Environment.default
     e.expects(:required_community_fields).returns(['contact_phone']).at_least_once
     community = build(Community, :name => 'My community', :environment => e)
-    assert ! community.valid?
+    refute  community.valid?
     assert community.errors[:contact_phone.to_s].present?
     community.is_template = true
     community.valid?
-    assert ! community.errors[:contact_phone.to_s].present?
+    refute  community.errors[:contact_phone.to_s].present?
   end
   should 'return newest text articles as news' do
@@ -262,11 +262,11 @@ class CommunityTest &lt; ActiveSupport::TestCase
     p2 = fast_create(Person)
     p3 = fast_create(Person)
-    assert !p1.is_member_of?(c)
+    refute p1.is_member_of?(c)
     c.add_member(p1)
     assert p1.is_member_of?(c)
-    assert !p3.is_member_of?(c)
+    refute p3.is_member_of?(c)
     c.add_member(p3)
     assert p3.is_member_of?(c)
@@ -288,7 +288,7 @@ class CommunityTest &lt; ActiveSupport::TestCase
       process_delayed_job_queue
       community.add_member(p3)
       assert p1.is_member_of?(community)
-      assert !p2.is_member_of?(community)
+      refute p2.is_member_of?(community)
       assert p3.is_member_of?(community)
       process_delayed_job_queue
     end
@@ -409,14 +409,14 @@ class CommunityTest &lt; ActiveSupport::TestCase
     member = create_user('memberuser').person
     c.add_member(member)
-    assert !c.is_admin?(member)
+    refute c.is_admin?(member)
   end
   should 'a moderator user not be a community admin' do
     c = fast_create(Community, :name => 'my test profile', :identifier => 'mytestprofile')
     moderator = create_user('moderatoruser').person
     c.add_moderator(moderator)
-    assert !c.is_admin?(moderator)
+    refute c.is_admin?(moderator)
   end
 end
@@ -4,16 +4,16 @@ class ContactTest &lt; ActiveSupport::TestCase
   should 'validates required fields' do
     contact = Contact.new
-    assert !contact.valid?
+    refute contact.valid?
     contact.subject = 'Hi'
-    assert !contact.valid?
+    refute contact.valid?
     contact.name = 'john'
-    assert !contact.valid?
+    refute contact.valid?
     contact.email = 'visitor@invalid.com'
-    assert !contact.valid?
+    refute contact.valid?
     contact.message = 'Hi, all'
     assert contact.valid?
@@ -40,8 +40,8 @@ class ContactTest &lt; ActiveSupport::TestCase
   should 'not deliver message if contact is invalid' do
     ent = fast_create(Enterprise, :name => 'my enterprise', :identifier => 'myent')
     c = Contact.new(:name => 'john', :subject => 'hi', :message => 'hi, all', :dest => ent)
-    assert !c.valid?
-    assert !c.deliver
+    refute c.valid?
+    refute c.deliver
   end
   should 'use sender name and environment noreply_email on from' do
@@ -23,7 +23,7 @@ class CreateCommunityTest &lt; ActiveSupport::TestCase
     assert task.errors[:requestor_id.to_s].present?
     task.requestor = person
     task.valid?
-    assert !task.errors[:requestor_id.to_s].present?
+    refute task.errors[:requestor_id.to_s].present?
   end
   should 'actually create a community when finishing the task and associate the task requestor as its admin' do
@@ -26,7 +26,7 @@ class CreateEnterpriseTest &lt; ActiveSupport::TestCase
     task.foundation_year = 2006
     task.valid?
-    assert !task.errors[:foundation_year.to_s].present?
+    refute task.errors[:foundation_year.to_s].present?
   end
   should 'require a requestor' do
@@ -37,7 +37,7 @@ class CreateEnterpriseTest &lt; ActiveSupport::TestCase
     assert task.errors[:requestor_id.to_s].present?
     task.requestor = create_user('testuser').person
     task.valid?
-    assert !task.errors[:requestor_id.to_s].present?
+    refute task.errors[:requestor_id.to_s].present?
   end
   should 'require a target (validator organization)' do
@@ -49,7 +49,7 @@ class CreateEnterpriseTest &lt; ActiveSupport::TestCase
     task.target = Organization.create!(:name => "My organization", :identifier => 'validator_organization')
     task.valid?
-    assert !task.errors[:target_id.to_s].present?
+    refute task.errors[:target_id.to_s].present?
   end
   should 'require that the informed target (validator organization) actually validates for the chosen region' do
@@ -69,7 +69,7 @@ class CreateEnterpriseTest &lt; ActiveSupport::TestCase
     region.validators << validator
     task.valid?
-    assert !task.errors[:target.to_s].present?
+    refute task.errors[:target.to_s].present?
   end
   should 'cancel task when rejected ' do
@@ -84,7 +84,7 @@ class CreateEnterpriseTest &lt; ActiveSupport::TestCase
     task.reject_explanation = nil
     task.valid?
-    assert !task.errors[:reject_explanation.to_s].present?
+    refute task.errors[:reject_explanation.to_s].present?
     task.status = Task::Status::CANCELLED
     task.valid?
@@ -92,7 +92,7 @@ class CreateEnterpriseTest &lt; ActiveSupport::TestCase
     task.reject_explanation = 'bla bla bla'
     task.valid?
-    assert !task.errors[:reject_explanation.to_s].present?
+    refute task.errors[:reject_explanation.to_s].present?
   end
   should 'finish task when approved' do
@@ -130,7 +130,7 @@ class CreateEnterpriseTest &lt; ActiveSupport::TestCase
     task.finish
-    assert !enterprise.new_record?
+    refute enterprise.new_record?
     assert_equal person.user, enterprise.user
     assert_equal environment, enterprise.environment
@@ -167,7 +167,7 @@ class CreateEnterpriseTest &lt; ActiveSupport::TestCase
     task.finish
-    assert !enterprise.new_record?
+    refute enterprise.new_record?
     assert_equal person.user, enterprise.user
     assert_equal environment, enterprise.environment
@@ -203,7 +203,7 @@ class CreateEnterpriseTest &lt; ActiveSupport::TestCase
       :requestor_id => person.id,
     })
-    assert !task.valid? && task.valid_before_selecting_target?
+    refute task.valid? && task.valid_before_selecting_target?
     task.target = validator
     assert task.valid?
@@ -19,7 +19,7 @@ class DisabledEnterpriseMessageBlockTest &lt; ActiveSupport::TestCase
   end
   should 'not be editable' do
-    assert !DisabledEnterpriseMessageBlock.new.editable?
+    refute DisabledEnterpriseMessageBlock.new.editable?
   end
 end
@@ -22,7 +22,7 @@ class DomainTest &lt; ActiveSupport::TestCase
   should 'allow domains with dot' do
     domain = build(Domain, :name => 'test.org')
     domain.valid?
-    assert !domain.errors[:name.to_s].present?
+    refute domain.errors[:name.to_s].present?
   end
   should 'not allow domains with upper cased letters' do
@@ -34,13 +34,13 @@ class DomainTest &lt; ActiveSupport::TestCase
   should 'allow domains with hyphen' do
     domain = build(Domain, :name => 'test-domain.org')
     domain.valid?
-    assert !domain.errors[:name.to_s].present?
+    refute domain.errors[:name.to_s].present?
   end
   should 'allow domains with underscore' do
     domain = build(Domain, :name => 'test_domain.org')
     domain.valid?
-    assert !domain.errors[:name.to_s].present?
+    refute domain.errors[:name.to_s].present?
   end
   def test_owner
@@ -63,7 +63,7 @@ class DomainTest &lt; ActiveSupport::TestCase
     d.name = 'example.net'
     d.valid?
-    assert !d.errors[:name.to_s].present?
+    refute d.errors[:name.to_s].present?
   end
   def test_find_by_name
@@ -71,8 +71,8 @@ class DomainTest &lt; ActiveSupport::TestCase
     fast_create(Domain, :name => 'example.net')
     d1 = Domain.find_by_name('example.net')
     d2 =  Domain.find_by_name('www.example.net')
-    assert !d1.nil?
-    assert !d2.nil?
+    refute d1.nil?
+    refute d2.nil?
     assert d1 == d2
   end
@@ -81,7 +81,7 @@ class DomainTest &lt; ActiveSupport::TestCase
     assert create(Domain, :name => 'example.net')
     d = build(Domain, :name => 'example.net')
-    assert !d.valid?
+    refute d.valid?
     assert d.errors[:name.to_s].present?
   end
@@ -24,7 +24,7 @@ class EmailActivationTest &lt; ActiveSupport::TestCase
   should 'enable user email when finish' do
     ze = create_user('zezinho', :environment_id => Environment.default.id)
-    assert !ze.enable_email
+    refute ze.enable_email
     task = fast_create(EmailActivation, :requestor_id => ze.person.id, :target_id => Environment.default.id)
     task.finish
     ze.reload
@@ -33,7 +33,7 @@ class EmailActivationTest &lt; ActiveSupport::TestCase
   should 'deliver email after enabling mailbox' do
     ze = create_user('zezinho', :environment_id => Environment.default.id, :email => 'ze@example.com')
-    assert !ze.enable_email
+    refute ze.enable_email
     task = EmailActivation.create!(:requestor => ze.person, :target => Environment.default)
     task.finish
@@ -46,7 +46,7 @@ class EmailActivationTest &lt; ActiveSupport::TestCase
     assert task.save!
     another_task = EmailActivation.new(:requestor => ze.person, :target => Environment.default)
-    assert !another_task.save, "Should not be able to save another task"
+    refute another_task.save, "Should not be able to save another task"
   end
   should 'deliver activation email notification' do
@@ -26,7 +26,7 @@ class EnterpriseActivationTest &lt; ActiveSupport::TestCase
     ent = Enterprise.create!(:name => 'my enterprise', :identifier => 'myent')
     t.enterprise = ent
     t.valid?
-    assert !t.errors[:enterprise].any?, "must validate after enterprise is set"
+    refute t.errors[:enterprise].any?, "must validate after enterprise is set"
   end
   should 'activate enterprise when finished' do
@@ -25,15 +25,15 @@ class EnterpriseTest &lt; ActiveSupport::TestCase
     p.identifier = 'rightformat2007'
     p.valid?
-    assert ! p.errors[:identifier.to_s].present?
+    refute  p.errors[:identifier.to_s].present?
     p.identifier = 'rightformat'
     p.valid?
-    assert ! p.errors[:identifier.to_s].present?
+    refute  p.errors[:identifier.to_s].present?
     p.identifier = 'right_format'
     p.valid?
-    assert ! p.errors[:identifier.to_s].present?
+    refute  p.errors[:identifier.to_s].present?
   end
   def test_has_domains
@@ -83,9 +83,9 @@ class EnterpriseTest &lt; ActiveSupport::TestCase
   should 'create default set of blocks' do
     e = create(Enterprise, :name => 'my new community', :identifier => 'mynewcommunity')
-    assert !e.boxes[0].blocks.empty?, 'enterprise must have blocks in area 1'
-    assert !e.boxes[1].blocks.empty?, 'enterprise must have blocks in area 2'
-    assert !e.boxes[2].blocks.empty?, 'enterprise must have blocks in area 3'
+    refute e.boxes[0].blocks.empty?, 'enterprise must have blocks in area 1'
+    refute e.boxes[1].blocks.empty?, 'enterprise must have blocks in area 2'
+    refute e.boxes[2].blocks.empty?, 'enterprise must have blocks in area 3'
   end
   should 'allow to add new members if has no members' do
@@ -147,7 +147,7 @@ class EnterpriseTest &lt; ActiveSupport::TestCase
     ent.data[:blocked] = true
     ent.save
     ent.unblock
-    assert !Enterprise.find(ent.id).blocked?
+    refute Enterprise.find(ent.id).blocked?
   end
   should 'enable and make user admin' do
@@ -302,29 +302,29 @@ class EnterpriseTest &lt; ActiveSupport::TestCase
     e = Environment.default
     e.expects(:required_enterprise_fields).returns(['contact_phone']).at_least_once
     enterprise = build(Enterprise, :environment => e)
-    assert ! enterprise.valid?
+    refute  enterprise.valid?
     assert enterprise.errors[:contact_phone.to_s].present?
     enterprise.contact_phone = '99999'
     enterprise.valid?
-    assert ! enterprise.errors[:contact_phone.to_s].present?
+    refute  enterprise.errors[:contact_phone.to_s].present?
   end
   should 'not require fields if enterprise is a template' do
     e = Environment.default
     e.expects(:required_enterprise_fields).returns(['contact_phone']).at_least_once
     enterprise = build(Enterprise, :environment => e)
-    assert ! enterprise.valid?
+    refute  enterprise.valid?
     assert enterprise.errors[:contact_phone.to_s].present?
     enterprise.is_template = true
     enterprise.valid?
-    assert ! enterprise.errors[:contact_phone.to_s].present?
+    refute  enterprise.errors[:contact_phone.to_s].present?
   end
   should 'enable contact' do
     enterprise = build(Enterprise, :enable_contact_us => false)
-    assert !enterprise.enable_contact?
+    refute enterprise.enable_contact?
     enterprise.enable_contact_us = true
     assert enterprise.enable_contact?
   end
@@ -370,7 +370,7 @@ class EnterpriseTest &lt; ActiveSupport::TestCase
     e.disable('enterprises_are_validated_when_created')
     e.save
     enterprise = create(Enterprise, :name => 'test enteprise', :identifier => 'test_ent2')
-    assert !enterprise.validated
+    refute enterprise.validated
   end
   should 'have inactive_template when creating enterprise and feature is enabled' do
@@ -437,11 +437,11 @@ class EnterpriseTest &lt; ActiveSupport::TestCase
     p2 = fast_create(Person)
     p3 = fast_create(Person)
-    assert !p1.is_member_of?(e)
+    refute p1.is_member_of?(e)
     e.add_member(p1)
     assert p1.is_member_of?(e)
-    assert !p3.is_member_of?(e)
+    refute p3.is_member_of?(e)
     e.add_member(p3)
     assert p3.is_member_of?(e)
@@ -514,14 +514,14 @@ class EnterpriseTest &lt; ActiveSupport::TestCase
     member = create_user('memberuser').person
     c.add_member(member)
-    assert !c.is_admin?(member)
+    refute c.is_admin?(member)
   end
   should 'a moderator user not be a community admin' do
     c = fast_create(Enterprise, :name => 'my test profile', :identifier => 'mytestprofile')
     moderator = create_user('moderatoruser').person
     c.add_moderator(moderator)
-    assert !c.is_admin?(moderator)
+    refute c.is_admin?(moderator)
   end
@@ -20,7 +20,7 @@ class EnvironmentMailingTest &lt; ActiveSupport::TestCase
     mailing.source_id = environment.id
     mailing.valid?
-    assert !mailing.errors[:source_id].any?
+    refute mailing.errors[:source_id].any?
   end
   should 'return environment name' do
@@ -95,7 +95,7 @@ class EnvironmentMailingTest &lt; ActiveSupport::TestCase
     mailing = create_mailing(environment, :person => person_1)
     process_delayed_job_queue
-    assert !mailing.mailing_sents.find_by_person_id(recipient.id)
+    refute mailing.mailing_sents.find_by_person_id(recipient.id)
   end
   def new_mailing(environment)
@@ -11,7 +11,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     vc2 = build(Environment, :name => 'Another Test Community')
     vc2.is_default = true
-    assert !vc2.valid?
+    refute vc2.valid?
     assert vc2.errors[:is_default.to_s].present?
     assert_equal vc, Environment.default
@@ -38,7 +38,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     v.enable('feature1', false)
     assert v.enabled?('feature1')
     v.disable('feature1', false)
-    assert !v.enabled?('feature1')
+    refute v.enabled?('feature1')
   end
   def test_enabled_features
@@ -50,7 +50,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
   def test_enabled_features_no_features_enabled
     v = fast_create(Environment)
-    assert !v.enabled?('feature1') && !v.enabled?('feature2') && !v.enabled?('feature3')
+    refute v.enabled?('feature1') && !v.enabled?('feature2') && !v.enabled?('feature3')
   end
   def test_default_enabled_features_are_enabled
@@ -66,7 +66,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     assert v.errors[:name.to_s].present?
     v.name = 'blablabla'
     v.valid?
-    assert !v.errors[:name.to_s].present?
+    refute v.errors[:name.to_s].present?
   end
   def test_terms_of_use
@@ -84,12 +84,12 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     v.terms_of_use = ""
     assert v.save
     v.reload
-    assert !v.has_terms_of_use?
+    refute v.has_terms_of_use?
   end
   def test_has_terms_of_use
     v = Environment.new
-    assert !v.has_terms_of_use?
+    refute v.has_terms_of_use?
     v.terms_of_use = 'some terms of use'
     assert v.has_terms_of_use?
   end
@@ -105,11 +105,11 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
   def test_has_terms_of_enterprise_use
     v = Environment.new
-    assert !v.has_terms_of_enterprise_use?
+    refute v.has_terms_of_enterprise_use?
     v.terms_of_enterprise_use = 'some terms of enterprise use'
     assert v.has_terms_of_enterprise_use?
     v.terms_of_enterprise_use = ''
-    assert !v.has_terms_of_enterprise_use?
+    refute v.has_terms_of_enterprise_use?
   end
   def test_should_list_top_level_categories
@@ -122,7 +122,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     assert_equal 2, cats.size
     assert cats.include?(cat1)
     assert cats.include?(cat2)
-    assert !cats.include?(subcat)
+    refute cats.include?(subcat)
   end
   def test_should_list_all_categories
@@ -157,18 +157,18 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
   should 'list displayable categories' do
     env = fast_create(Environment)
     cat1 = create(Category, :environment => env, :name => 'category one', :display_color => 'ffa500')
-    assert ! cat1.new_record?
+    refute  cat1.new_record?
     # subcategories should be ignored
     subcat1 = create(Category, :environment => env, :name => 'subcategory one', :parent_id => cat1.id)
-    assert ! subcat1.new_record?
+    refute  subcat1.new_record?
     cat2 = create(Category, :environment => env, :name => 'category two')
-    assert !cat2.new_record?
+    refute cat2.new_record?
     assert_equal 1,  env.display_categories.size
     assert env.display_categories.include?(cat1)
-    assert !env.display_categories.include?(cat2)
+    refute env.display_categories.include?(cat2)
   end
   should 'have regions' do
@@ -192,7 +192,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     env.contact_email = 'test@example.com'
     env.valid?
-    assert !env.errors[:contact_email.to_s].present?
+    refute env.errors[:contact_email.to_s].present?
   end
   should 'notify contact email' do
@@ -512,10 +512,10 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     assert_kind_of Person, e.person_default_template
     # the templates must be private
-    assert !e.enterprise_default_template.visible?
-    assert !e.inactive_enterprise_template.visible?
-    assert !e.community_default_template.visible?
-    assert !e.person_default_template.visible?
+    refute e.enterprise_default_template.visible?
+    refute e.inactive_enterprise_template.visible?
+    refute e.community_default_template.visible?
+    refute e.person_default_template.visible?
   end
   should 'person_templates return all templates of person' do
@@ -710,7 +710,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     p2 = fast_create(Person, :is_template => true, :environment_id => env.id)
     env.person_default_template= p2.id
-    assert !env.is_default_template?(p1)
+    refute env.is_default_template?(p1)
   end
   should 'is_default_template? method identify a community default template as default' do
@@ -722,7 +722,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     c2 = fast_create(Community, :is_template => true, :environment_id => env.id)
     env.community_default_template= c2.id
-    assert !env.is_default_template?(c1)
+    refute env.is_default_template?(c1)
   end
   should 'is_default_template? method identify a enterprise default template as default' do
@@ -734,7 +734,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     e2 = fast_create(Enterprise, :is_template => true, :environment_id => env.id)
     env.enterprise_default_template= e2.id
-    assert !env.is_default_template?(e1)
+    refute env.is_default_template?(e1)
   end
   should 'have a layout template' do
@@ -772,7 +772,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     env.custom_person_fields = { 'birth_date' => {'required' => 'true', 'active' => 'true'}, 'cell_phone' => {'required' => 'true', 'active' => 'true'}}
     expected_hash = {'cell_phone' => {'required' => 'true', 'active' => 'true', 'signup' => 'true'}}
     assert(env.custom_person_fields.merge(expected_hash) == env.custom_person_fields)
-    assert ! env.custom_person_fields.keys.include?('birth_date')
+    refute  env.custom_person_fields.keys.include?('birth_date')
   end
   should 'add schooling_status if custom_person_fields has schooling' do
@@ -782,7 +782,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     env.custom_person_fields = { 'schooling' => {'required' => 'true', 'active' => 'true'}}
     expected_hash = {'schooling' => {'required' => 'true', 'active' => 'true', 'signup' => 'true'}, 'schooling_status' => {'required' => 'true', 'signup' => 'true', 'active' => 'true'}}
     assert(env.custom_person_fields.merge(expected_hash) == env.custom_person_fields)
-    assert ! env.custom_person_fields.keys.include?('birth_date')
+    refute  env.custom_person_fields.keys.include?('birth_date')
   end
   should 'return person_fields status' do
@@ -846,7 +846,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     env.custom_enterprise_fields = { 'contact_email' => {'required' => 'true', 'active' => 'true'}, 'contact_person' => {'required' => 'true', 'active' => 'true'}}
     assert_equal({'contact_person' => {'required' => 'true', 'signup' => 'true', 'active' => 'true'}}, env.custom_enterprise_fields)
-    assert ! env.custom_enterprise_fields.keys.include?('contact_email')
+    refute  env.custom_enterprise_fields.keys.include?('contact_email')
   end
   should 'return enteprise_fields status' do
@@ -889,7 +889,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     env.custom_community_fields = { 'contact_email' => {'required' => 'true', 'active' => 'true'}, 'contact_person' => {'required' => 'true', 'active' => 'true'}}
     assert_equal({'contact_person' => {'required' => 'true', 'signup' => 'true', 'active' => 'true'}}, env.custom_community_fields)
-    assert ! env.custom_community_fields.keys.include?('contact_email')
+    refute  env.custom_community_fields.keys.include?('contact_email')
   end
   should 'return community_fields status' do
@@ -1165,7 +1165,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
   should "terms of use not be an blank string" do
     v = fast_create(Environment)
     v.terms_of_use = '   '
-    assert !v.has_terms_of_use?
+    refute v.has_terms_of_use?
   end
   should 'have currency unit attribute' do
@@ -1410,7 +1410,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     environment.reports_lower_bound = 5
     environment.valid?
-    assert !environment.errors[:reports_lower_bound.to_s].present?
+    refute environment.errors[:reports_lower_bound.to_s].present?
   end
   should 'be able to enable or disable a plugin with the class or class name' do
@@ -1424,7 +1424,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     environment.disable_plugin(Plugin.to_s)
     environment.reload
-    assert !environment.plugin_enabled?(Plugin)
+    refute environment.plugin_enabled?(Plugin)
   end
   should 'activate on database all available plugins' do
@@ -1492,7 +1492,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     Environment.login_redirection_options.keys.each do |redirection|
       environment.redirection_after_login = redirection
       environment.save
-      assert !environment.errors[:redirection_after_login.to_s].present?
+      refute environment.errors[:redirection_after_login.to_s].present?
     end
   end
@@ -1513,7 +1513,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     Environment.signup_redirection_options.keys.each do |redirection|
       environment.redirection_after_signup = redirection
       environment.save
-      assert !environment.errors[:redirection_after_signup.to_s].present?
+      refute environment.errors[:redirection_after_signup.to_s].present?
     end
   end
@@ -1537,14 +1537,14 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
   should 'not consider signup welcome text if not defined' do
     env = Environment.default
-    assert !env.has_signup_welcome_text?
+    refute env.has_signup_welcome_text?
   end
   should 'not consider signup welcome text if nil' do
     env = Environment.default
     env.signup_welcome_text = nil
-    assert !env.has_signup_welcome_text?
+    refute env.has_signup_welcome_text?
   end
   should 'not consider signup welcome text if body is nil' do
@@ -1553,7 +1553,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     env.signup_welcome_text = {
       :subject => 'Welcome to the environment',
     }
-    assert !env.has_signup_welcome_text?
+    refute env.has_signup_welcome_text?
   end
   should 'consider signup welcome text if subject is nil but body is defined' do
@@ -1604,7 +1604,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     environment.default_language = 'en'
     environment.valid?
-    assert !environment.errors[:default_language.to_s].present?
+    refute environment.errors[:default_language.to_s].present?
   end
   should 'define default locale or use the config default locale' do
@@ -1627,7 +1627,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     environment.languages = ['en']
     environment.valid?
-    assert !environment.errors[:languages.to_s].present?
+    refute environment.errors[:languages.to_s].present?
   end
   should 'define locales or use the config locales' do
@@ -1655,14 +1655,14 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
   should 'not consider custom welcome screen text if not defined' do
     env = Environment.default
-    assert !env.has_custom_welcome_screen?
+    refute env.has_custom_welcome_screen?
   end
   should 'not consider custom welcome screen text if nil' do
     env = Environment.default
     env.signup_welcome_screen_body = nil
-    assert !env.has_custom_welcome_screen?
+    refute env.has_custom_welcome_screen?
   end
   should 'consider signup welcome screen if body is defined' do
@@ -1699,7 +1699,7 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
   should 'has_license be false if there is no license in enviroment' do
     e = fast_create(Environment)
-    assert !e.has_license?
+    refute e.has_license?
   end
   should 'validates_inclusion_of date format' do
@@ -1711,23 +1711,23 @@ class EnvironmentTest &lt; ActiveSupport::TestCase
     environment.date_format = "numbers_with_year"
     environment.valid?
-    assert !environment.errors[:date_format.to_s].present?
+    refute environment.errors[:date_format.to_s].present?
     environment.date_format = "numbers"
     environment.valid?
-    assert !environment.errors[:date_format.to_s].present?
+    refute environment.errors[:date_format.to_s].present?
     environment.date_format = "month_name_with_year"
     environment.valid?
-    assert !environment.errors[:date_format.to_s].present?
+    refute environment.errors[:date_format.to_s].present?
     environment.date_format = "month_name"
     environment.valid?
-    assert !environment.errors[:date_format.to_s].present?
+    refute environment.errors[:date_format.to_s].present?
     environment.date_format = "past_time"
     environment.valid?
-    assert !environment.errors[:date_format.to_s].present?
+    refute environment.errors[:date_format.to_s].present?
   end
 end
@@ -47,7 +47,7 @@ class EventTest &lt; ActiveSupport::TestCase
     assert e.errors[:start_date.to_s].present?
     e.start_date = Date.today
     e.valid?
-    assert !e.errors[:start_date.to_s].present?
+    refute e.errors[:start_date.to_s].present?
   end
   should 'have a end date' do
@@ -67,7 +67,7 @@ class EventTest &lt; ActiveSupport::TestCase
     e.end_date = Date.new(2008,01,05)
     e.valid?
-    assert !e.errors[:start_date.to_s].present?
+    refute e.errors[:start_date.to_s].present?
   end
   should 'find by range of dates' do
@@ -223,8 +223,8 @@ class EventTest &lt; ActiveSupport::TestCase
     assert month_events.include?(current_month_event_1)
     assert month_events.include?(current_month_event_2)
-    assert !month_events.include?(last_month_event)
-    assert !month_events.include?(next_month_event)
+    refute month_events.include?(last_month_event)
+    refute month_events.include?(next_month_event)
   end
   should 'event by month ordered by start date'do
@@ -339,7 +339,7 @@ class EventTest &lt; ActiveSupport::TestCase
     event = Event.new(:profile => profile)
-    assert !event.translatable?
+    refute event.translatable?
   end
   should 'be translatable if there is languages on environment' do
@@ -348,7 +348,7 @@ class EventTest &lt; ActiveSupport::TestCase
     profile = fast_create(Person, :environment_id => environment.id)
     event = fast_create(Event, :profile_id => profile.id)
-    assert !event.translatable?
+    refute event.translatable?
     environment.languages = ['en','pt','fr']
@@ -21,7 +21,7 @@ class ExternalFeedTest &lt; ActiveSupport::TestCase
     blog = create_blog
     e = create(:external_feed, blog: blog)
     assert e.add_item('Article title', 'http://orig.link.invalid', Time.now, 'Content for external post')
-    assert !e.add_item('Article title', 'http://orig.link.invalid', Time.now, 'Content for external post')
+    refute e.add_item('Article title', 'http://orig.link.invalid', Time.now, 'Content for external post')
     assert_equal 1, e.blog.posts.size
   end
@@ -61,7 +61,7 @@ class ExternalFeedTest &lt; ActiveSupport::TestCase
   should 'require address if enabled' do
     e = build(ExternalFeed, :enabled => true, :address => nil)
-    assert !e.valid?
+    refute e.valid?
     assert e.errors[:address].present?
   end
@@ -104,13 +104,13 @@ class FeedHandlerTest &lt; ActiveSupport::TestCase
       # in the first 4 errors, we are ok
       4.times { handler.process(container) }
-      assert !container.error_message.blank?, 'should set the error message for the first <max_errors> errors (%s)' % container_class
+      refute container.error_message.blank?, 'should set the error message for the first <max_errors> errors (%s)' % container_class
       assert container.enabled, 'must keep container enabled during the first <max_errors> errors (%s)' % container_class
       # 5 errors it too much
       handler.process(container)
-      assert !container.error_message.blank?, 'must set error message in container after <max_errors> errors (%s)' % container_class
-      assert !container.enabled, 'must disable continer after <max_errors> errors (%s)' % container_class
+      refute container.error_message.blank?, 'must set error message in container after <max_errors> errors (%s)' % container_class
+      refute container.enabled, 'must disable continer after <max_errors> errors (%s)' % container_class
     end
     should "reenable after <disabled_period> (#{container_class})" do
@@ -107,7 +107,7 @@ class ForumTest &lt; ActiveSupport::TestCase
   should 'not accept uploads' do
     folder = fast_create(Forum)
-    assert !folder.accept_uploads?
+    refute folder.accept_uploads?
   end
   should 'be notifiable' do
@@ -180,7 +180,7 @@ class ForumTest &lt; ActiveSupport::TestCase
     forum = Forum.new(:profile => person)
     assert forum.can_create_topic?(person)
-    assert !forum.can_create_topic?(someone)
+    refute forum.can_create_topic?(someone)
   end
   should 'always allow topic creation to profile admins' do
@@ -192,7 +192,7 @@ class ForumTest &lt; ActiveSupport::TestCase
     forum = Forum.new(:profile => profile)
     assert forum.can_create_topic?(admin)
-    assert !forum.can_create_topic?(someone)
+    refute forum.can_create_topic?(someone)
   end
   should 'always allow topic creation to environment admins' do
@@ -205,7 +205,7 @@ class ForumTest &lt; ActiveSupport::TestCase
     forum = Forum.new(:profile => profile)
     assert forum.can_create_topic?(admin)
-    assert !forum.can_create_topic?(someone)
+    refute forum.can_create_topic?(someone)
   end
   should 'allow only person friends to create topics when topic_creation is related' do
@@ -217,7 +217,7 @@ class ForumTest &lt; ActiveSupport::TestCase
     forum = Forum.new(:profile => person, :topic_creation => 'related')
     assert forum.can_create_topic?(friend)
-    assert !forum.can_create_topic?(someone)
+    refute forum.can_create_topic?(someone)
   end
   should 'allow only group members to create topics when topic_creation is related' do
@@ -229,7 +229,7 @@ class ForumTest &lt; ActiveSupport::TestCase
     forum = Forum.new(:profile => organization, :topic_creation => 'related')
     assert forum.can_create_topic?(member)
-    assert !forum.can_create_topic?(someone)
+    refute forum.can_create_topic?(someone)
   end
   should 'allow every user to create topics when topic_creation is users' do
@@ -238,6 +238,6 @@ class ForumTest &lt; ActiveSupport::TestCase
     forum = Forum.new(:profile => profile, :topic_creation => 'users')
     assert forum.can_create_topic?(user)
-    assert !forum.can_create_topic?(nil)
+    refute forum.can_create_topic?(nil)
   end
 end
@@ -47,7 +47,7 @@ class ImageTest &lt; ActiveSupport::TestCase
   end
   should 'return false by default in thumbnails_processed' do
-    assert !Image.new.thumbnails_processed
+    refute Image.new.thumbnails_processed
   end
   should 'set thumbnails_processed to true' do
@@ -11,7 +11,7 @@ class InputTest &lt; ActiveSupport::TestCase
     input.product_category = product_category
     input.valid?
-    assert !input.errors[:product_category.to_s].present?
+    refute input.errors[:product_category.to_s].present?
   end
   should 'require product' do
@@ -24,7 +24,7 @@ class InputTest &lt; ActiveSupport::TestCase
     input.product = product
     input.valid?
-    assert !input.errors[:product.to_s].present?
+    refute input.errors[:product.to_s].present?
   end
   should 'store inputs ordered by position' do
@@ -64,7 +64,7 @@ class InputTest &lt; ActiveSupport::TestCase
   should 'dont have price details when price related fields was not filled' do
     input = Input.new
-    assert !input.has_price_details?
+    refute input.has_price_details?
   end
   should 'has price details if price_per_unit filled' do
@@ -79,7 +79,7 @@ class InputTest &lt; ActiveSupport::TestCase
   should 'not have price details if only unit is filled' do
     input = build(Input, :unit => Unit.new)
-    assert !input.has_price_details?
+    refute input.has_price_details?
   end
   should 'accept price_per_unit in american\'s or brazilian\'s currency format' do
@@ -116,10 +116,10 @@ class InviteFriendTest &lt; ActiveSupport::TestCase
     p = create_user('testuser1').person
     task1 = InviteFriend.new(:person => p, :friend => p, :message => 'click here: <url>')
-    assert !task1.save
+    refute task1.save
     task2 = InviteFriend.new(:person => p, :friend_name => 'Myself', :friend_email => p.user.email, :message => 'click here: <url>')
-    assert !task2.save
+    refute task2.save
   end
   should 'have target notification description' do
@@ -107,10 +107,10 @@ class InviteMemberTest &lt; ActiveSupport::TestCase
     p = create_user('testuser1').person
     task1 = build(InviteMember, :person => p, :friend => p, :message => 'click here: <url>')
-    assert !task1.save
+    refute task1.save
     task2 = build(InviteMember, :person => p, :friend_name => 'Myself', :friend_email => p.user.email, :message => 'click here: <url>')
-    assert !task2.save
+    refute task2.save
   end
   should 'have target notification description' do
@@ -10,8 +10,8 @@ class LicenseTest &lt; ActiveSupport::TestCase
     license.name = 'GPLv3'
     license.environment = Environment.default
     license.valid?
-    assert !license.errors[:name].any?
-    assert !license.errors[:environment].any?
+    refute license.errors[:name].any?
+    refute license.errors[:environment].any?
   end
   should 'fill in slug before creation' do
@@ -27,7 +27,7 @@ class MailingTest &lt; ActiveSupport::TestCase
     mailing.source_id = Environment.default.id
     mailing.valid?
-    assert !mailing.errors[:source_id.to_s].present?
+    refute mailing.errors[:source_id.to_s].present?
   end
   should 'require subject' do
@@ -37,7 +37,7 @@ class MailingTest &lt; ActiveSupport::TestCase
     mailing.subject = 'Hello :)'
     mailing.valid?
-    assert !mailing.errors[:subject.to_s].present?
+    refute mailing.errors[:subject.to_s].present?
   end
   should 'require body' do
@@ -47,7 +47,7 @@ class MailingTest &lt; ActiveSupport::TestCase
     mailing.body = 'We have some news!'
     mailing.valid?
-    assert !mailing.errors[:body.to_s].present?
+    refute mailing.errors[:body.to_s].present?
   end
   should 'return source' do
@@ -26,7 +26,7 @@ class MainBlockTest &lt; ActiveSupport::TestCase
     env = Environment.new
     block = MainBlock.new(:display => 'never')
     block.stubs(:owner).returns(env)
-    assert !block.visible?
+    refute block.visible?
   end
   should 'guarantee main block is always visible to everybody' do
@@ -15,7 +15,7 @@ class ModerateUserRegistrationTest &lt; ActiveSupport::TestCase
     t.email = user.email
     t.target= environment
     t.save!
-    assert !user.activated?
+    refute user.activated?
     t.perform
     assert environment.users.find_by_id(user.id).activated?
   end
@@ -31,7 +31,7 @@ class MultiTenancyTest &lt; ActiveSupport::TestCase
   def test_multitenancy_is_off_if_it_is_not_a_hosted_environment_and_there_is_no_mapping
     Noosfero::MultiTenancy.expects(:mapping).returns({})
     Noosfero::MultiTenancy.expects(:is_hosted_environment?).returns(false)
-    assert !Noosfero::MultiTenancy.on?
+    refute Noosfero::MultiTenancy.on?
   end
   def test_set_schema_by_host
@@ -54,7 +54,7 @@ class MultiTenancyTest &lt; ActiveSupport::TestCase
   def test_if_is_not_hosted_environment
     YAML.expects(:load_file).returns(db_config)
-    assert !Noosfero::MultiTenancy.send(:is_hosted_environment?)
+    refute Noosfero::MultiTenancy.send(:is_hosted_environment?)
   end
   private
@@ -27,7 +27,7 @@ class NationalRegionTest &lt; ActiveSupport::TestCase
     found_regions = NationalRegion.search_city('Santo %', true)
-    assert !(found_regions.length != 3)
+    refute (found_regions.length != 3)
     found_regions.each do |region|
       assert city_names.find_index(region.city) >=  0
@@ -60,7 +60,7 @@ class NationalRegionTest &lt; ActiveSupport::TestCase
     found_regions = NationalRegion.search_state('Rio %', true)
-    assert !(found_regions.length != 3)
+    refute (found_regions.length != 3)
     found_regions.each do |region|
       assert state_names.find_index(region.state) >=  0
@@ -28,7 +28,7 @@ class NotifyActivityToProfilesJobTest &lt; ActiveSupport::TestCase
     person = fast_create(Person)
     community  = fast_create(Community)
     action_tracker = fast_create(ActionTracker::Record, :user_type => 'Profile', :user_id => person.id, :target_type => 'Profile', :verb => 'create_article')
-    assert !NotifyActivityToProfilesJob::NOTIFY_ONLY_COMMUNITY.include?(action_tracker.verb)
+    refute NotifyActivityToProfilesJob::NOTIFY_ONLY_COMMUNITY.include?(action_tracker.verb)
     p1, p2, m1, m2 = fast_create(Person), fast_create(Person), fast_create(Person), fast_create(Person)
     fast_create(Friendship, :person_id => person.id, :friend_id => p1.id)
     fast_create(Friendship, :person_id => person.id, :friend_id => p2.id)
@@ -50,7 +50,7 @@ class NotifyActivityToProfilesJobTest &lt; ActiveSupport::TestCase
     person = fast_create(Person)
     community  = fast_create(Community)
     action_tracker = fast_create(ActionTracker::Record, :user_type => 'Profile', :user_id => person.id, :target_type => 'Profile', :target_id => community.id, :verb => 'create_article')
-    assert !NotifyActivityToProfilesJob::NOTIFY_ONLY_COMMUNITY.include?(action_tracker.verb)
+    refute NotifyActivityToProfilesJob::NOTIFY_ONLY_COMMUNITY.include?(action_tracker.verb)
     m1, m2 = fast_create(Person), fast_create(Person), fast_create(Person), fast_create(Person)
     fast_create(RoleAssignment, :accessor_id => m1.id, :role_id => 3, :resource_id => community.id)
     fast_create(RoleAssignment, :accessor_id => m2.id, :role_id => 3, :resource_id => community.id)
@@ -70,7 +70,7 @@ class NotifyActivityToProfilesJobTest &lt; ActiveSupport::TestCase
     person = fast_create(Person)
     community  = fast_create(Community)
     action_tracker = fast_create(ActionTracker::Record, :user_type => 'Profile', :user_id => person.id, :target_type => 'Profile', :target_id => community.id, :verb => 'create_article')
-    assert !NotifyActivityToProfilesJob::NOTIFY_ONLY_COMMUNITY.include?(action_tracker.verb)
+    refute NotifyActivityToProfilesJob::NOTIFY_ONLY_COMMUNITY.include?(action_tracker.verb)
     p1, p2, m1, m2 = fast_create(Person), fast_create(Person), fast_create(Person), fast_create(Person)
     fast_create(Friendship, :person_id => person.id, :friend_id => p1.id)
     fast_create(Friendship, :person_id => person.id, :friend_id => p2.id)
@@ -92,7 +92,7 @@ class NotifyActivityToProfilesJobTest &lt; ActiveSupport::TestCase
     person = fast_create(Person)
     private_community  = fast_create(Community, :public_profile => false)
     action_tracker = fast_create(ActionTracker::Record, :user_type => 'Profile', :user_id => person.id, :target_type => 'Profile', :target_id => private_community.id, :verb => 'create_article')
-    assert !NotifyActivityToProfilesJob::NOTIFY_ONLY_COMMUNITY.include?(action_tracker.verb)
+    refute NotifyActivityToProfilesJob::NOTIFY_ONLY_COMMUNITY.include?(action_tracker.verb)
     p1, p2, m1, m2 = fast_create(Person), fast_create(Person), fast_create(Person), fast_create(Person)
     fast_create(Friendship, :person_id => person.id, :friend_id => p1.id)
     fast_create(Friendship, :person_id => person.id, :friend_id => p2.id)
@@ -117,7 +117,7 @@ class NotifyActivityToProfilesJobTest &lt; ActiveSupport::TestCase
     person = fast_create(Person)
     community  = fast_create(Community)
     action_tracker = fast_create(ActionTracker::Record, :user_type => 'Profile', :user_id => person.id, :target_type => 'Profile', :target_id => community.id, :verb => 'join_community')
-    assert !NotifyActivityToProfilesJob::NOTIFY_ONLY_COMMUNITY.include?(action_tracker.verb)
+    refute NotifyActivityToProfilesJob::NOTIFY_ONLY_COMMUNITY.include?(action_tracker.verb)
     p1, p2, m1, m2 = fast_create(Person), fast_create(Person), fast_create(Person), fast_create(Person)
     fast_create(Friendship, :person_id => person.id, :friend_id => p1.id)
     fast_create(Friendship, :person_id => person.id, :friend_id => p2.id)
@@ -22,7 +22,7 @@ class OrganizationMailingTest &lt; ActiveSupport::TestCase
     mailing.source_id = community.id
     mailing.valid?
-    assert !mailing.errors[:source_id.to_s].present?
+    refute mailing.errors[:source_id.to_s].present?
   end
   should 'return community name' do
@@ -115,7 +115,7 @@ class OrganizationMailingTest &lt; ActiveSupport::TestCase
     mailing = create(OrganizationMailing, :source => community, :subject => 'Hello', :body => 'We have some news', :person => person)
     process_delayed_job_queue
-    assert !mailing.mailing_sents.find_by_person_id(recipient.id)
+    refute mailing.mailing_sents.find_by_person_id(recipient.id)
   end
   protected
@@ -80,11 +80,11 @@ class OrganizationTest &lt; ActiveSupport::TestCase
   should 'validate contact_email if filled' do
     org = Organization.new
     org.valid?
-    assert !org.errors[:contact_email.to_s].present?
+    refute org.errors[:contact_email.to_s].present?
     org.contact_email = ''
     org.valid?
-    assert !org.errors[:contact_email.to_s].present?
+    refute org.errors[:contact_email.to_s].present?
     org.contact_email = 'invalid-email'
@@ -93,7 +93,7 @@ class OrganizationTest &lt; ActiveSupport::TestCase
     org.contact_email = 'someone@somedomain.com'
     org.valid?
-    assert !org.errors[:contact_email.to_s].present?
+    refute org.errors[:contact_email.to_s].present?
   end
   should 'list contact_email plus admin emails as "notification emails"' do
@@ -191,7 +191,7 @@ class OrganizationTest &lt; ActiveSupport::TestCase
     org.foundation_year = 2007
     org.valid?
-    assert ! org.errors[:foundation_year.to_s].present?
+    refute  org.errors[:foundation_year.to_s].present?
   end
   should 'has closed' do
@@ -245,7 +245,7 @@ class OrganizationTest &lt; ActiveSupport::TestCase
   should 'be closed if organization is not public' do
     organization = fast_create(Organization)
-    assert !organization.closed
+    refute organization.closed
     organization.public_profile = false
     organization.save!
@@ -278,11 +278,11 @@ class OrganizationTest &lt; ActiveSupport::TestCase
     p2 = fast_create(Person)
     p3 = fast_create(Person)
-    assert !p1.is_member_of?(o)
+    refute p1.is_member_of?(o)
     o.add_member(p1)
     assert p1.is_member_of?(o)
-    assert !p3.is_member_of?(o)
+    refute p3.is_member_of?(o)
     o.add_member(p3)
     assert p3.is_member_of?(o)
@@ -380,7 +380,7 @@ class OrganizationTest &lt; ActiveSupport::TestCase
     organization.cnpj = '94.132.024/0001-48'
     organization.valid?
-    assert !organization.errors[:cnpj.to_s].present?
+    refute organization.errors[:cnpj.to_s].present?
   end
   should 'get members by role' do
@@ -429,7 +429,7 @@ class OrganizationTest &lt; ActiveSupport::TestCase
     assert organization.visible
     organization.disable
-    assert !organization.visible
+    refute organization.visible
   end
   should 'increase members_count on new membership' do
@@ -467,14 +467,14 @@ class OrganizationTest &lt; ActiveSupport::TestCase
     member = create_user('memberuser').person
     c.add_member(member)
-    assert !c.is_admin?(member)
+    refute c.is_admin?(member)
   end
   should 'a moderator user not be a community admin' do
     c = fast_create(Organization, :name => 'my test profile', :identifier => 'mytestprofile')
     moderator = create_user('moderatoruser').person
     c.add_moderator(moderator)
-    assert !c.is_admin?(moderator)
+    refute c.is_admin?(moderator)
   end
 end
@@ -184,11 +184,11 @@ class PersonNotifierTest &lt; ActiveSupport::TestCase
   should 'exists? method in NotifyAllJob return false if there is no instance of this class created' do
     Delayed::Job.enqueue(PersonNotifier::NotifyJob.new)
-    assert !PersonNotifier::NotifyAllJob.exists?
+    refute PersonNotifier::NotifyAllJob.exists?
   end
   should 'exists? method in NotifyAllJob return false if there is no jobs created' do
-    assert !PersonNotifier::NotifyAllJob.exists?
+    refute PersonNotifier::NotifyAllJob.exists?
   end
   should 'exists? method in NotifyAllJob return true if there is at least one instance of this class' do
@@ -222,7 +222,7 @@ class PersonNotifierTest &lt; ActiveSupport::TestCase
     process_delayed_job_queue
     jobs = PersonNotifier::NotifyJob.find(@member.id)
-    assert !jobs.select {|j| !j.failed? && j.last_error.nil? }.empty?
+    refute jobs.select {|j| !j.failed? && j.last_error.nil? }.empty?
   end
   should 'render image tags for both internal and external src' do
@@ -6,9 +6,9 @@ class PersonTest &lt; ActiveSupport::TestCase
   def test_person_must_come_from_the_creation_of_an_user
     p = build(Person, :environment => Environment.default, :name => 'John', :identifier => 'john')
-    assert !p.valid?
+    refute p.valid?
     p.user =  create_user('john', :email => 'john@doe.org', :password => 'dhoe', :password_confirmation => 'dhoe')
-    assert !p.valid?
+    refute p.valid?
     p = create_user('johnz', :email => 'johnz@doe.org', :password => 'dhoe', :password_confirmation => 'dhoe').person
     assert p.valid?
   end
@@ -59,7 +59,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     p2 = build(Person, :environment => Environment.default)
     p2.user = u
-    assert !p2.valid?
+    refute p2.valid?
     assert p2.errors[:user_id.to_s].present?
   end
@@ -86,7 +86,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     assert p.define_roles([r2], e)
     p = Person.find(p.id)
     assert p.role_assignments.any? {|ra| ra.role == r2}
-    assert !p.role_assignments.any? {|ra| ra.role == r1}
+    refute p.role_assignments.any? {|ra| ra.role == r1}
   end
   should 'report that the user has the permission' do
@@ -97,7 +97,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     p = Person.find(p.id)
     assert e.reload
     assert p.has_permission?('edit_profile', e)
-    assert !p.has_permission?('destroy_profile', e)
+    refute p.has_permission?('destroy_profile', e)
   end
   should 'get an email address from the associated user instance' do
@@ -144,7 +144,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     other = create_user('user', :email => 'other@example.com', :environment => other_env).person
     other.email = 'user@example.com'
     other.valid?
-    assert !other.errors[:email.to_s].present?
+    refute other.errors[:email.to_s].present?
   end
   should 'be an admin if have permission of environment administration' do
@@ -152,7 +152,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     env = fast_create(Environment)
     person = create_user('just_another_person').person
     env.affiliate(person, role)
-    assert ! person.is_admin?(env)
+    refute  person.is_admin?(env)
     role.update_attributes(:permissions => ['view_environment_admin_panel'])
     person = Person.find(person.id)
     assert person.is_admin?(env)
@@ -172,7 +172,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     person = Person.find(person.id)
     assert person.is_admin?(env1)
-    assert !person.is_admin?(env2)
+    refute person.is_admin?(env2)
   end
   should 'create a default set of articles' do
@@ -187,9 +187,9 @@ class PersonTest &lt; ActiveSupport::TestCase
   should 'create a default set of blocks' do
     p = create(User).person
-    assert !p.boxes[0].blocks.empty?, 'person must have blocks in area 1'
-    assert !p.boxes[1].blocks.empty?, 'person must have blocks in area 2'
-    assert !p.boxes[2].blocks.empty?, 'person must have blocks in area 3'
+    refute p.boxes[0].blocks.empty?, 'person must have blocks in area 1'
+    refute p.boxes[1].blocks.empty?, 'person must have blocks in area 2'
+    refute p.boxes[2].blocks.empty?, 'person must have blocks in area 3'
   end
   should 'link to all articles created by default' do
@@ -317,7 +317,7 @@ class PersonTest &lt; ActiveSupport::TestCase
   should 'required name' do
     person = Person.new
-    assert !person.valid?
+    refute person.valid?
     assert person.errors[:name].present?
   end
@@ -325,7 +325,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     p1 = create_user('testuser1').person
     p2 = create_user('testuser2').person
     create(AddFriend, person: p1, friend: p2).finish
-    assert !p1.already_request_friendship?(p2)
+    refute p1.already_request_friendship?(p2)
     create(AddFriend, person: p1, friend: p2)
     assert p1.already_request_friendship?(p2)
   end
@@ -394,7 +394,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     p1 = create_user('user_with_tasks').person
     c1 = fast_create(Community)
     c1.tasks << Task.new
-    assert !c1.tasks.pending.empty?
+    refute c1.tasks.pending.empty?
     c1.add_admin(p1)
     c2 = fast_create(Community)
@@ -463,12 +463,12 @@ class PersonTest &lt; ActiveSupport::TestCase
     e = Environment.default
     e.expects(:required_person_fields).returns(['cell_phone']).at_least_once
     person = build(Person, :environment => e)
-    assert ! person.valid?
+    refute  person.valid?
     assert person.errors[:cell_phone.to_s].present?
     person.cell_phone = '99999'
     person.valid?
-    assert ! person.errors[:cell_phone.to_s].present?
+    refute  person.errors[:cell_phone.to_s].present?
   end
   should 'require custom_area_of_study if area_of_study is others' do
@@ -476,12 +476,12 @@ class PersonTest &lt; ActiveSupport::TestCase
     e.expects(:required_person_fields).returns(['area_of_study', 'custom_area_of_study']).at_least_once
     person = build(Person, :environment => e, :area_of_study => 'Others')
-    assert !person.valid?
+    refute person.valid?
     assert person.errors[:custom_area_of_study.to_s].present?
     person.custom_area_of_study = 'Customized area of study'
     person.valid?
-    assert ! person.errors[:custom_area_of_study.to_s].present?
+    refute  person.errors[:custom_area_of_study.to_s].present?
   end
   should 'not require custom_area_of_study if area_of_study is not others' do
@@ -490,7 +490,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     person = build(Person, :environment => e, :area_of_study => 'Agrometeorology')
     person.valid?
-    assert ! person.errors[:custom_area_of_study.to_s].present?
+    refute  person.errors[:custom_area_of_study.to_s].present?
   end
   should 'require custom_formation if formation is others' do
@@ -498,12 +498,12 @@ class PersonTest &lt; ActiveSupport::TestCase
     e.expects(:required_person_fields).returns(['formation', 'custom_formation']).at_least_once
     person = build(Person, :environment => e, :formation => 'Others')
-    assert !person.valid?
+    refute person.valid?
     assert person.errors[:custom_formation.to_s].present?
     person.custom_formation = 'Customized formation'
     person.valid?
-    assert ! person.errors[:custom_formation.to_s].present?
+    refute  person.errors[:custom_formation.to_s].present?
   end
   should 'not require custom_formation if formation is not others' do
@@ -511,20 +511,20 @@ class PersonTest &lt; ActiveSupport::TestCase
     e.expects(:required_person_fields).returns(['formation']).at_least_once
     person = build(Person, :environment => e, :formation => 'Agrometeorology')
-    assert !person.valid?
-    assert ! person.errors[:custom_formation.to_s].present?
+    refute person.valid?
+    refute  person.errors[:custom_formation.to_s].present?
   end
   should 'not require fields if person is a template' do
     e = Environment.default
     e.expects(:required_person_fields).returns(['cell_phone']).at_least_once
     person = build(Person, :environment => e)
-    assert ! person.valid?
+    refute  person.valid?
     assert person.errors[:cell_phone.to_s].present?
     person.is_template = true
     person.valid?
-    assert ! person.errors[:cell_phone.to_s].present?
+    refute  person.errors[:cell_phone.to_s].present?
   end
   should 'identify when person is a friend' do
@@ -538,7 +538,7 @@ class PersonTest &lt; ActiveSupport::TestCase
   should 'identify when person isnt a friend' do
     p1 = create_user('testuser1').person
     p2 = create_user('testuser2').person
-    assert !p1.is_a_friend?(p2)
+    refute p1.is_a_friend?(p2)
   end
   should 'refuse join community' do
@@ -547,7 +547,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     assert p.ask_to_join?(c)
     p.refuse_join(c)
-    assert !p.ask_to_join?(c)
+    refute p.ask_to_join?(c)
   end
   should 'not ask to join for a member' do
@@ -555,7 +555,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     c = fast_create(Community)
     c.add_member(p)
-    assert !p.ask_to_join?(c)
+    refute p.ask_to_join?(c)
   end
   should 'not ask to join if already asked' do
@@ -563,7 +563,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     c = fast_create(Community)
     create(AddMember, :person => p, :organization => c)
-    assert !p.ask_to_join?(c)
+    refute p.ask_to_join?(c)
   end
   should 'ask to join if community is not public' do
@@ -577,7 +577,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     person = fast_create(Person)
     community = fast_create(Community, :visible => false)
-    assert !person.ask_to_join?(community)
+    refute person.ask_to_join?(community)
   end
   should 'save organization_website with http' do
@@ -606,7 +606,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     p2 = create_user('testuser2').person
     assert p1.add_friend(p2)
     assert Profile['testuser1'].is_a_friend?(p2)
-    assert !Profile['testuser1'].add_friend(p2)
+    refute Profile['testuser1'].add_friend(p2)
   end
   should 'not raise exception when validates person without e-mail' do
@@ -614,7 +614,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     person.user.email = nil
     assert_nothing_raised ActiveRecord::RecordInvalid do
-      assert !person.save
+      refute person.save
     end
   end
@@ -766,11 +766,11 @@ class PersonTest &lt; ActiveSupport::TestCase
     p2 = fast_create(Person)
     p3 = fast_create(Person)
-    assert !p1.is_member_of?(c)
+    refute p1.is_member_of?(c)
     c.add_member(p1)
     assert p1.is_member_of?(c)
-    assert !p3.is_member_of?(c)
+    refute p3.is_member_of?(c)
     c.add_member(p3)
     assert p3.is_member_of?(c)
@@ -786,11 +786,11 @@ class PersonTest &lt; ActiveSupport::TestCase
     p2 = fast_create(Person)
     p3 = fast_create(Person)
-    assert !p1.is_member_of?(e)
+    refute p1.is_member_of?(e)
     e.add_member(p1)
     assert p1.is_member_of?(e)
-    assert !p3.is_member_of?(e)
+    refute p3.is_member_of?(e)
     e.add_member(p3)
     assert p3.is_member_of?(e)
@@ -843,7 +843,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     p1.add_friend(p2)
     assert p1.is_a_friend?(p2)
-    assert !p1.is_a_friend?(p3)
+    refute p1.is_a_friend?(p3)
     p1.add_friend(p4)
     assert p1.is_a_friend?(p4)
@@ -867,7 +867,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     p1.add_friend(p2)
     assert p1.is_a_friend?(p2)
-    assert !p1.is_a_friend?(p3)
+    refute p1.is_a_friend?(p3)
     p1.add_friend(p4)
     assert p1.is_a_friend?(p4)
@@ -886,7 +886,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     p1.add_friend(p2)
     assert p1.is_a_friend?(p2)
-    assert !p1.is_a_friend?(p3)
+    refute p1.is_a_friend?(p3)
     p1.add_friend(p4)
     assert p1.is_a_friend?(p4)
@@ -913,7 +913,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     assert p1.is_member_of?(community)
     community.add_member(p3)
     assert p3.is_member_of?(community)
-    assert !p2.is_member_of?(community)
+    refute p2.is_member_of?(community)
     process_delayed_job_queue
     action_tracker = fast_create(ActionTracker::Record, :verb => 'create_article')
@@ -943,7 +943,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     assert p3.is_member_of?(community)
     community.add_member(p4)
     assert p4.is_member_of?(community)
-    assert !p2.is_member_of?(community)
+    refute p2.is_member_of?(community)
     action_tracker = fast_create(ActionTracker::Record)
     article = mock()
@@ -990,14 +990,14 @@ class PersonTest &lt; ActiveSupport::TestCase
     p1, p2 = fast_create(Person), fast_create(Person)
     s = fast_create(Scrap, :sender_id => p1.id, :receiver_id => p1.id)
     assert p1.can_control_scrap?(s)
-    assert !p2.can_control_scrap?(s)
+    refute p2.can_control_scrap?(s)
   end
   should "control activity or not" do
     p1, p2 = fast_create(Person), fast_create(Person)
     a = fast_create(ActionTracker::Record, :user_id => p2.id)
     n = fast_create(ActionTrackerNotification, :profile_id => p2.id, :action_tracker_id => a.id)
-    assert !p1.reload.can_control_activity?(a)
+    refute p1.reload.can_control_activity?(a)
     assert p2.reload.can_control_activity?(a)
   end
@@ -1121,7 +1121,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     organization.add_admin(person)
     assert person.is_last_admin_leaving?(organization, [])
-    assert !person.is_last_admin_leaving?(organization, [Role.find_by_key('profile_admin')])
+    refute person.is_last_admin_leaving?(organization, [Role.find_by_key('profile_admin')])
   end
   should 'return unique members of a community' do
@@ -1226,7 +1226,7 @@ class PersonTest &lt; ActiveSupport::TestCase
   should 'check if person already reported profile' do
     person = create_user('some-user').person
     profile = fast_create(Profile)
-    assert !person.already_reported?(profile)
+    refute person.already_reported?(profile)
     person.register_report(build(AbuseReport, :reason => 'some reason'), profile)
     person.reload
@@ -1240,7 +1240,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     person.disable
-    assert !person.visible
+    refute person.visible
     assert_not_equal password, person.user.password
   end
@@ -1334,7 +1334,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     person = create_user('person').person
     assert abuser.abuser?
-    assert !person.abuser?
+    refute person.abuser?
   end
   should 'be able to retrieve abusers and non abusers' do
@@ -1661,19 +1661,19 @@ class PersonTest &lt; ActiveSupport::TestCase
     comment = fast_create(Comment)
     person = fast_create(Person)
-    assert !person.voted_for?(comment)
+    refute person.voted_for?(comment)
     person.vote_for(comment)
     assert person.voted_for?(comment)
-    assert !person.voted_against?(comment)
+    refute person.voted_against?(comment)
   end
   should 'vote against a comment' do
     comment = fast_create(Comment)
     person = fast_create(Person)
-    assert !person.voted_against?(comment)
+    refute person.voted_against?(comment)
     person.vote_against(comment)
-    assert !person.voted_for?(comment)
+    refute person.voted_for?(comment)
     assert person.voted_against?(comment)
   end
@@ -1682,7 +1682,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     person = fast_create(Person)
     assert person.vote_against(comment)
-    assert !person.vote_against(comment)
+    refute person.vote_against(comment)
   end
   should 'do not vote for a comment twice' do
@@ -1690,7 +1690,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     person = fast_create(Person)
     assert person.vote_for(comment)
-    assert !person.vote_for(comment)
+    refute person.vote_for(comment)
   end
   should 'not vote against a voted for comment' do
@@ -1700,7 +1700,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     person.vote_for(comment)
     person.vote_against(comment)
     assert person.voted_for?(comment)
-    assert !person.voted_against?(comment)
+    refute person.voted_against?(comment)
   end
   should 'not vote for a voted against comment' do
@@ -1709,7 +1709,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     person.vote_against(comment)
     person.vote_for(comment)
-    assert !person.voted_for?(comment)
+    refute person.voted_for?(comment)
     assert person.voted_against?(comment)
   end
@@ -1720,7 +1720,7 @@ class PersonTest &lt; ActiveSupport::TestCase
     person.vote_for(comment)
     assert person.voted_for?(comment)
     person.votes.for_voteable(comment).destroy_all
-    assert !person.voted_for?(comment)
+    refute person.voted_for?(comment)
   end
   should 'count comments voted' do
@@ -1751,19 +1751,19 @@ class PersonTest &lt; ActiveSupport::TestCase
     article = fast_create(Article)
     person = fast_create(Person)
-    assert !person.voted_for?(article)
+    refute person.voted_for?(article)
     person.vote_for(article)
     assert person.voted_for?(article)
-    assert !person.voted_against?(article)
+    refute person.voted_against?(article)
   end
   should 'vote against a article' do
     article = fast_create(Article)
     person = fast_create(Person)
-    assert !person.voted_against?(article)
+    refute person.voted_against?(article)
     person.vote_against(article)
-    assert !person.voted_for?(article)
+    refute person.voted_for?(article)
     assert person.voted_against?(article)
   end
@@ -11,7 +11,7 @@ class ProductCategoriesBlockTest &lt; ActiveSupport::TestCase
     assert block.visible?
     block.box.environment.disable('products_for_enterprises')
-    assert !block.visible?
+    refute block.visible?
   end
   should 'have display option to show only on catalog' do
@@ -29,7 +29,7 @@ class ProductCategoriesBlockTest &lt; ActiveSupport::TestCase
     block.box = box
     block.box.environment.enable('products_for_enterprises')
-    assert !block.visible?(:params => {:controller => 'any_other'})
+    refute block.visible?(:params => {:controller => 'any_other'})
     assert block.visible?(:params => {:controller => 'catalog'})
   end
 end
@@ -130,7 +130,7 @@ class ProductTest &lt; ActiveSupport::TestCase
     e1.public_profile = false
     e1.save!; p1.reload;
-    assert !p1.public?
+    refute p1.public?
   end
   should 'accept prices in american\'s or brazilian\'s currency format' do
@@ -267,7 +267,7 @@ class ProductTest &lt; ActiveSupport::TestCase
   should 'has basic info if filled unit, price or discount' do
     product = Product.new
-    assert !product.has_basic_info?
+    refute product.has_basic_info?
     product = build(Product, :unit => Unit.new)
     assert product.has_basic_info?
@@ -349,7 +349,7 @@ class ProductTest &lt; ActiveSupport::TestCase
     product = fast_create(Product, :price => 30.0)
     first = fast_create(Input, :product_id => product.id, :product_category_id => fast_create(ProductCategory).id, :price_per_unit => 20.0, :amount_used => 1)
-    assert !Product.find(product.id).price_described?
+    refute Product.find(product.id).price_described?
     second = fast_create(Input, :product_id => product.id, :product_category_id => fast_create(ProductCategory).id, :price_per_unit => 10.0, :amount_used => 1)
     assert Product.find(product.id).price_described?
@@ -375,7 +375,7 @@ class ProductTest &lt; ActiveSupport::TestCase
     cost = fast_create(ProductionCost, :owner_id => Environment.default.id, :owner_type => 'Environment')
     cost2 = fast_create(ProductionCost, :owner_id => Environment.default.id, :owner_type => 'Environment')
     price_detail = product.price_details.create(:production_cost_id => cost.id, :price => 10)
-    assert !product.price_details.empty?
+    refute product.price_details.empty?
     product.update_price_details([{:production_cost_id => cost.id, :price => 20}, {:production_cost_id => cost2.id, :price => 30}])
     assert_equal 20, product.price_details.find_by_production_cost_id(cost.id).price
@@ -9,7 +9,7 @@ class ProductionCostTest &lt; ActiveSupport::TestCase
     p.name = 'Taxes'
     p.valid?
-    assert !p.errors[:name.to_s].present?
+    refute p.errors[:name.to_s].present?
   end
   should 'not validates name if it is blank' do
@@ -28,7 +28,7 @@ class ProductionCostTest &lt; ActiveSupport::TestCase
     p.name = 'a'*30
     p.valid?
-    assert !p.errors[:name.to_s].present?
+    refute p.errors[:name.to_s].present?
   end
   should 'not have duplicated name on same environment' do
@@ -58,7 +58,7 @@ class ProductionCostTest &lt; ActiveSupport::TestCase
     cost2.valid?
-    assert !cost2.errors[:name.to_s].present?
+    refute cost2.errors[:name.to_s].present?
   end
   should 'allow duplicated name on different enterprises' do
@@ -70,7 +70,7 @@ class ProductionCostTest &lt; ActiveSupport::TestCase
     cost2.valid?
-    assert !cost2.errors[:name.to_s].present?
+    refute cost2.errors[:name.to_s].present?
   end
   should 'be associated to an environment as owner' do
@@ -80,7 +80,7 @@ class ProductionCostTest &lt; ActiveSupport::TestCase
     p.owner = Environment.default
     p.valid?
-    assert !p.errors[:owner.to_s].present?
+    refute p.errors[:owner.to_s].present?
   end
   should 'be associated to an enterprise as owner' do
@@ -91,7 +91,7 @@ class ProductionCostTest &lt; ActiveSupport::TestCase
     p.owner = enterprise
     p.valid?
-    assert !p.errors[:owner.to_s].present?
+    refute p.errors[:owner.to_s].present?
   end
   should 'create a production cost on an enterprise' do
@@ -19,19 +19,19 @@ class ProfileTest &lt; ActiveSupport::TestCase
     p.identifier = 'rightformat2007'
     p.valid?
-    assert ! p.errors[:identifier.to_s].present?
+    refute  p.errors[:identifier.to_s].present?
     p.identifier = 'rightformat'
     p.valid?
-    assert ! p.errors[:identifier.to_s].present?
+    refute  p.errors[:identifier.to_s].present?
     p.identifier = 'right_format'
     p.valid?
-    assert ! p.errors[:identifier.to_s].present?
+    refute  p.errors[:identifier.to_s].present?
     p.identifier = 'identifier-with-dashes'
     p.valid?
-    assert ! p.errors[:identifier.to_s].present?, 'Profile should accept identifier with dashes'
+    refute  p.errors[:identifier.to_s].present?, 'Profile should accept identifier with dashes'
   end
   def test_has_domains
@@ -63,11 +63,11 @@ class ProfileTest &lt; ActiveSupport::TestCase
   should 'set default environment for users created' do
     user = create_user 'mytestuser'
     assert_equal 'mytestuser', user.login
-    assert !user.new_record?
+    refute user.new_record?
     p = user.person
-    assert !p.new_record?
+    refute p.new_record?
     assert_equal 'mytestuser', p.identifier
     e = p.environment
     assert_equal Environment.default, e
@@ -84,7 +84,7 @@ class ProfileTest &lt; ActiveSupport::TestCase
     assert p.errors[:name.to_s].present?
     p.name = 'a very unprobable name'
     p.valid?
-    assert !p.errors[:name.to_s].present?
+    refute p.errors[:name.to_s].present?
   end
   def test_can_have_affiliated_people
@@ -178,7 +178,7 @@ class ProfileTest &lt; ActiveSupport::TestCase
     top = profile.top_level_articles
     assert top.include?(p1)
     assert top.include?(p2)
-    assert !top.include?(child)
+    refute top.include?(child)
   end
   should 'be able to optionally reload the list of top level articles' do
@@ -420,15 +420,15 @@ class ProfileTest &lt; ActiveSupport::TestCase
   should 'not advertise articles created together with the profile' do
     Profile.any_instance.stubs(:default_set_of_articles).returns([Article.new(:name => 'home'), RssFeed.new(:name => 'feed')])
     profile = create(Profile)
-    assert !profile.articles.find_by_path('home').advertise?
-    assert !profile.articles.find_by_path('feed').advertise?
+    refute profile.articles.find_by_path('home').advertise?
+    refute profile.articles.find_by_path('feed').advertise?
   end
   should 'advertise article after update' do
     Profile.any_instance.stubs(:default_set_of_articles).returns([Article.new(:name => 'home')])
     profile = create(Profile)
     article = profile.articles.find_by_path('home')
-    assert !article.advertise?
+    refute article.advertise?
     article.name = 'Changed name'
     article.save!
     assert article.advertise?
@@ -482,7 +482,7 @@ class ProfileTest &lt; ActiveSupport::TestCase
   end
   should 'not display private profile to unauthenticated user' do
-    assert !Profile.new(:public_profile => false).display_info_to?(nil)
+    refute Profile.new(:public_profile => false).display_info_to?(nil)
   end
   should 'display private profile for its owner' do
@@ -640,11 +640,11 @@ class ProfileTest &lt; ActiveSupport::TestCase
   end
   should 'not accept product category as category' do
-    assert !Profile.new.accept_category?(ProductCategory.new)
+    refute Profile.new.accept_category?(ProductCategory.new)
   end
   should 'not accept region as a category' do
-    assert !Profile.new.accept_category?(Region.new)
+    refute Profile.new.accept_category?(Region.new)
   end
   should 'query region for location' do
@@ -886,7 +886,7 @@ class ProfileTest &lt; ActiveSupport::TestCase
     p2 = fast_create(Profile, :public_profile => false)
     assert p1.public?
-    assert !p2.public?
+    refute p2.public?
   end
   should 'remove member with many roles' do
@@ -964,7 +964,7 @@ class ProfileTest &lt; ActiveSupport::TestCase
     a_copy = p.articles[0]
-    assert !a_copy.advertise
+    refute a_copy.advertise
   end
   should 'copy set of boxes from profile template' do
@@ -1115,7 +1115,7 @@ class ProfileTest &lt; ActiveSupport::TestCase
     template.boxes[0].blocks << b
     p = create(Profile)
-    assert !b[:title].blank?
+    refute b[:title].blank?
     p.copy_blocks_from(template)
@@ -1130,7 +1130,7 @@ class ProfileTest &lt; ActiveSupport::TestCase
     template.boxes[0].blocks << b
     p = create(Profile)
-    assert !b[:title].blank?
+    refute b[:title].blank?
     p.copy_blocks_from(template)
@@ -1205,7 +1205,7 @@ class ProfileTest &lt; ActiveSupport::TestCase
     p1 = fast_create(Profile, :identifier => 'mytestprofile', :environment_id => env.id)
     p2 = build(Profile, :identifier => 'mytestprofile', :environment => env)
-    assert !p2.valid?
+    refute p2.valid?
     assert p2.errors[:identifier]
     assert_equal p1.environment, p2.environment
   end
@@ -1227,7 +1227,7 @@ class ProfileTest &lt; ActiveSupport::TestCase
   should 'not has blog' do
     p = fast_create(Profile)
-    assert !p.has_blog?
+    refute p.has_blog?
   end
   should 'get nil when no blog' do
@@ -1369,14 +1369,14 @@ class ProfileTest &lt; ActiveSupport::TestCase
     child = profile.articles.create!(:name => 'child', :parent => p1)
     profile.reload
     assert_equivalent [p1, p2], profile.folders
-    assert !profile.folders.include?(child)
+    refute profile.folders.include?(child)
   end
   should 'profile is invalid when image not valid' do
     profile = build(Profile, :image_builder => {:uploaded_data => fixture_file_upload('/files/rails.png', 'image/png')})
     profile.image.expects(:valid?).returns(false).at_least_once
     profile.image.errors.add(:size, "fake error")
-    assert !profile.valid?
+    refute profile.valid?
   end
   should 'profile be valid when image is empty' do
@@ -1411,7 +1411,7 @@ class ProfileTest &lt; ActiveSupport::TestCase
     template.is_template = true
     template.save!
     profile.valid?
-    assert !profile.errors[:template.to_s].present?
+    refute profile.errors[:template.to_s].present?
   end
   should 'be able to have a template' do
@@ -1802,7 +1802,7 @@ class ProfileTest &lt; ActiveSupport::TestCase
   should 'not have forum' do
     p = fast_create(Profile)
-    assert !p.has_forum?
+    refute p.has_forum?
   end
   should 'get nil when no forum' do
@@ -1839,7 +1839,7 @@ class ProfileTest &lt; ActiveSupport::TestCase
   should 'know if url is the profile homepage' do
     profile = fast_create(Profile)
-    assert !profile.is_on_homepage?("/#{profile.identifier}/any_page")
+    refute profile.is_on_homepage?("/#{profile.identifier}/any_page")
     assert profile.is_on_homepage?("/#{profile.identifier}")
   end
@@ -1851,7 +1851,7 @@ class ProfileTest &lt; ActiveSupport::TestCase
     profile.home_page = homepage
     profile.save
-    assert !profile.is_on_homepage?("/#{profile.identifier}/#{not_homepage.slug}",not_homepage)
+    refute profile.is_on_homepage?("/#{profile.identifier}/#{not_homepage.slug}",not_homepage)
     assert profile.is_on_homepage?("/#{profile.identifier}/#{homepage.slug}", homepage)
   end
@@ -1958,7 +1958,7 @@ class ProfileTest &lt; ActiveSupport::TestCase
   def assert_invalid_identifier(id)
     profile = Profile.new(:identifier => id)
-    assert !profile.valid?
+    refute profile.valid?
     assert profile.errors[:identifier.to_s].present?
   end
@@ -1987,7 +1987,7 @@ class ProfileTest &lt; ActiveSupport::TestCase
     Environment.login_redirection_options.keys.each do |redirection|
       profile.redirection_after_login = redirection
       profile.save
-      assert !profile.errors[:redirection_after_login.to_s].present?
+      refute profile.errors[:redirection_after_login.to_s].present?
     end
   end
@@ -2009,7 +2009,7 @@ class ProfileTest &lt; ActiveSupport::TestCase
     profile = fast_create(Profile)
     profile.stubs(:active_fields).returns(['field'])
     profile.stubs(:public_fields).returns([])
-    assert !profile.may_display_field_to?('field', nil)
+    refute profile.may_display_field_to?('field', nil)
   end
   should 'not display field if field is active but not public and user is not friend' do
@@ -2018,7 +2018,7 @@ class ProfileTest &lt; ActiveSupport::TestCase
     profile.expects(:public_fields).returns([])
     user = mock
     user.expects(:is_a_friend?).with(profile).returns(false)
-    assert !profile.may_display_field_to?('field', user)
+    refute profile.may_display_field_to?('field', user)
   end
   should 'display field if field is active and not public but user is profile owner' do
@@ -2057,7 +2057,7 @@ class ProfileTest &lt; ActiveSupport::TestCase
     assert profile.may_display_location_to?(user)
     profile.stubs(:may_display_field_to?).with(Profile::LOCATION_FIELDS[0], user).returns(false)
-    assert !profile.may_display_location_to?(user)
+    refute profile.may_display_location_to?(user)
   end
   should 'destroy profile if its environment is destroyed' do
@@ -2099,13 +2099,13 @@ class ProfileTest &lt; ActiveSupport::TestCase
   end
   should 'not copy rss_feed' do
-    assert !fast_create(Profile).copy_article?(fast_create(RssFeed))
+    refute fast_create(Profile).copy_article?(fast_create(RssFeed))
   end
   should 'not copy template welcome_page' do
     template = fast_create(Person, :is_template => true)
     welcome_page = fast_create(TinyMceArticle, :slug => 'welcome-page', :profile_id => template.id)
-    assert !template.copy_article?(welcome_page)
+    refute template.copy_article?(welcome_page)
   end
   should 'return nil on welcome_page_content if template has no welcome page' do
@@ -5,7 +5,7 @@ class QualifierTest &lt; ActiveSupport::TestCase
   should 'environment is mandatory' do
     qualifier = Qualifier.new(:name => 'Qualifier without environment')
-    assert !qualifier.valid?
+    refute qualifier.valid?
     qualifier.environment = fast_create(Environment)
     assert qualifier.valid?
@@ -25,7 +25,7 @@ class QualifierTest &lt; ActiveSupport::TestCase
   should 'name is mandatory' do
     env_one = fast_create(Environment)
     qualifier = env_one.qualifiers.build
-    assert !qualifier.valid?
+    refute qualifier.valid?
     qualifier.name = 'Qualifier name'
     assert qualifier.valid?
@@ -26,7 +26,7 @@ class RegionTest &lt; ActiveSupport::TestCase
   should 'has no validator' do
     env = fast_create(Environment)
     region = fast_create(Region, :environment_id => env.id, :name => 'My Region')
-    assert !region.has_validator?
+    refute region.has_validator?
   end
   should 'list regions with validators' do
@@ -15,7 +15,7 @@ class RssFeedTest &lt; ActiveSupport::TestCase
       :search => 'parent_and_children',
     }
     feed.valid?
-    assert !feed.errors['body'.to_s].present?
+    refute feed.errors['body'.to_s].present?
   end
   should 'alias body as "settings"' do
@@ -172,11 +172,11 @@ class RssFeedTest &lt; ActiveSupport::TestCase
     feed.include = 'parent_and_children'
     feed.valid?
-    assert !feed.errors[:include.to_s].present?
+    refute feed.errors[:include.to_s].present?
     feed.include = 'all'
     feed.valid?
-    assert !feed.errors[:include.to_s].present?
+    refute feed.errors[:include.to_s].present?
   end
   should 'provide proper short description' do
@@ -194,7 +194,7 @@ class RssFeedTest &lt; ActiveSupport::TestCase
   should 'advertise is false before create' do
     profile = create_user('testuser').person
     feed = create(RssFeed, :name => 'testfeed', :profile => profile)
-    assert !feed.advertise?
+    refute feed.advertise?
   end
   should 'can display hits' do
@@ -23,9 +23,9 @@ class ScopeToolTest &lt; ActiveSupport::TestCase
     assert orgs.include? ent2
     orgs = orgs.visible
     assert orgs.include? cmm1
-    assert !orgs.include?(cmm2)
+    refute orgs.include?(cmm2)
     assert orgs.include? ent1
-    assert !orgs.include?(ent2)
+    refute orgs.include?(ent2)
   end
 end
@@ -19,7 +19,7 @@ class ScrapTest &lt; ActiveSupport::TestCase
     s.content = 'some content'
     s.valid?
-    assert !s.errors[:content.to_s].present?
+    refute s.errors[:content.to_s].present?
   end
   should "have the sender" do
@@ -29,7 +29,7 @@ class ScrapTest &lt; ActiveSupport::TestCase
     s.sender_id = 1
     s.valid?
-    assert !s.errors[:sender_id.to_s].present?
+    refute s.errors[:sender_id.to_s].present?
   end
   should "have the receiver" do
@@ -39,7 +39,7 @@ class ScrapTest &lt; ActiveSupport::TestCase
     s.receiver_id = 1
     s.valid?
-    assert !s.errors[:receiver_id.to_s].present?
+    refute s.errors[:receiver_id.to_s].present?
   end
   should "be associated to Person as sender" do
@@ -258,7 +258,7 @@ class ScrapTest &lt; ActiveSupport::TestCase
   should 'strip html before validate' do
     s, r = create_user.person, create_user.person
     s = build Scrap, :sender => s, :receiver => r, :content => "<p><b></b></p>"
-    assert !s.valid?
+    refute s.valid?
     s.content = "<p>Test</p>"
     assert s.valid?
   end
@@ -14,14 +14,14 @@ class SearchHelperTest &lt; ActiveSupport::TestCase
     stubs(:params).returns({:action => 'products', :display => 'map'})
     @results = {:products => [1,2]}
-    assert !multiple_search?
+    refute multiple_search?
   end
   should 'return whether on a map search' do
     stubs(:params).returns({:action => 'index', :display => 'map'})
     @results = {:articles => [1,2], :products => [1,2]}
     @query = ''
-    assert !map_search?
+    refute map_search?
     stubs(:params).returns({:action => 'products', :display => 'map'})
     @results = {:products => [1,2]}
@@ -10,7 +10,7 @@ class SearchTermOccurrenceTest &lt; ActiveSupport::TestCase
   should 'have term' do
     search_term_occurrence = SearchTermOccurrence.new
-    assert !search_term_occurrence.valid?
+    refute search_term_occurrence.valid?
     assert search_term_occurrence.errors.has_key?(:search_term)
   end
@@ -3,13 +3,13 @@ require &#39;test_helper&#39;
 class SearchTermTest < ActiveSupport::TestCase
   should 'have term' do
     search_term = SearchTerm.new
-    assert !search_term.valid?
+    refute search_term.valid?
     assert search_term.errors.has_key?(:term)
   end
   should 'have context' do
     search_term = SearchTerm.new
-    assert !search_term.valid?
+    refute search_term.valid?
     assert search_term.errors.has_key?(:context)
   end
@@ -21,12 +21,12 @@ class SearchTermTest &lt; ActiveSupport::TestCase
     search_term.asset = 'alternate_universe'
     search_term.valid?
-    assert !search_term.errors.has_key?(:term)
+    refute search_term.errors.has_key?(:term)
     search_term.asset = 'universe'
     search_term.context = fast_create(Profile)
     search_term.valid?
-    assert !search_term.errors.has_key?(:term)
+    refute search_term.errors.has_key?(:term)
   end
   should 'create a search term' do
@@ -13,28 +13,28 @@ class SuggestArticleTest &lt; ActiveSupport::TestCase
   should 'have the article_name' do
     t = SuggestArticle.new
-    assert !t.article_object.errors[:name].present?
+    refute t.article_object.errors[:name].present?
     t.article_object.valid?
     assert t.article_object.errors[:name].present?
   end
   should 'have the email' do
     t = SuggestArticle.new
-    assert !t.errors[:email.to_s].present?
+    refute t.errors[:email.to_s].present?
     t.valid?
     assert t.errors[:email.to_s].present?
   end
   should 'have the name' do
     t = SuggestArticle.new
-    assert !t.errors[:name.to_s].present?
+    refute t.errors[:name.to_s].present?
     t.valid?
     assert t.errors[:name.to_s].present?
   end
   should 'have the target_id' do
     t = SuggestArticle.new
-    assert !t.errors[:target_id.to_s].present?
+    refute t.errors[:target_id.to_s].present?
     t.valid?
     assert t.errors[:target_id.to_s].present?
   end
@@ -42,7 +42,7 @@ class SuggestArticleTest &lt; ActiveSupport::TestCase
   should 'have the article' do
     t = SuggestArticle.new
     assert t.respond_to?(:article_object)
-    assert !t.errors[:article_object].present?
+    refute t.errors[:article_object].present?
     t.valid?
     assert t.errors[:article_object].present?
   end
@@ -31,7 +31,7 @@ class TaskMailerTest &lt; ActiveSupport::TestCase
     task.expects(:environment).returns(environment).at_least_once
     task.send(:send_notification, :finished).deliver
-    assert !ActionMailer::Base.deliveries.empty?
+    refute ActionMailer::Base.deliveries.empty?
   end
   should 'be able to send a "task cancelled" message' do
@@ -54,7 +54,7 @@ class TaskMailerTest &lt; ActiveSupport::TestCase
     task.expects(:environment).returns(environment).at_least_once
     task.send(:send_notification, :cancelled).deliver
-    assert !ActionMailer::Base.deliveries.empty?
+    refute ActionMailer::Base.deliveries.empty?
   end
   should 'be able to send a "task created" message' do
@@ -78,7 +78,7 @@ class TaskMailerTest &lt; ActiveSupport::TestCase
     task.expects(:environment).returns(environment).at_least_once
     task.send(:send_notification, :created).deliver
-    assert !ActionMailer::Base.deliveries.empty?
+    refute ActionMailer::Base.deliveries.empty?
   end
   should 'be able to send a "target notification" message' do
@@ -88,7 +88,7 @@ class TaskMailerTest &lt; ActiveSupport::TestCase
     task.expects(:target_notification_description).returns('the task')
     TaskMailer.target_notification(task, 'the message').deliver
-    assert !ActionMailer::Base.deliveries.empty?
+    refute ActionMailer::Base.deliveries.empty?
   end
   should 'be able to send a "invitation notification" message' do
@@ -121,7 +121,7 @@ class TaskMailerTest &lt; ActiveSupport::TestCase
     assert_equal "Hello friend name, my name invite you, please follow this link: http://example.com/account/signup?invitation_code=123456", mail.body.to_s
     mail.deliver
-    assert !ActionMailer::Base.deliveries.empty?
+    refute ActionMailer::Base.deliveries.empty?
   end
   should 'use environment name and no-reply email' do
@@ -114,7 +114,7 @@ class TaskTest &lt; ActiveSupport::TestCase
     task1 = Task.create!
     task2 = build(Task, :code => task1.code)
-    assert !task2.valid?
+    refute task2.valid?
     assert task2.errors[:code.to_s].present?
   end
@@ -391,15 +391,15 @@ class TaskTest &lt; ActiveSupport::TestCase
     t = Task.new
     t.spam = true
     assert t.spam?
-    assert !t.ham?
+    refute t.ham?
     t.spam = false
     assert t.ham?
-    assert !t.spam?
+    refute t.spam?
     t.spam = nil
-    assert !t.spam?
-    assert !t.ham?
+    refute t.spam?
+    refute t.ham?
   end
   should 'be able to select non-spam tasks' do
@@ -92,7 +92,7 @@ class TextArticleTest &lt; ActiveSupport::TestCase
     text = TextArticle.new(:profile => profile)
-    assert !text.translatable?
+    refute text.translatable?
   end
   should 'be translatable if there is languages on environment' do
@@ -101,7 +101,7 @@ class TextArticleTest &lt; ActiveSupport::TestCase
     profile = fast_create(Person, :environment_id => environment.id)
     text = fast_create(TextArticle, :profile_id => profile.id)
-    assert !text.translatable?
+    refute text.translatable?
     environment.languages = ['en','pt','fr']
     environment.save
@@ -167,7 +167,7 @@ class ThemeTest &lt; ActiveSupport::TestCase
     [Theme.find(t2.id), Theme.find(t1.id)].each do |theme|
       assert Theme.approved_themes(profile).include?(theme)
     end
-    assert ! Theme.approved_themes(profile).include?(Theme.find(t3.id))
+    refute  Theme.approved_themes(profile).include?(Theme.find(t3.id))
   end
   should 'not list non theme files or dirs inside themes dir' do
@@ -188,7 +188,7 @@ class ThemeTest &lt; ActiveSupport::TestCase
   end
   should 'not be public by default' do
-    assert ! Theme.new('test').public
+    refute  Theme.new('test').public
   end
   should 'not crash with nil or invalid owner_type' do
@@ -18,7 +18,7 @@ class TranslatableContentTest &lt; ActiveSupport::TestCase
   should 'not be translatable if parent is a forum' do
     content.parent = Forum.new
-    assert !content.translatable?
+    refute content.translatable?
   end
   should 'be translatable if parent is not a forum' do
@@ -74,7 +74,7 @@ class UploadedFileTest &lt; ActiveSupport::TestCase
   should 'not upload files bigger than max_size' do
     f = build(UploadedFile, :profile => @profile, :uploaded_data => fixture_file_upload('/files/rails.png', 'image/png'))
     f.expects(:size).returns(UploadedFile.attachment_options[:max_size] + 1024)
-    assert !f.valid?
+    refute f.valid?
   end
   should 'upload files smaller than max_size' do
@@ -175,7 +175,7 @@ class UploadedFileTest &lt; ActiveSupport::TestCase
   end
   should 'return false by default in thumbnails_processed' do
-    assert !UploadedFile.new.thumbnails_processed
+    refute UploadedFile.new.thumbnails_processed
   end
   should 'set thumbnails_processed to true' do
@@ -10,7 +10,7 @@ class UserTest &lt; ActiveSupport::TestCase
   def test_should_create_user
     assert_difference 'User.count' do
       user = new_user
-      assert !user.new_record?, "#{user.errors.full_messages.to_sentence}"
+      refute user.new_record?, "#{user.errors.full_messages.to_sentence}"
     end
   end
@@ -110,15 +110,15 @@ class UserTest &lt; ActiveSupport::TestCase
     u.login = 'rightformat2007'
     u.valid?
-    assert ! u.errors[:login.to_s].present?
+    refute  u.errors[:login.to_s].present?
     u.login = 'rightformat'
     u.valid?
-    assert ! u.errors[:login.to_s].present?
+    refute  u.errors[:login.to_s].present?
     u.login = 'right_format'
     u.valid?
-    assert ! u.errors[:login.to_s].present?
+    refute  u.errors[:login.to_s].present?
   end
   def test_should_change_password
@@ -126,7 +126,7 @@ class UserTest &lt; ActiveSupport::TestCase
     assert_nothing_raised do
       user.change_password!('test', 'newpass', 'newpass')
     end
-    assert !user.authenticated?('test')
+    refute user.authenticated?('test')
     assert user.authenticated?('newpass')
   end
@@ -135,7 +135,7 @@ class UserTest &lt; ActiveSupport::TestCase
     assert_raise User::IncorrectPassword do
       user.change_password!('wrong', 'newpass', 'newpass')
     end
-    assert !user.authenticated?('newpass')
+    refute user.authenticated?('newpass')
     assert user.authenticated?('test')
   end
@@ -144,7 +144,7 @@ class UserTest &lt; ActiveSupport::TestCase
     assert_raise ActiveRecord::RecordInvalid do
       user.force_change_password!('newpass', 'newpasswrong')
     end
-    assert !user.authenticated?('newpass')
+    refute user.authenticated?('newpass')
     assert user.authenticated?('test')
   end
@@ -158,7 +158,7 @@ class UserTest &lt; ActiveSupport::TestCase
   def test_should_create_person_when_creating_user
     count = Person.count
-    assert !Person.find_by_identifier('lalala')
+    refute Person.find_by_identifier('lalala')
     new_user(:login => 'lalala', :email => 'lalala@example.com')
     assert Person.find_by_identifier('lalala')
   end
@@ -174,7 +174,7 @@ class UserTest &lt; ActiveSupport::TestCase
     user = new_user(:login => 'lalala', :email => 'lalala@example.com')
     assert Person.find_by_identifier('lalala')
     user.destroy
-    assert !Person.find_by_identifier('lalala')
+    refute Person.find_by_identifier('lalala')
   end
   def test_should_encrypt_password_with_salted_sha1
@@ -291,7 +291,7 @@ class UserTest &lt; ActiveSupport::TestCase
   should 'enable email' do
     user = create_user('cooler')
-    assert !user.enable_email
+    refute user.enable_email
     assert user.enable_email!
     assert user.enable_email
   end
@@ -307,7 +307,7 @@ class UserTest &lt; ActiveSupport::TestCase
     user = create_user('cooler')
     user.expects(:environment).returns(nil)
     EmailActivation.create!(:requestor => user.person, :target => Environment.default)
-    assert !user.email_activation_pending?
+    refute user.email_activation_pending?
   end
   should 'has moderate registration pending' do
@@ -318,7 +318,7 @@ class UserTest &lt; ActiveSupport::TestCase
   should 'not has moderate registration pending if not have a pending task' do
     user = create_user('cooler')
-    assert !user.moderate_registration_pending?
+    refute user.moderate_registration_pending?
   end
   should 'be able to use [] operator to find users by login' do
@@ -527,7 +527,7 @@ class UserTest &lt; ActiveSupport::TestCase
     user = new_user
     assert_not_nil user.activation_code
     assert_nil user.activated_at
-    assert !user.person.visible
+    refute user.person.visible
   end
   should 'activate an user' do
@@ -540,7 +540,7 @@ class UserTest &lt; ActiveSupport::TestCase
   should 'return if the user is activated' do
     user = new_user
-    assert !user.activated?
+    refute user.activated?
     user.activate
     assert user.activated?
   end
@@ -573,7 +573,7 @@ class UserTest &lt; ActiveSupport::TestCase
     user.activate
     assert user.deactivate
     assert_nil user.activated_at
-    assert !user.person.visible
+    refute user.person.visible
   end
   should 'return if the user is deactivated' do
@@ -581,7 +581,7 @@ class UserTest &lt; ActiveSupport::TestCase
     user.activate
     assert user.activated?
     user.deactivate
-    assert !user.activated?
+    refute user.activated?
   end
   should 'activate right after creation when confirmation is not required' do
@@ -595,7 +595,7 @@ class UserTest &lt; ActiveSupport::TestCase
   should 'cancel activation if user has no person associated' do
     user = new_user
     user.stubs(:person).returns(nil)
-    assert !user.activate
+    refute user.activate
   end
   should 'be able to skip the password requirement' do
@@ -8,7 +8,7 @@ class ValidationInfoTest &lt; ActiveSupport::TestCase
     assert info.errors[:validation_methodology].any?
     info.validation_methodology = 'lalala'
     info.valid?
-    assert !info.errors[:validation_methodology].any?
+    refute info.errors[:validation_methodology].any?
   end
   should 'refer to and validate the presence of an organization' do
	@@ -7,11 +7,11 @@ class BreadcrumbsPluginTest < ActiveSupport::TestCase		@@ -7,11 +7,11 @@ class BreadcrumbsPluginTest < ActiveSupport::TestCase
7	end	7	end
8		8
9	should 'has a name' do	9	should 'has a name' do
10	- assert !BreadcrumbsPlugin.plugin_name.blank?	10	+ refute BreadcrumbsPlugin.plugin_name.blank?
11	end	11	end
12		12
13	should 'has a description' do	13	should 'has a description' do
14	- assert !BreadcrumbsPlugin.plugin_description.blank?	14	+ refute BreadcrumbsPlugin.plugin_description.blank?
15	end	15	end
16		16
17	should 'add a block' do	17	should 'add a block' do
	@@ -69,7 +69,7 @@ class ContentBreadcrumbsBlockTest < ActiveSupport::TestCase		@@ -69,7 +69,7 @@ class ContentBreadcrumbsBlockTest < ActiveSupport::TestCase
69	end	69	end
70		70
71	should 'not be cacheable' do	71	should 'not be cacheable' do
72	- assert !@block.cacheable?	72	+ refute @block.cacheable?
73	end	73	end
74		74
75	end	75	end
	@@ -76,6 +76,6 @@ class BscPluginAdminControllerTest < ActionController::TestCase		@@ -76,6 +76,6 @@ class BscPluginAdminControllerTest < ActionController::TestCase
76		76
77	assert e1.validated	77	assert e1.validated
78	assert e2.validated	78	assert e2.validated
79	- assert !e3.validated	79	+ refute e3.validated
80	end	80	end
81	end	81	end
	@@ -41,7 +41,7 @@ class BscPlugin::BscTest < ActiveSupport::TestCase		@@ -41,7 +41,7 @@ class BscPlugin::BscTest < ActiveSupport::TestCase
41	bsc.enterprise_requests.stubs(:pending).returns([task])	41	bsc.enterprise_requests.stubs(:pending).returns([task])
42		42
43	assert bsc.already_requested?(e1)	43	assert bsc.already_requested?(e1)
44	- assert !bsc.already_requested?(e2)	44	+ refute bsc.already_requested?(e2)
45	end	45	end
46		46
47	should 'return associated enterprises products' do	47	should 'return associated enterprises products' do
	@@ -68,7 +68,7 @@ class BscPlugin::BscTest < ActiveSupport::TestCase		@@ -68,7 +68,7 @@ class BscPlugin::BscTest < ActiveSupport::TestCase
68	end	68	end
69		69
70	should 'not be able to create product' do	70	should 'not be able to create product' do
71	- assert !bsc.create_product?	71	+ refute bsc.create_product?
72	end	72	end
73		73
74	should 'have many contracts' do	74	should 'have many contracts' do
	@@ -14,7 +14,7 @@ class BscPlugin::ContractTest < ActiveSupport::TestCase		@@ -14,7 +14,7 @@ class BscPlugin::ContractTest < ActiveSupport::TestCase
14		14
15	contract.bsc = BscPlugin::Bsc.new	15	contract.bsc = BscPlugin::Bsc.new
16	contract.valid?	16	contract.valid?
17	- assert !contract.errors.invalid?(:bsc)	17	+ refute contract.errors.invalid?(:bsc)
18	end	18	end
19		19
20	should 'associate contract with products through sales' do	20	should 'associate contract with products through sales' do
	@@ -19,7 +19,7 @@ class ArticleTest < ActiveSupport::TestCase		@@ -19,7 +19,7 @@ class ArticleTest < ActiveSupport::TestCase
19	should 'do not allow a exclusion of a group comment macro if this group has comments' do	19	should 'do not allow a exclusion of a group comment macro if this group has comments' do
20	article.body = "<div class=\"macro\" data-macro-group_id=2></div>"	20	article.body = "<div class=\"macro\" data-macro-group_id=2></div>"
21	comment1 = fast_create(Comment, :group_id => 1, :source_id => article.id)	21	comment1 = fast_create(Comment, :group_id => 1, :source_id => article.id)
22	- assert !article.save	22	+ refute article.save
23	assert_equal ['Not empty group comment cannot be removed'], article.errors[:base]	23	assert_equal ['Not empty group comment cannot be removed'], article.errors[:base]
24	end	24	end
25		25
	@@ -18,7 +18,7 @@ class CommentGroupPluginTest < ActiveSupport::TestCase		@@ -18,7 +18,7 @@ class CommentGroupPluginTest < ActiveSupport::TestCase
18	end	18	end
19		19
20	should 'have a js file' do	20	should 'have a js file' do
21	- assert !plugin.js_files.blank?	21	+ refute plugin.js_files.blank?
22	end	22	end
23		23
24	should 'have stylesheet' do	24	should 'have stylesheet' do
	@@ -52,7 +52,7 @@ class CommunityTrackPluginPublicControllerTest < ActionController::TestCase		@@ -52,7 +52,7 @@ class CommunityTrackPluginPublicControllerTest < ActionController::TestCase
52	should 'do not show more link in all tracks if there is no more tracks to show' do	52	should 'do not show more link in all tracks if there is no more tracks to show' do
53	CommunityTrackPlugin::Track.destroy_all	53	CommunityTrackPlugin::Track.destroy_all
54	get :all_tracks, :id => @block.id	54	get :all_tracks, :id => @block.id
55	- assert !assigns['show_more']	55	+ refute assigns['show_more']
56	assert_no_match /track_list_more_#{@block.id}/, @response.body	56	assert_no_match /track_list_more_#{@block.id}/, @response.body
57	end	57	end
58		58
	@@ -18,7 +18,7 @@ class ArticleTest < ActiveSupport::TestCase		@@ -18,7 +18,7 @@ class ArticleTest < ActiveSupport::TestCase
18	should 'do nothing if parent is not a step' do	18	should 'do nothing if parent is not a step' do
19	folder = fast_create(Folder, :profile_id => @profile.id)	19	folder = fast_create(Folder, :profile_id => @profile.id)
20	article = Article.create!(:parent => folder, :profile => @profile, :accept_comments => false, :name => "article")	20	article = Article.create!(:parent => folder, :profile => @profile, :accept_comments => false, :name => "article")
21	- assert !article.accept_comments	21	+ refute article.accept_comments
22	end	22	end
23		23
24	end	24	end
	@@ -24,20 +24,20 @@ class StepTest < ActiveSupport::TestCase		@@ -24,20 +24,20 @@ class StepTest < ActiveSupport::TestCase
24	should 'set accept_comments to false on create' do	24	should 'set accept_comments to false on create' do
25	today = Date.today	25	today = Date.today
26	step = CommunityTrackPlugin::Step.create(:name => 'Step', :body => 'body', :profile => @profile, :parent => @track, :start_date => today, :end_date => today, :published => true)	26	step = CommunityTrackPlugin::Step.create(:name => 'Step', :body => 'body', :profile => @profile, :parent => @track, :start_date => today, :end_date => today, :published => true)
27	- assert !step.accept_comments	27	+ refute step.accept_comments
28	end	28	end
29		29
30	should 'do not allow step creation with a parent that is not a track' do	30	should 'do not allow step creation with a parent that is not a track' do
31	today = Date.today	31	today = Date.today
32	blog = fast_create(Blog)	32	blog = fast_create(Blog)
33	step = CommunityTrackPlugin::Step.new(:name => 'Step', :body => 'body', :profile => @profile, :parent => blog, :start_date => today, :end_date => today, :published => true)	33	step = CommunityTrackPlugin::Step.new(:name => 'Step', :body => 'body', :profile => @profile, :parent => blog, :start_date => today, :end_date => today, :published => true)
34	- assert !step.save	34	+ refute step.save
35	end	35	end
36		36
37	should 'do not allow step creation without a parent' do	37	should 'do not allow step creation without a parent' do
38	today = Date.today	38	today = Date.today
39	step = CommunityTrackPlugin::Step.new(:name => 'Step', :body => 'body', :profile => @profile, :parent => nil, :start_date => today, :end_date => today, :published => true)	39	step = CommunityTrackPlugin::Step.new(:name => 'Step', :body => 'body', :profile => @profile, :parent => nil, :start_date => today, :end_date => today, :published => true)
40	- assert !step.save	40	+ refute step.save
41	end	41	end
42		42
43	should 'create step if end date is equal to start date' do	43	should 'create step if end date is equal to start date' do
	@@ -55,7 +55,7 @@ class StepTest < ActiveSupport::TestCase		@@ -55,7 +55,7 @@ class StepTest < ActiveSupport::TestCase
55	should 'do not create step if end date is before start date' do	55	should 'do not create step if end date is before start date' do
56	@step.start_date = Date.today	56	@step.start_date = Date.today
57	@step.end_date = Date.today - 1.day	57	@step.end_date = Date.today - 1.day
58	- assert !@step.save	58	+ refute @step.save
59	end	59	end
60		60
61	should 'do not validate date period if start date is nil' do	61	should 'do not validate date period if start date is nil' do
	@@ -146,7 +146,7 @@ class StepTest < ActiveSupport::TestCase		@@ -146,7 +146,7 @@ class StepTest < ActiveSupport::TestCase
146	end	146	end
147		147
148	should 'set position on save' do	148	should 'set position on save' do
149	- assert !@step.position	149	+ refute @step.position
150	@step.save!	150	@step.save!
151	assert_equal 1, @step.position	151	assert_equal 1, @step.position
152	step2 = CommunityTrackPlugin::Step.new(:name => 'Step2', :body => 'body', :profile => @profile, :parent => @track, :published => false, :end_date => Date.today, :start_date => Date.today)	152	step2 = CommunityTrackPlugin::Step.new(:name => 'Step2', :body => 'body', :profile => @profile, :parent => @track, :published => false, :end_date => Date.today, :start_date => Date.today)
	@@ -157,7 +157,7 @@ class StepTest < ActiveSupport::TestCase		@@ -157,7 +157,7 @@ class StepTest < ActiveSupport::TestCase
157	should 'accept comments if step is active' do	157	should 'accept comments if step is active' do
158	@step.start_date = Date.today	158	@step.start_date = Date.today
159	@step.save!	159	@step.save!
160	- assert !@step.accept_comments	160	+ refute @step.accept_comments
161	@step.toggle_activation	161	@step.toggle_activation
162	@step.reload	162	@step.reload
163	assert @step.accept_comments	163	assert @step.accept_comments
	@@ -167,10 +167,10 @@ class StepTest < ActiveSupport::TestCase		@@ -167,10 +167,10 @@ class StepTest < ActiveSupport::TestCase
167	@step.start_date = Date.today + 2.days	167	@step.start_date = Date.today + 2.days
168	@step.end_date = Date.today + 3.days	168	@step.end_date = Date.today + 3.days
169	@step.save!	169	@step.save!
170	- assert !@step.published	170	+ refute @step.published
171	@step.toggle_activation	171	@step.toggle_activation
172	@step.reload	172	@step.reload
173	- assert !@step.published	173	+ refute @step.published
174	end	174	end
175		175
176	should 'do not accept comments if step is not active anymore' do	176	should 'do not accept comments if step is not active anymore' do
	@@ -185,7 +185,7 @@ class StepTest < ActiveSupport::TestCase		@@ -185,7 +185,7 @@ class StepTest < ActiveSupport::TestCase
185	@step.save!	185	@step.save!
186	@step.toggle_activation	186	@step.toggle_activation
187	@step.reload	187	@step.reload
188	- assert !@step.accept_comments	188	+ refute @step.accept_comments
189	end	189	end
190		190
191	should 'set position to zero if step is hidden' do	191	should 'set position to zero if step is hidden' do
	@@ -228,10 +228,10 @@ class StepTest < ActiveSupport::TestCase		@@ -228,10 +228,10 @@ class StepTest < ActiveSupport::TestCase
228	@step.start_date = Date.today	228	@step.start_date = Date.today
229	@step.hidden = true	229	@step.hidden = true
230	@step.save!	230	@step.save!
231	- assert !@step.published	231	+ refute @step.published
232	@step.toggle_activation	232	@step.toggle_activation
233	@step.reload	233	@step.reload
234	- assert !@step.published	234	+ refute @step.published
235	end	235	end
236		236
237	should 'return enabled tools for a step' do	237	should 'return enabled tools for a step' do
	@@ -268,9 +268,9 @@ class StepTest < ActiveSupport::TestCase		@@ -268,9 +268,9 @@ class StepTest < ActiveSupport::TestCase
268	should 'enable comments on children when step is activated' do	268	should 'enable comments on children when step is activated' do
269	@step.start_date = Date.today	269	@step.start_date = Date.today
270	@step.save!	270	@step.save!
271	- assert !@step.accept_comments	271	+ refute @step.accept_comments
272	article = fast_create(Article, :parent_id => @step.id, :profile_id => @step.profile.id, :accept_comments => false)	272	article = fast_create(Article, :parent_id => @step.id, :profile_id => @step.profile.id, :accept_comments => false)
273	- assert !article.accept_comments	273	+ refute article.accept_comments
274	@step.toggle_activation	274	@step.toggle_activation
275	assert article.reload.accept_comments	275	assert article.reload.accept_comments
276	end	276	end
	@@ -279,7 +279,7 @@ class StepTest < ActiveSupport::TestCase		@@ -279,7 +279,7 @@ class StepTest < ActiveSupport::TestCase
279	@step.start_date = Date.today	279	@step.start_date = Date.today
280	@step.start_date = Date.today	280	@step.start_date = Date.today
281	@step.save!	281	@step.save!
282	- assert !@step.accept_comments	282	+ refute @step.accept_comments
283	@step.toggle_activation	283	@step.toggle_activation
284	article = Article.create!(:parent => @step, :profile => @step.profile, :accept_comments => false, :name => "article")	284	article = Article.create!(:parent => @step, :profile => @step.profile, :accept_comments => false, :name => "article")
285	assert article.reload.accept_comments	285	assert article.reload.accept_comments