Merge branch 'refute-insteadof-assert-not' into noosfero

Braulio Bhavamitra
2 parents e36907e3 c25b36bb
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)
@@ -141,14 +141,14 @@ 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
  
   should 'fail cookie login' do
     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
@@ -186,7 +186,7 @@ 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
  
@@ -195,8 +195,8 @@ 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
  
@@ -281,7 +281,7 @@ 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
@@ -535,7 +535,7 @@ 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
@@ -915,7 +915,7 @@ 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)
@@ -923,7 +923,7 @@ 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)
@@ -948,7 +948,7 @@ 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
@@ -192,11 +192,11 @@ 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
@@ -230,7 +230,7 @@ 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
...	...	@@ -37,8 +37,8 @@ class ProfileDesignControllerTest < ActionController::TestCase
37	37	post :save, :id => @block.id, :profile => @profile.identifier, :block => {:title => 'breadcrumbs', :show_cms_action => false, :show_profile => false}
38	38	@block.reload
39	39	assert_equal 'breadcrumbs', @block.title
40		- assert !@block.show_profile
41		- assert !@block.show_cms_action
	40	+ refute @block.show_profile
	41	+ refute @block.show_cms_action
42	42	end
43	43
44	44	should 'be able save breadcrumbs block with show_section_name option' do
...	...
...	...	@@ -7,11 +7,11 @@ class BreadcrumbsPluginTest < ActiveSupport::TestCase
7	7	end
8	8
9	9	should 'has a name' do
10		- assert !BreadcrumbsPlugin.plugin_name.blank?
	10	+ refute BreadcrumbsPlugin.plugin_name.blank?
11	11	end
12	12
13	13	should 'has a description' do
14		- assert !BreadcrumbsPlugin.plugin_description.blank?
	14	+ refute BreadcrumbsPlugin.plugin_description.blank?
15	15	end
16	16
17	17	should 'add a block' do
...	...
...	...	@@ -69,7 +69,7 @@ class ContentBreadcrumbsBlockTest < ActiveSupport::TestCase
69	69	end
70	70
71	71	should 'not be cacheable' do
72		- assert !@block.cacheable?
	72	+ refute @block.cacheable?
73	73	end
74	74
75	75	end
...	...
...	...	@@ -76,6 +76,6 @@ class BscPluginAdminControllerTest < ActionController::TestCase
76	76
77	77	assert e1.validated
78	78	assert e2.validated
79		- assert !e3.validated
	79	+ refute e3.validated
80	80	end
81	81	end
...	...
...	...	@@ -41,7 +41,7 @@ class BscPlugin::BscTest < ActiveSupport::TestCase
41	41	bsc.enterprise_requests.stubs(:pending).returns([task])
42	42
43	43	assert bsc.already_requested?(e1)
44		- assert !bsc.already_requested?(e2)
	44	+ refute bsc.already_requested?(e2)
45	45	end
46	46
47	47	should 'return associated enterprises products' do
...	...	@@ -68,7 +68,7 @@ class BscPlugin::BscTest < ActiveSupport::TestCase
68	68	end
69	69
70	70	should 'not be able to create product' do
71		- assert !bsc.create_product?
	71	+ refute bsc.create_product?
72	72	end
73	73
74	74	should 'have many contracts' do
...	...
...	...	@@ -14,7 +14,7 @@ class BscPlugin::ContractTest < ActiveSupport::TestCase
14	14
15	15	contract.bsc = BscPlugin::Bsc.new
16	16	contract.valid?
17		- assert !contract.errors.invalid?(:bsc)
	17	+ refute contract.errors.invalid?(:bsc)
18	18	end
19	19
20	20	should 'associate contract with products through sales' do
...	...
...	...	@@ -18,8 +18,8 @@ class BscPlugin::SaleTest < ActiveSupport::TestCase
18	18	sale.product = product
19	19	sale.contract = contract
20	20
21		- assert !sale.errors.invalid?(product)
22		- assert !sale.errors.invalid?(contract)
	21	+ refute sale.errors.invalid?(product)
	22	+ refute sale.errors.invalid?(contract)
23	23	end
24	24
25	25	should 'validate uniqueness of product and contract composed' do
...	...	@@ -43,7 +43,7 @@ class BscPlugin::SaleTest < ActiveSupport::TestCase
43	43
44	44	sale.quantity = 3
45	45	sale.valid?
46		- assert !sale.errors.invalid?(:quantity)
	46	+ refute sale.errors.invalid?(:quantity)
47	47	end
48	48
49	49	should 'set default price as product price if no price indicated' do
...	...
...	...	@@ -19,7 +19,7 @@ class ArticleTest < ActiveSupport::TestCase
19	19	should 'do not allow a exclusion of a group comment macro if this group has comments' do
20	20	article.body = "<div class=\"macro\" data-macro-group_id=2></div>"
21	21	comment1 = fast_create(Comment, :group_id => 1, :source_id => article.id)
22		- assert !article.save
	22	+ refute article.save
23	23	assert_equal ['Not empty group comment cannot be removed'], article.errors[:base]
24	24	end
25	25
...	...
...	...	@@ -18,7 +18,7 @@ class CommentGroupPluginTest < ActiveSupport::TestCase
18	18	end
19	19
20	20	should 'have a js file' do
21		- assert !plugin.js_files.blank?
	21	+ refute plugin.js_files.blank?
22	22	end
23	23
24	24	should 'have stylesheet' do
...	...
...	...	@@ -52,7 +52,7 @@ class CommunityTrackPluginPublicControllerTest < ActionController::TestCase
52	52	should 'do not show more link in all tracks if there is no more tracks to show' do
53	53	CommunityTrackPlugin::Track.destroy_all
54	54	get :all_tracks, :id => @block.id
55		- assert !assigns['show_more']
	55	+ refute assigns['show_more']
56	56	assert_no_match /track_list_more_#{@block.id}/, @response.body
57	57	end
58	58
...	...