diff --git a/spec/observers/issue_observer_spec.rb b/spec/observers/issue_observer_spec.rb
index 4155ff3..9a0a2c4 100644
--- a/spec/observers/issue_observer_spec.rb
+++ b/spec/observers/issue_observer_spec.rb
@@ -9,7 +9,7 @@ describe IssueObserver do
 
   before { subject.stub(:current_user).and_return(some_user) }
   before { subject.stub(:current_commit).and_return(nil) }
-  before { subject.stub(notification: mock('NotificationService').as_null_object) }
+  before { subject.stub(notification: double('NotificationService').as_null_object) }
   before { mock_issue.project.stub_chain(:repository, :commit).and_return(nil) }
 
   subject { IssueObserver.instance }
diff --git a/spec/observers/merge_request_observer_spec.rb b/spec/observers/merge_request_observer_spec.rb
index 3e5cdfa..a450b4d 100644
--- a/spec/observers/merge_request_observer_spec.rb
+++ b/spec/observers/merge_request_observer_spec.rb
@@ -11,7 +11,7 @@ describe MergeRequestObserver do
   let(:closed_unassigned_mr) { create(:closed_merge_request, author: author, target_project: create(:project)) }
 
   before { subject.stub(:current_user).and_return(some_user) }
-  before { subject.stub(notification: mock('NotificationService').as_null_object) }
+  before { subject.stub(notification: double('NotificationService').as_null_object) }
   before { mr_mock.stub(:author_id) }
   before { mr_mock.stub(:target_project) }
   before { mr_mock.stub(:source_project) }
diff --git a/spec/observers/user_observer_spec.rb b/spec/observers/user_observer_spec.rb
index b74fceb..9aeade5 100644
--- a/spec/observers/user_observer_spec.rb
+++ b/spec/observers/user_observer_spec.rb
@@ -4,7 +4,7 @@ describe UserObserver do
   before(:each) { enable_observers }
   after(:each) {disable_observers}
   subject { UserObserver.instance }
-  before { subject.stub(notification: mock('NotificationService').as_null_object) }
+  before { subject.stub(notification: double('NotificationService').as_null_object) }
 
   it 'calls #after_create when new users are created' do
     new_user = build(:user)
diff --git a/spec/observers/users_group_observer_spec.rb b/spec/observers/users_group_observer_spec.rb
index 6548480..2ab99c3 100644
--- a/spec/observers/users_group_observer_spec.rb
+++ b/spec/observers/users_group_observer_spec.rb
@@ -5,7 +5,7 @@ describe UsersGroupObserver do
   after(:each) { disable_observers }
 
   subject { UsersGroupObserver.instance }
-  before { subject.stub(notification: mock('NotificationService').as_null_object) }
+  before { subject.stub(notification: double('NotificationService').as_null_object) }
 
   describe "#after_create" do
     it "should send email to user" do
diff --git a/spec/observers/users_project_observer_spec.rb b/spec/observers/users_project_observer_spec.rb
index ab259e9..dea90b2 100644
--- a/spec/observers/users_project_observer_spec.rb
+++ b/spec/observers/users_project_observer_spec.rb
@@ -9,26 +9,6 @@ describe UsersProjectObserver do
   subject { UsersProjectObserver.instance }
   before { subject.stub(notification: double('NotificationService').as_null_object) }
 
-  describe "#after_commit" do
-    it "should called when UsersProject created" do
-      subject.should_receive(:after_commit)
-      create(:users_project)
-    end
-
-    it "should send email to user" do
-      subject.should_receive(:notification)
-      Event.stub(create: true)
-
-      create(:users_project)
-    end
-
-    it "should create new event" do
-      Event.should_receive(:create)
-
-      create(:users_project)
-    end
-  end
-
   describe "#after_update" do
     before do
       @users_project = create :users_project
@@ -90,5 +70,18 @@ describe UsersProjectObserver do
         it { File.exists?(@path).should be_false }
       end
     end
+
+    it "should send email to user" do
+      subject.should_receive(:notification)
+      Event.stub(create: true)
+
+      create(:users_project)
+    end
+
+    it "should create new event" do
+      Event.should_receive(:create)
+
+      create(:users_project)
+    end
   end
 end
--
libgit2 0.21.2