add spec for forked project

spec/ee/spec/controllers/projects/merge_requests_controller_spec.rb

 require 'spec_helper'
 
-describe Projects::MergeRequestsController do
-  let(:project)       { create(:project, :repository) }
-  let(:merge_request) { create(:merge_request_with_diffs, target_project: project, source_project: project) }
-  let(:user)          { project.owner }
-  let(:viewer)        { user }
-
-  before do
-    sign_in(viewer)
-  end
-
-  context 'approvals' do
+shared_examples 'approvals' do
   def json_response
     JSON.parse(response.body)
   end
@@ -85,8 +75,20 @@ describe Projects::MergeRequestsController do
       expect(json_response['suggested_approvers'].size).to eq 2
     end
   end
+end
+
+describe Projects::MergeRequestsController do
+  let(:project)       { create(:project, :repository) }
+  let(:merge_request) { create(:merge_request_with_diffs, target_project: project, source_project: project) }
+  let(:user)          { project.owner }
+  let(:viewer)        { user }
+
+  before do
+    sign_in(viewer)
   end
 
+  it_behaves_like 'approvals'
+
   describe 'PUT update' do
     def update_merge_request(params = {})
       post :update,
@@ -353,6 +355,8 @@ describe Projects::MergeRequestsController do
         fork_project.add_reporter(user)
       end
 
+      it_behaves_like 'approvals'
+
       context 'user cannot push to source branch' do
         it 'returns 404' do
           expect_rebase_worker_for(viewer).never