Fix some tests and report the error message

app/models/repository.rb

@@ -1021,10 +1021,10 @@ class Repository
 
   def fetch_ref(source_path, source_ref, target_ref)
     args = %W(fetch --no-tags -f #{source_path} #{source_ref}:#{target_ref})
-    run_git(args)
+    message, status = run_git(args)
 
     # Make sure ref was created, and raise Rugged::ReferenceError when not
-    raise Rugged::ReferenceError unless ref_exists?(target_ref)
+    raise Rugged::ReferenceError, message unless ref_exists?(target_ref)
   end
 
   def create_ref(ref, ref_path)

spec/controllers/projects/issues_controller_spec.rb

 require('spec_helper')
 
 describe Projects::IssuesController do
-  let(:project) { create(:project_empty_repo) }
+  let(:project) { create(:project) }
   let(:user)    { create(:user) }
   let(:issue)   { create(:issue, project: project) }
 

spec/factories/deployments.rb

@@ -10,6 +10,10 @@ FactoryGirl.define do
 
     after(:build) do |deployment, evaluator|
       deployment.project ||= deployment.environment.project
+
+      unless deployment.project.repository_exists?
+        allow(deployment.project.repository).to receive(:fetch_ref)
+      end
     end
   end
 end

spec/factories/merge_requests.rb

@@ -70,10 +70,11 @@ FactoryGirl.define do
 
     after(:build) do |merge_request|
       target_project = merge_request.target_project
+      source_project = merge_request.source_project
 
       # Fake `fetch_ref` if we don't have repository
       # We have too many existing tests replying on this behaviour
-      unless target_project.repository_exists?
+      unless [target_project, source_project].all?(&:repository_exists?)
         allow(target_project.repository).to receive(:fetch_ref)
       end
     end

spec/requests/api/merge_requests_spec.rb

@@ -580,15 +580,27 @@ describe API::MergeRequests do
       let!(:fork_project) { create(:project, forked_from_project: project,  namespace: user2.namespace, creator_id: user2.id) }
       let!(:unrelated_project) { create(:project,  namespace: create(:user).namespace, creator_id: user2.id) }
 
-      before :each do |each|
-        fork_project.team << [user2, :reporter]
+      before do
+        fork_project.add_reporter(user2)
+
+        Project.all.each(&method(:stub_project_repository_fetch_ref))
+      end
+
+      def stub_project_repository_fetch_ref(project)
+        allow(Project).to receive(:find_by).with(id: project.id.to_s)
+          .and_return(project)
+
+        allow(Project).to receive(:find).with(project.id)
+          .and_return(project)
+
+        allow(project.repository).to receive(:fetch_ref)
       end
 
       it "returns merge_request" do
         post api("/projects/#{fork_project.id}/merge_requests", user2),
           title: 'Test merge_request', source_branch: "feature_conflict", target_branch: "master",
           author: user2, target_project_id: project.id, description: 'Test description for Test merge_request'
-        expect(response).to have_http_status(201)
+        expect(response).to have_gitlab_http_status(201)
         expect(json_response['title']).to eq('Test merge_request')
         expect(json_response['description']).to eq('Test description for Test merge_request')
       end
@@ -599,7 +611,7 @@ describe API::MergeRequests do
         expect(fork_project.forked_from_project).to eq(project)
         post api("/projects/#{fork_project.id}/merge_requests", user2),
         title: 'Test merge_request', source_branch: "master", target_branch: "master", author: user2, target_project_id: project.id
-        expect(response).to have_http_status(201)
+        expect(response).to have_gitlab_http_status(201)
         expect(json_response['title']).to eq('Test merge_request')
       end
 

spec/services/ci/create_pipeline_service_spec.rb

@@ -66,7 +66,7 @@ describe Ci::CreatePipelineService do
 
         context 'when there is no pipeline for source branch' do
           it "does not update merge request head pipeline" do
-            merge_request = create(:merge_request, source_branch: 'other_branch', target_branch: "branch_1", source_project: project)
+            merge_request = create(:merge_request, source_branch: 'feature', target_branch: "branch_1", source_project: project)
 
             head_pipeline = pipeline
 

spec/services/issues/resolve_discussions_spec.rb

@@ -20,7 +20,7 @@ describe Issues::ResolveDiscussions do
   describe "for resolving discussions" do
     let(:discussion) { create(:diff_note_on_merge_request, project: project, note: "Almost done").to_discussion }
     let(:merge_request) { discussion.noteable }
-    let(:other_merge_request) { create(:merge_request, source_project: project, source_branch: "other") }
+    let(:other_merge_request) { create(:merge_request, source_project: project, source_branch: "fix") }
 
     describe "#merge_request_for_resolving_discussion" do
       let(:service) { DummyService.new(project, user, merge_request_to_resolve_discussions_of: merge_request.iid) }

spec/support/issuables_list_metadata_shared_examples.rb

@@ -2,12 +2,12 @@ shared_examples 'issuables list meta-data' do |issuable_type, action = nil|
   before do
     @issuable_ids = []
 
-    2.times do |n|
+    %w[fix improve/awesome].each do |source_branch|
       issuable =
         if issuable_type == :issue
           create(issuable_type, project: project)
         else
-          create(issuable_type, source_project: project, source_branch: "#{n}-feature")
+          create(issuable_type, source_project: project, source_branch: source_branch)
         end
 
       @issuable_ids << issuable.id