1 files changed, 102 insertions, 0 deletions
diff --git a/spec/features/merge_request/user_sees_pipelines_spec.rb b/spec/features/merge_request/user_sees_pipelines_spec.rb
new file mode 100644
index 00000000000..a42c016392b
--- /dev/null
+++ b/spec/features/merge_request/user_sees_pipelines_spec.rb
@@ -0,0 +1,102 @@
+require 'rails_helper'
+
+describe 'Merge request > User sees pipelines', :js do
+  describe 'pipeline tab' do
+    let(:merge_request) { create(:merge_request) }
+    let(:project) { merge_request.target_project }
+    let(:user) { project.creator }
+
+    before do
+      project.add_master(user)
+      sign_in(user)
+    end
+
+    context 'with pipelines' do
+      let!(:pipeline) do
+        create(:ci_empty_pipeline,
+               project: merge_request.source_project,
+               ref: merge_request.source_branch,
+               sha: merge_request.diff_head_sha)
+      end
+
+      before do
+        merge_request.update_attribute(:head_pipeline_id, pipeline.id)
+      end
+
+      it 'user visits merge request pipelines tab' do
+        visit project_merge_request_path(project, merge_request)
+
+        expect(page.find('.ci-widget')).to have_content('pending')
+
+        page.within('.merge-request-tabs') do
+          click_link('Pipelines')
+        end
+        wait_for_requests
+
+        expect(page).to have_selector('.stage-cell')
+      end
+
+      it 'pipeline sha does not equal last commit sha' do
+        pipeline.update_attribute(:sha, '19e2e9b4ef76b422ce1154af39a91323ccc57434')
+        visit project_merge_request_path(project, merge_request)
+        wait_for_requests
+
+        expect(page.find('.ci-widget')).to have_content(
+          'Could not connect to the CI server. Please check your settings and try again')
+      end
+    end
+
+    context 'without pipelines' do
+      before do
+        visit project_merge_request_path(project, merge_request)
+      end
+
+      it 'user visits merge request page' do
+        page.within('.merge-request-tabs') do
+          expect(page).to have_no_link('Pipelines')
+        end
+      end
+    end
+  end
+
+  describe 'race condition' do
+    let(:project) { create(:project, :repository) }
+    let(:user) { create(:user) }
+    let(:build_push_data) { { ref: 'feature', checkout_sha: TestEnv::BRANCH_SHA['feature'] } }
+
+    let(:merge_request_params) do
+      { "source_branch" => "feature", "source_project_id" => project.id,
+        "target_branch" => "master", "target_project_id" => project.id, "title" => "A" }
+    end
+
+    before do
+      project.add_master(user)
+      sign_in user
+    end
+
+    context 'when pipeline and merge request were created simultaneously' do
+      before do
+        stub_ci_pipeline_to_return_yaml_file
+
+        threads = []
+
+        threads << Thread.new do
+          @merge_request = MergeRequests::CreateService.new(project, user, merge_request_params).execute
+        end
+
+        threads << Thread.new do
+          @pipeline = Ci::CreatePipelineService.new(project, user, build_push_data).execute(:push)
+        end
+
+        threads.each { |thr| thr.join }
+      end
+
+      it 'user sees pipeline in merge request widget' do
+        visit project_merge_request_path(project, @merge_request)
+
+        expect(page.find(".ci-widget")).to have_content(TestEnv::BRANCH_SHA['feature'])
+        expect(page.find(".ci-widget")).to have_content("##{@pipeline.id}")
+      end
+    end
+  end
+end