1 files changed, 65 insertions, 0 deletions
diff --git a/spec/controllers/projects/pipelines_controller_spec.rb b/spec/controllers/projects/pipelines_controller_spec.rb
index 089d06e11eb..212d8b15252 100644
--- a/spec/controllers/projects/pipelines_controller_spec.rb
+++ b/spec/controllers/projects/pipelines_controller_spec.rb
@@ -397,4 +397,69 @@ describe Projects::PipelinesController do
       end
     end
   end
+
+  describe 'GET latest' do
+    let(:branch_main) { project.repository.branches[0] }
+    let(:branch_secondary) { project.repository.branches[1] }
+
+    let!(:pipeline_master) do
+      create(:ci_pipeline,
+             ref: branch_main.name,
+             sha: branch_main.target,
+             project: project)
+    end
+
+    let!(:pipeline_secondary) do
+      create(:ci_pipeline,
+             ref: branch_secondary.name,
+             sha: branch_secondary.target,
+             project: project)
+    end
+
+    before do
+      project.change_head(branch_main.name)
+      project.reload_default_branch
+    end
+
+    context 'no ref provided' do
+      it 'shows latest pipeline for the default project branch' do
+        get :show, params: { namespace_id: project.namespace, project_id: project, latest: true, ref: nil }
+
+        expect(response).to have_gitlab_http_status(200)
+        expect(assigns(:pipeline)).to have_attributes(id: pipeline_master.id)
+      end
+    end
+
+    context 'ref provided' do
+      before do
+        create(:ci_pipeline, ref: 'master', project: project)
+      end
+
+      it 'shows the latest pipeline for the provided ref' do
+        get :show, params: { namespace_id: project.namespace, project_id: project, latest: true, ref: branch_secondary.name }
+
+        expect(response).to have_gitlab_http_status(200)
+        expect(assigns(:pipeline)).to have_attributes(id: pipeline_secondary.id)
+      end
+
+      context 'newer pipeline exists for older sha' do
+        before do
+          create(:ci_pipeline, ref: branch_secondary.name, sha: project.commit(branch_secondary.name).parent, project: project)
+        end
+
+        it 'shows the provided ref with the last sha/pipeline combo' do
+          get :show, params: { namespace_id: project.namespace, project_id: project, latest: true, ref: branch_secondary.name }
+
+          expect(response).to have_gitlab_http_status(200)
+          expect(assigns(:pipeline)).to have_attributes(id: pipeline_secondary.id)
+        end
+      end
+    end
+
+    it 'renders a 404 if no pipeline is found for the ref' do
+      get :show, params: { namespace_id: project.namespace, project_id: project, ref: 'no-branch' }
+
+      expect(response).to have_gitlab_http_status(404)
+    end
+  end
 end