Expose head pipeline in the related merge requests

Expose head pipeline for the MR in the api when requesting
related merge requests for an issue and show a detailed
status for the pipeline, which would include:
details_path, favicon, group, icon, label, text, tooltip.

https://gitlab.com/gitlab-org/gitlab-ce/issues/57662#note_152023412

2 files changed, 15 insertions, 0 deletions

diff --git a/spec/requests/api/merge_requests_spec.rb b/spec/requests/api/merge_requests_spec.rb
index 4259fda7f04..1d139200535 100644
--- a/spec/requests/api/merge_requests_spec.rb
+++ b/spec/requests/api/merge_requests_spec.rb
@@ -729,6 +729,14 @@ describe API::MergeRequests do
   end
 
   describe "GET /projects/:id/merge_requests/:merge_request_iid" do
+    it 'matches json schema' do
+      merge_request = create(:merge_request, :with_test_reports, milestone: milestone1, author: user, assignee: user, source_project: project, target_project: project, title: "Test", created_at: base_time)
+      get api("/projects/#{project.id}/merge_requests/#{merge_request.iid}", user)
+
+      expect(response).to have_gitlab_http_status(200)
+      expect(response).to match_response_schema('public_api/v4/merge_request')
+    end
+
     it 'exposes known attributes' do
       create(:award_emoji, :downvote, awardable: merge_request)
       create(:award_emoji, :upvote, awardable: merge_request)
diff --git a/spec/requests/api/pipelines_spec.rb b/spec/requests/api/pipelines_spec.rb
index 52599db9a9e..c26d31c5e0d 100644
--- a/spec/requests/api/pipelines_spec.rb
+++ b/spec/requests/api/pipelines_spec.rb
@@ -399,6 +399,13 @@ describe API::Pipelines do
 
   describe 'GET /projects/:id/pipelines/:pipeline_id' do
     context 'authorized user' do
+      it 'exposes known attributes' do
+        get api("/projects/#{project.id}/pipelines/#{pipeline.id}", user)
+
+        expect(response).to have_gitlab_http_status(200)
+        expect(response).to match_response_schema('public_api/v4/pipeline/detail')
+      end
+
       it 'returns project pipelines' do
         get api("/projects/#{project.id}/pipelines/#{pipeline.id}", user)