Add explicit status test, feedback:

https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/7333#note_20058993

https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/7333#note_20059060

https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/7333#note_20059357

spec/models/ci/pipeline_spec.rb

@@ -426,6 +426,7 @@ describe Ci::Pipeline, models: true do
 
       it 'returns the latest status for the same ref and different sha' do
         expect(latest_status).to eq(described_class.latest.status)
+        expect(latest_status).to eq('failed')
       end
     end
 
@@ -434,6 +435,7 @@ describe Ci::Pipeline, models: true do
 
       it 'returns the latest status for ref and different sha' do
         expect(latest_status).to eq(described_class.latest_status('ref'))
+        expect(latest_status).to eq('failed')
       end
     end
   end

spec/models/commit_spec.rb

@@ -225,6 +225,7 @@ eos
 
       it 'gives compound status from latest pipelines' do
         expect(commit.status).to eq(Ci::Pipeline.latest_status)
+        expect(commit.status).to eq('pending')
       end
     end
 
@@ -252,6 +253,7 @@ eos
 
       it 'gives compound status from latest pipelines if ref is nil' do
         expect(commit.status(nil)).to eq(Ci::Pipeline.latest_status)
+        expect(commit.status(nil)).to eq('failed')
       end
     end
   end