Add job_entity_spec

app/serializers/job_entity.rb

@@ -24,8 +24,12 @@ class JobEntity < Grape::Entity
     path_to(:play_namespace_project_job, build)
   end
 
+  expose :unschedule_path, if: -> (*) { scheduled? } do |build|
+    path_to(:unschedule_namespace_project_job, build)
+  end
+
   expose :playable?, as: :playable
-  expose :scheduled_at
+  expose :scheduled_at, if: -> (*) { scheduled? }
   expose :created_at
   expose :updated_at
   expose :detailed_status, as: :status, with: DetailedStatusEntity
@@ -48,6 +52,10 @@ class JobEntity < Grape::Entity
     build.playable? && can?(request.current_user, :update_build, build)
   end
 
+  def scheduled?
+    build.scheduled?
+  end
+
   def detailed_status
     build.detailed_status(request.current_user)
   end

spec/serializers/job_entity_spec.rb

@@ -109,6 +109,18 @@ describe JobEntity do
     end
   end
 
+  context 'when job is scheduled' do
+    let(:job) { create(:ci_build, :scheduled) }
+
+    it 'contains path to unschedule action' do
+      expect(subject).to include(:unschedule_path)
+    end
+
+    it 'contains scheduled_at' do
+      expect(subject[:scheduled_at]).to eq(job.scheduled_at)
+    end
+  end
+
   context 'when job is generic commit status' do
     let(:job) { create(:generic_commit_status, target_url: 'http://google.com') }