Use Etag caching for pipelines json

Enable caching in the Etag::Middleware and when a pipeline changes
status, expire the cache for the project pipelines path.

1 files changed, 8 insertions, 0 deletions

diff --git a/spec/models/ci/pipeline_spec.rb b/spec/models/ci/pipeline_spec.rb
index e4a24fd63c2..02c47b3efc4 100644
--- a/spec/models/ci/pipeline_spec.rb
+++ b/spec/models/ci/pipeline_spec.rb
@@ -335,6 +335,14 @@ describe Ci::Pipeline, models: true do
       end
     end
 
+    describe 'pipeline ETag caching' do
+      it 'executes ExpirePipelinesCacheService' do
+        expect_any_instance_of(Ci::ExpirePipelineCacheService).to receive(:execute).with(pipeline)
+
+        pipeline.cancel
+      end
+    end
+
     def create_build(name, queued_at = current, started_from = 0)
       create(:ci_build,
              name: name,