Properly expire cache for **all** MRs of a pipeline

Turn ExpirePipelineCacheService into Worker so it can fetch all the
merge requests for which the pipeline runs or did run against.

1 files changed, 27 insertions, 0 deletions

diff --git a/spec/workers/expire_pipeline_cache_worker_spec.rb b/spec/workers/expire_pipeline_cache_worker_spec.rb
new file mode 100644
index 00000000000..0138bfa4359
--- /dev/null
+++ b/spec/workers/expire_pipeline_cache_worker_spec.rb
@@ -0,0 +1,27 @@
+require 'spec_helper'
+
+describe ExpirePipelineCacheWorker do
+  let(:user) { create(:user) }
+  let(:project) { create(:empty_project) }
+  let(:pipeline) { create(:ci_pipeline, project: project) }
+  subject { described_class.new }
+
+  describe '#perform' do
+    it 'invalidate Etag caching for project pipelines path' do
+      pipelines_path = "/#{project.full_path}/pipelines.json"
+      new_mr_pipelines_path = "/#{project.full_path}/merge_requests/new.json"
+
+      expect_any_instance_of(Gitlab::EtagCaching::Store).to receive(:touch).with(pipelines_path)
+      expect_any_instance_of(Gitlab::EtagCaching::Store).to receive(:touch).with(new_mr_pipelines_path)
+
+      subject.perform(pipeline.id)
+    end
+
+    it 'updates the cached status for a project' do
+      expect(Gitlab::Cache::Ci::ProjectPipelineStatus).to receive(:update_for_pipeline).
+                                                            with(pipeline)
+
+      subject.perform(pipeline.id)
+    end
+  end
+end