Merge branch 'fix-mr-sidebar-counter-after-merge' into 'master'

Clear merge requests counter cache after merge

Closes gitlab-ee#3573 and #38344

See merge request gitlab-org/gitlab-ce!14563

1 files changed, 11 insertions, 0 deletions

diff --git a/spec/services/merge_requests/post_merge_service_spec.rb b/spec/services/merge_requests/post_merge_service_spec.rb
index a37cdab8928..d2bd05d921f 100644
--- a/spec/services/merge_requests/post_merge_service_spec.rb
+++ b/spec/services/merge_requests/post_merge_service_spec.rb
@@ -11,5 +11,16 @@ describe MergeRequests::PostMergeService do
 
   describe '#execute' do
     it_behaves_like 'cache counters invalidator'
+
+    it 'refreshes the number of open merge requests for a valid MR', :use_clean_rails_memory_store_caching do
+      # Cache the counter before the MR changed state.
+      project.open_merge_requests_count
+      merge_request.update!(state: 'merged')
+
+      service = described_class.new(project, user, {})
+
+      expect { service.execute(merge_request) }
+        .to change { project.open_merge_requests_count }.from(1).to(0)
+    end
   end
 end