Merge branch 'sh-fix-issues-api-gitaly-nplusone' into 'master'

Fix Gitaly N+1 calls with listing issues/MRs via API

Closes #66202

See merge request gitlab-org/gitlab-ce!31938

3 files changed, 13 insertions, 0 deletions

diff --git a/spec/requests/api/issues/get_group_issues_spec.rb b/spec/requests/api/issues/get_group_issues_spec.rb
index 5916bb11516..c487471e4a1 100644
--- a/spec/requests/api/issues/get_group_issues_spec.rb
+++ b/spec/requests/api/issues/get_group_issues_spec.rb
@@ -342,6 +342,14 @@ describe API::Issues do
         group_project.add_reporter(user)
       end
 
+      it 'exposes known attributes' do
+        get api(base_url, admin)
+
+        expect(response).to have_gitlab_http_status(200)
+        expect(json_response.last.keys).to include(*%w(id iid project_id title description))
+        expect(json_response.last).not_to have_key('subscribed')
+      end
+
       it 'returns all group issues (including opened and closed)' do
         get api(base_url, admin)
 
diff --git a/spec/requests/api/issues/get_project_issues_spec.rb b/spec/requests/api/issues/get_project_issues_spec.rb
index f7ca6fd1e0a..521d6b88734 100644
--- a/spec/requests/api/issues/get_project_issues_spec.rb
+++ b/spec/requests/api/issues/get_project_issues_spec.rb
@@ -575,6 +575,7 @@ describe API::Issues do
       expect(json_response['assignee']).to be_a Hash
       expect(json_response['author']).to be_a Hash
       expect(json_response['confidential']).to be_falsy
+      expect(json_response['subscribed']).to be_truthy
     end
 
     it 'exposes the closed_at attribute' do
diff --git a/spec/requests/api/issues/issues_spec.rb b/spec/requests/api/issues/issues_spec.rb
index d195f54be11..27cf66629fe 100644
--- a/spec/requests/api/issues/issues_spec.rb
+++ b/spec/requests/api/issues/issues_spec.rb
@@ -216,6 +216,10 @@ describe API::Issues do
         expect_paginated_array_response([issue.id, closed_issue.id])
         expect(json_response.first['title']).to eq(issue.title)
         expect(json_response.last).to have_key('web_url')
+        # Calculating the value of subscribed field triggers Markdown
+        # processing. We can't do that for multiple issues / merge
+        # requests in a single API request.
+        expect(json_response.last).not_to have_key('subscribed')
       end
 
       it 'returns an array of closed issues' do