Fixed UP arrow key not editing last comment in discussion

Closes #31348

1 files changed, 16 insertions, 0 deletions

diff --git a/spec/javascripts/fixtures/merge_requests.rb b/spec/javascripts/fixtures/merge_requests.rb
index 47d904b865b..a746a776548 100644
--- a/spec/javascripts/fixtures/merge_requests.rb
+++ b/spec/javascripts/fixtures/merge_requests.rb
@@ -16,6 +16,16 @@ describe Projects::MergeRequestsController, '(JavaScript fixtures)', type: :cont
       sha: merge_request.diff_head_sha
     )
   end
+  let(:path) { "files/ruby/popen.rb" }
+  let(:position) do
+    Gitlab::Diff::Position.new(
+      old_path: path,
+      new_path: path,
+      old_line: nil,
+      new_line: 14,
+      diff_refs: merge_request.diff_refs
+    )
+  end
 
   render_views
 
@@ -39,6 +49,12 @@ describe Projects::MergeRequestsController, '(JavaScript fixtures)', type: :cont
     render_merge_request(example.description, merged_merge_request)
   end
 
+  it 'merge_requests/diff_comment.html.raw' do |example|
+    create(:diff_note_on_merge_request, project: project, author: admin, position: position, noteable: merge_request)
+    create(:note_on_merge_request, author: admin, project: project, noteable: merge_request)
+    render_merge_request(example.description, merge_request)
+  end
+
   private
 
   def render_merge_request(fixture_file_name, merge_request)