1 files changed, 25 insertions, 0 deletions
diff --git a/spec/services/resource_events/synthetic_milestone_notes_builder_service_spec.rb b/spec/services/resource_events/synthetic_milestone_notes_builder_service_spec.rb
new file mode 100644
index 00000000000..e98b8bd00dc
--- /dev/null
+++ b/spec/services/resource_events/synthetic_milestone_notes_builder_service_spec.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe ResourceEvents::SyntheticMilestoneNotesBuilderService do
+  describe '#execute' do
+    let_it_be(:user) { create(:user) }
+    let_it_be(:issue) { create(:issue, author: user) }
+
+    before do
+      create_list(:resource_milestone_event, 3, issue: issue)
+
+      stub_feature_flags(track_resource_milestone_change_events: false)
+    end
+
+    context 'when resource milestone events are disabled' do
+      # https://gitlab.com/gitlab-org/gitlab/-/issues/212985
+      it 'still builds notes for existing resource milestone events' do
+        notes = described_class.new(issue, user).execute
+
+        expect(notes.size).to eq(3)
+      end
+    end
+  end
+end