1 files changed, 31 insertions, 0 deletions
diff --git a/spec/services/resource_events/change_milestone_service_spec.rb b/spec/services/resource_events/change_milestone_service_spec.rb
index ed234376381..425d5b19907 100644
--- a/spec/services/resource_events/change_milestone_service_spec.rb
+++ b/spec/services/resource_events/change_milestone_service_spec.rb
@@ -14,4 +14,35 @@ RSpec.describe ResourceEvents::ChangeMilestoneService do
       let_it_be(:resource) { create(issuable) } # rubocop:disable Rails/SaveBang
     end
   end
+
+  describe 'events tracking' do
+    let_it_be(:user) { create(:user) }
+
+    let(:resource) { create(resource_type, milestone: timebox, project: timebox.project) }
+
+    subject(:service_instance) { described_class.new(resource, user, old_milestone: nil) }
+
+    context 'when the resource is a work item' do
+      let(:resource_type) { :work_item }
+
+      it 'tracks work item usage data counters' do
+        expect(Gitlab::UsageDataCounters::WorkItemActivityUniqueCounter)
+          .to receive(:track_work_item_milestone_changed_action)
+          .with(author: user)
+
+        service_instance.execute
+      end
+    end
+
+    context 'when the resource is not a work item' do
+      let(:resource_type) { :issue }
+
+      it 'does not track work item usage data counters' do
+        expect(Gitlab::UsageDataCounters::WorkItemActivityUniqueCounter)
+          .not_to receive(:track_work_item_milestone_changed_action)
+
+        service_instance.execute
+      end
+    end
+  end
 end