1 files changed, 49 insertions, 0 deletions
diff --git a/spec/services/merge_requests/resolve_todos_service_spec.rb b/spec/services/merge_requests/resolve_todos_service_spec.rb
new file mode 100644
index 00000000000..3e6f2ea3f5d
--- /dev/null
+++ b/spec/services/merge_requests/resolve_todos_service_spec.rb
@@ -0,0 +1,49 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe MergeRequests::ResolveTodosService do
+  let_it_be(:merge_request) { create(:merge_request) }
+  let_it_be(:user) { create(:user) }
+
+  let(:service) { described_class.new(merge_request, user) }
+
+  describe '#async_execute' do
+    def async_execute
+      service.async_execute
+    end
+
+    it 'performs MergeRequests::ResolveTodosWorker asynchronously' do
+      expect(MergeRequests::ResolveTodosWorker)
+        .to receive(:perform_async)
+        .with(
+          merge_request.id,
+          user.id
+        )
+
+      async_execute
+    end
+
+    context 'when resolve_merge_request_todos_async feature is disabled' do
+      before do
+        stub_feature_flags(resolve_merge_request_todos_async: false)
+      end
+
+      it 'calls #execute' do
+        expect(service).to receive(:execute)
+
+        async_execute
+      end
+    end
+  end
+
+  describe '#execute' do
+    it 'marks pending todo as done' do
+      pending_todo = create(:todo, :pending, user: user, project: merge_request.project, target: merge_request)
+
+      service.execute
+
+      expect(pending_todo.reload).to be_done
+    end
+  end
+end