pumpAndSettle timed out

Nessa parte do codigo, a minha rotina de teste presenta erro de time out Mais precisamente na linha await tester.pumpAndSettle();

void main() {
  testWidgets('Should save a contact', (tester) async {
    final mockContactDao = MockContactDao();
    await tester.pumpWidget(BytebankApp(
      contatosDao: mockContactDao,
    ));

    final dashboard = find.byType(Dashboard);
    expect(dashboard, findsOneWidget);

    final transferFeatureItem = find.byWidgetPredicate((widget) =>
        featureItemMatcher(widget, 'Transferir', Icons.monetization_on));
    expect(transferFeatureItem, findsOneWidget);
    await tester.tap(transferFeatureItem);
    await tester.pumpAndSettle();

    final contactsList = find.byType(ContatosLista);
    expect(contactsList, findsOneWidget);