FlutterI18nDelegate is breaking tests

[ghost]

I'm trying to create a WidgetHelper class that will build the MaterialApp for every test. In this class I use the FlutterI18nDelegate:

class WidgetTestHelper {
  const WidgetTestHelper();

  MaterialApp generateApp(Widget body,) {
    return MaterialApp(
      theme: theme.light,
      localizationsDelegates: [
        FlutterI18nDelegate(
            useCountryCode: true, fallbackFile: 'en', path: 'lib/assets/i18n'),
        GlobalMaterialLocalizations.delegate,
        GlobalWidgetsLocalizations.delegate
      ],
      home: Scaffold(
        body: body,
      ),
    );
  }
}

If I try now to run these tests together:

void main() {
  testWidgets('Should find a FlatButton', (WidgetTester tester) async {
    WidgetTestHelper helper = WidgetTestHelper();

    await tester.pumpWidget(helper.generateApp(FlatButton()));
    await tester.pumpAndSettle();
    expect(find.byType(FlatButton), findsOneWidget);
  });

  testWidgets('Should find a RaisedButton', (WidgetTester tester) async {
    WidgetTestHelper helper = WidgetTestHelper();
    await tester.pumpWidget(helper.generateApp(RaisedButton()));
    await tester.pumpAndSettle();
    expect(find.byType(RaisedButton), findsOneWidget);
  });
}

they will fail while, if I test them one by one, they succeed. If now I remove the FlutterI18nDelegate and run again the tests together, they will succeed. Is it possible that this FlutterI18nDelegate creates some dependency between these tests?

[ghost]

Closed because there was an error in my implementation.

[ilteoood]

Hi,
Can you explain your fix?
I'm sure that someone will appreciate it 😁