Flutter Integration Test

iban_text_form_field_test.dart

import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:integration_test/integration_test.dart';
import 'package:sun/blocs/sun_bloc_provider.dart';
import 'package:sun/helpers/strings.dart';
import 'package:sun/pages/account_inquiry/account_inquiry_page.dart';

import '../../test/test_settings.dart';

void main() {

  testWidgets('Iban TextFormField', (WidgetTester tester) async {
    /// init
    IntegrationTestWidgetsFlutterBinding.ensureInitialized();

    TestSettings.setAuthentication();
    await tester.pumpWidget(MultiBlocProvider(
      providers: SunBlocProvider.getProviders(),
      child: MaterialApp(home: (IntegrationTestPage())),
    ));
    await tester.pumpAndSettle();

    /// execute
    final ibanTextFormField =
        find.byKey(ValueKey('IntegrationTestTextFormField')).first;
    await tester.enterText(ibanTextFormField, '123456789123');

    final ibanToAccountButton =
        find.byKey(ValueKey('IntegrationTestButton')).first;
    await tester.tap(ibanToAccountButton);

    await tester.pumpAndSettle(Duration(seconds: 3));

    /// check outputs
    final errorMessage = find.text(IBAN_IS_INCORRECT);
    await tester.pumpAndSettle(Duration(seconds: 3));

    expect(
      errorMessage,
      findsOneWidget,
    );
  });

}