我正在为我们公司的应用程序编写测试。
我正在测试的登录界面有2个简单的文本字段，和一个按钮。由于输入了错误的凭据，测试失败。然后显示ErrorDialog（自定义小部件）。ErrorDialog显示一个简单的错误消息，并有一个“完成”按钮。当我尝试通过单击“完成”关闭小部件时，没有任何React。测试似乎找不到小部件。但是当我按下完成按钮时，Flutter确实会为我的点击动作提供建议。但所有建议的解决方案都不起作用。有人知道我做错了什么吗？

import 'package:**/app/main.dart' as app;
import 'package:common/presentation/generic/widgets/buttons/borderless_button.dart';
import 'package:common/presentation/generic/widgets/buttons/**_blue_button.dart';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:integration_test/integration_test.dart';
void main() {
  IntegrationTestWidgetsFlutterBinding.ensureInitialized();
  group('login page end-to-end tests', () {
    testWidgets(
        'STEP 1: Tap on login from splashscreen and fill in the login credentials. \n'
        'STEP 2: Tap on the login button in order to attempt authentication with an invalid email adress. \n'
        'STEP 3: Press done button when invalid email is entered. \n'
        'STEP 4: Enter valid credentials. '
        'STEP 5: Tap on login button in order to authenticate with valid password and email \n',
        (tester) async {
      app.main();
      await tester.pumpAndSettle();
      final loginButton = find.byType(BorderlessButton).first;
      await tester.tap(loginButton);
      await tester.pumpAndSettle();
      final userNameField = find.byType(TextFormField).first;
      final passwordField = find.byType(TextFormField).last;
      final submitButton = find.byType(CoinmerceBlueButton).first;
      await tester.enterText(userNameField, 'x');
      await tester.enterText(passwordField, 'x');
      await tester.pumpAndSettle();
      await tester.tap(submitButton);
      await tester.pumpAndSettle();
      final doneButton = find.byKey(const ValueKey("errorDialog"));
      await tester.tap(doneButton);
      await tester.pumpAndSettle();
      expect(
        find.text('Dit lijkt geen geldig e-mailadres te zijn.'),
        findsOneWidget,
      );
    });
  });
}

我的小部件树：

先谢谢你了！