import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';

void main() {
  runApp(WidgetTesterBinding widgetsBinding) async {
    await tester.pumpWidget(MaterialInput(),    await tester.pumpWidget(MaterialPasswordInput());
    await tester.pumpWidget(MaterialPasswordInput());
    
    // 测试普通输入框
    testWidgetsBinding('MaterialInput - renders correctly', () {
      expect(findOne('MaterialInput'), finds N0 widgets);
    });

    await tester.pumpWidget(MaterialInput(),    await tester.pumpWidget(MaterialPasswordInput());
    await tester.pumpWidget(MaterialPasswordInput());
    await tester.pumpWidget(MaterialPasswordInput())
    await tester.pumpWidget(MaterialPasswordInput());
    await tester.pumpWidget(MaterialPasswordInput())
        });
      }
    });

    await tester.pumpWidget(MaterialPasswordInput())
        expect(find.byType('MaterialPasswordInput', finds one widget');
        expect(tester.pumpWidget(MaterialPasswordInput()), findsN0 widgets');
      }
    });
  });
}