Flutter:如何测试Widgets State类中的方法？

import 'package:flutter_test/flutter_test.dart';
import 'package:your_app/main.dart';

void main() {
  testWidgets('Test widget state method', (WidgetTester tester) async {
    // 测试代码
  });
}

await tester.pumpWidget(MyApp());

final counterWidget = find.byType(CounterWidget);
final state = tester.state<CounterWidgetState>(counterWidget);
state.increment();

expect(state.counter, 1);

import 'package:flutter_test/flutter_test.dart';
import 'package:your_app/main.dart';

void main() {
  testWidgets('Test widget state method', (WidgetTester tester) async {
    await tester.pumpWidget(MyApp());

    final counterWidget = find.byType(CounterWidget);
    final state = tester.state<CounterWidgetState>(counterWidget);
    state.increment();

    expect(state.counter, 1);
  });
}