如何测试一个方法是否在Dart/Flutter + MobX中被调用？

import 'package:flutter_test/flutter_test.dart';
import 'package:mobx/mobx.dart';
import 'package:mockito/mockito.dart';

import 'package:your_app_name/your_file.dart'; // 导入你要测试的文件

class MockYourClass extends Mock implements YourClass {}

void main() {
  test('Test if method is called', () {
    final mockYourClass = MockYourClass();
    final yourObject = YourClass();

    // 使用when().thenAnswer()来模拟方法的调用
    when(mockYourClass.yourMethod()).thenAnswer((_) => null);

    // 调用你要测试的方法
    yourObject.yourMethod();

    // 使用verify()来验证方法是否被调用
    verify(mockYourClass.yourMethod()).called(1);
  });
}