/// A flag that indicates whether the NotificationProvider is being processed.
  bool _isProcess = false;

  set isProcess(bool value) {
    _isProcess = value;
    notifyListeners();
  }

  bool get isProcess => _isProcess;

  NotificationProvider({required this.fetchNotificationUseCase});

  //TODO("Satoshi"): catch exception or error
  /// Fetch notification from api-server.
  Future<void> fetchNotification() async {
    try {
      isProcess = true;
      final res = await fetchNotificationUseCase.fetchNotification();

      notificationList.clear();
      notificationList.addAll(res);

      isProcess = false;
      notifyListeners();
    } catch (e) {
      isProcess = false;
      notifyListeners();
      debugPrint(e.toString());
    }
  }

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我想测试isProcess属性是否更改为true和false。但是我唯一能测试的是在fetchNotification方法完成后isProcess是否为false。如何测试isProcess的变化？
这是我写的测试代码

test('then isProcess is being false', () async {
    await notificationProvider.fetchNotification();

    expect(notificationProvider.isProcess, false);
  });

型