Question

我是Moq的新手，我正在尝试模拟我的存储库。

我正在编写单元测试的方法是调用存储库，如下所示：

var paymentState = _agreementPaymentStateRepository.SingleOrDefault(
                         s => s.Agreement.ID == agreementID);

我正试图像这样设置我的moq：

_agreementPaymentStateRepositoryMock
         .Setup(m => m.SingleOrDefault(s => s.AgreementID == 1))
         .Returns(AgreementPayMentStateMocks.GetOne);

我将模拟的存储库传递给类，但调用完成后，paymentState变量为null。（我会轻易地跳过指定表达式。）

非常感谢任何帮助。

public PaymentState GetPaymentState(int agreementID)
    {
        try
        {
            _log.AgreementPaymentStateServiceGetStateStart(agreementID);
            var paymentState =
                _agreementPaymentStateRepository.SingleOrDefault(s => s.Agreement.ID == agreementID);

            var stateToGet = MapStateToGet(paymentState);

            _log.AgreementPaymentStateServiceGetStateReturn(agreementID, paymentState.LatestStatus);
            return stateToGet;
        }
        catch (Exception ex)
        {
            _log.ServiceException(ex.ToString());
            throw;
        }
    }

和测试：

 var paymentState = AgreementPayMentStateMocks.GetPayMentState();

        _agreementPaymentStateRepositoryMock.Setup(m => m.SingleOrDefault(s => s.AgreementID == 1)).Returns(AgreementPayMentStateMocks.GetOne);

        var service = new AgreementPaymentStateService(_agreementPaymentStateRepositoryMock.Object, _log.Object);
        var result = service.GetPaymentState(1);

        _agreementPaymentStateRepositoryMock.Verify(m => m.Match(aps => aps.SingleOrDefault(s => s.AgreementID == 1)), Times.Exactly(1));

Answer 1

不要在SingleOrDefault调用中使用具体谓词，而是使用Moq的It.IsAny<T>方法：

_agreementPaymentStateRepositoryMock
         .Setup(m => m.SingleOrDefault(It.IsAny<Expression<Func<bool,PaymentState>>>()))
         .Returns(AgreementPayMentStateMocks.GetOne);

Moq验证是否使用任何表达式调用了Method

1 个答案: