Moqing UnitOfWork 与 lambda 表达式

Question

我有这样的东西要测试：

public void example(ModelView modelView)
        {
            //...
            var statustId= 1; 
            var requests = _unitOfWork.RequestRepository.Get(m => m.RequestStatusId == statusId);

            var requests = _unitOfWork.RequestRepository.Get(m => m.RequestTypeId == modelView.RequestTypeId);

            var oldRequests = _unitOfWork.RequestRepository.Get(m => m.Created == DateTime.Now.AddDays(-7));
            //...
        }

如何用不同的数据模拟所有 "GET"？

这是我目前得到的结果：不确定表达式应该是什么样子，因为它使用了函数中的变量。

[Test]
public void Test()
{
    //Arrange
    _requestGenericRepo.Setup(m => m.Get(
      It.Is<Expression<Func<Request, bool>>>(e => e.Equals(First GET - using local variable);
    _requestGenericRepo.Setup(m => m.Get(
      It.Is<Expression<Func<Request, bool>>>(e => e.Equals(Second GET - using variable from modelView));
    _requestGenericRepo.Setup(m => m.Get(
      It.Is<Expression<Func<Request, bool>>>(e => e.Equals(Third GET));
    //Act
    var response = _controller.Example( new ModelView
    {
       RequestTypeId= 1
    }); 
    //Assert
    ...
}

--------------------编辑：------------------------ ------------------

很高兴知道如何按照上述方式进行操作，但我可以像这样将所有 Get( 更改为 Get().Where：

public void example(ModelView modelView)
        {
            //...
            var statustId= 1; 
            var requests = _unitOfWork.RequestRepository.Get().Where(m => m.RequestStatusId == statusId);

            var requests = _unitOfWork.RequestRepository.Get().Where(m => m.RequestTypeId == modelView.RequestTypeId);

            var oldRequests = _unitOfWork.RequestRepository.Get().Where(m => m.Created == DateTime.Now.AddDays(-7));
            //...
        }


[Test]
public void Test()
{
    //Arrange
    _requestGenericRepo.Setup(m => m.Get(
      It.IsAny<Expression<Func<Request, bool>>>());

    //Act
    var response = _controller.Example( new ModelView
    {
       RequestTypeId= 1
    }); 
    //Assert
    ...
}

Answer 1

RequestRepository.Get 方法的 return 值是多少？您可以尝试使用 SetupSequence 并选择要测试的路径。类似于：

 _requestGenericRepo.SetupSequence(m => m.Get(It.IsAny<Expression<Func<Request, bool>>>())
    .Returns(/*First call*/)
    .Returns(/*Second call*/)
    .Returns(/*Third call*/);

Moqing UnitOfWork 与 lambda 表达式

Moqing UnitOfWork with lambda Expression

c#

lambda

nunit

unit-testing

moq