无法分配给 .. 因为它是一个组方法

Question

I am using Moq to write test cases and when I try to assign the mock function within the constructor it comes up with the error saying that I cannot assign it because the target method is a group method however there is only one method defined.

I have written an interface etc. as follows:

...

public interface IRSPPortal
{
    string GetOrderStatus(OrderInfo OrderNum);
}

public class RSPPortal : IRSPPortal
{

    public RSPPortal(IRSPPortal GetOrderStatusMock)
    {
        this.GetOrderStatus = GetOrderStatusMock; //This line gives the error
    }

    public string GetOrderStatus(OrderInfo OrderNum)
    {
         //stuff done here to access a database
    }
}

...

There is only one method GetOrderStatus(OrderInfo OrderNum) so I don't know why it has classified it as a method group. What is the simplest way to overcome this error?

I have tried to use this.GetOrderStatus = GetOrderStatusMock.GetOrderStatus; but that didn't work either.

Thanks everyone.

Answer 1

That's not how Moq works. If you want to mock IRSPPortal:

Mock<IRSPPortal> rspPortalMock = new Mock<IRSPPortal>();

rspPortalMock.Setup(a => a.GetOrderStatus(It.IsAny<OrderInfo>())).Returns(<string you want returned from the mocked method>);

Now you have a mock of IRSPPortal that will return whatever string you want from GetOrderStatus.

To use that mocked object just pass in rspPortalMock.Object to whatever class is using IRSPPortal.