Moq Mocking and tracking Session values

Question

I\'m having problems returning a Session value set from mocking using Moq. Using the following

public class TestHelpers
{
 public long sessionValue = -1;
 pu         


        

Answer 1

It's because you're returning the value in the getter which was passed by value. So everytime you invoke the getter, you get the same value returned.

Change the Returns() to use a delegate so it is evaluated every time. That way you will get the correct value every time :)

Much easier on the eye than a SetupGet embedded inside a SetupSet.

httpContext.SetupSet(x => x.Session["id"] = It.IsAny())
        .Callback((string name, object val) => sessionValue = (long)val);
httpContext.SetupGet(x => x.Session["id"]).Returns(() => sessionValue);