Setup on Mock not returning expected value

Question

Here is a simplified version of a problem I encountered:

public interface IService
{
    IProvider Provider { get; }
}

public interface IProvider
{
    Lis         


        

Answer 1

This is clearly intentional when looking at the source:

https://github.com/moq/moq4/blob/master/Source/Mock.cs

https://github.com/moq/moq4/blob/master/Source/Interceptor.cs

Setup creates a "call" by using AddCall on Interceptor. This contains the following block of code which, as long as we're creating a non-conditional setup, removes all previous setups. It's even commented.

if (!call.IsConditional)
            {
                lock (calls)
                {
                    // if it's not a conditional call, we do
                    // all the override setups.
                    // TODO maybe add the conditionals to other
                    // record like calls to be user friendly and display
                    // somethig like: non of this calls were performed.
                    if (calls.ContainsKey(key))
                    {
                        // Remove previous from ordered calls
                        InterceptionContext.RemoveOrderedCall(calls[key]);
                    }

                    calls[key] = call;
}