'Invalid parameter count' thrown during setup of Callback for Instance methods that return void

[paulose]

context.Setup(() => It.IsAny<MessageQueue>().Send(message)).Callback((Message m) =>
{
    called = true;
});

When calling the above line, Smocks throws an error 'Invalid parameter count'. I am trying to mock the System.Messaging.MessageQueue.Send method here.

[vanderkleij]

Thanks for reporting this problem. I can reproduce the issue and will look into it shortly.

If you only intend to use this to confirm that the setup was called, you can use .Verifiable() instead of Callback(), followed by a call to context.Verify() after the method should've been invoked.

[paulose]

Thanks. I got it working for the moment with Verifiable. The issue seems to be in the condition for extraParameters in the SetupBase.cs

protected int ParameterCount
{
    get
    {
        int extraParameters = (!MethodCall.Method.IsStatic && 
            !MethodCall.Method.IsConstructor) ? 1 : 0;
        return MethodCall.Method.GetParameters().Length + extraParameters;
    }
}

[vanderkleij]

Fixed in nuget package 0.4.17. Thanks for reporting and pointing out where the issue arose! 👍

[paulose]

Works like a charm. Thanks for closing the issue at that speed.