Exception using InOrder method

[Daní]

Hi JustMock team,

I'm trying to test that methods are being called in the correct order. I have the following code in one of my tests:

 var busyMonitor = Mock.Create<IBusyMonitor>();
target.BusyMonitor = busyMonitor;
Mock.Arrange(() => busyMonitor.RegisterActivity(Arg.IsAny<BusyActivity>())).InOrder();
Mock.Arrange(() => busyMonitor.UnregisterActivity(Arg.IsAny<BusyActivity>())).InOrder();
target.DoSomethiing();

Mock.Assert(busyMonitor);

Calling target.DoSomething involves calling BusyMonitor.RegisterActivity and BusyMonitot.UnregisterActivity methods. However I'm getting an exception when target objject insance calls BusyMonitor.UnregisterActivity. 

The excepcion thrown is an ArgumentNullException with message:"Value cannot be null. Parameter name: source"

[Kaloyan]

Hi Dani,

I tried reproducing such issue with no success.

Could you send us a sample project, reproducing the unexpected behavior. This will help us investigate it further and provide a solution.

Thanks for the cooperation.

Regards,
Kaloyan
the Telerik team