C# and Moq, raise event declared in interface from abstract class mock?

You may be able to do the desired cast if you make your mock a mult-mock. Since Moq mocks are tied to an individual type via the generic argument, you must explicitly progressively add additional interfaces or super-classes to the mock, and then use the end product in your test. A quick example of how to do this is below.

Given the way you're doing this, there is no implementation of the event. The interface itself is just the contract that says "I have a PropertyChanged event." If you want to raise that event, you have to provide a handler, even if it doesn't do anything.

Implement the PropertyChanged event in your mocked class to raise the event.

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