public void YouCanCheckToSeeIfAMethodWasCalled()
{
// Create a stub.
ISampleClass stub = CreateStub();
// Call some method.
stub.MethodThatReturnsInteger("foo");
// Check that particular method was called.
stub.Received().MethodThatReturnsInteger("foo");
stub.ReceivedWithAnyArgs().MethodThatReturnsInteger(Arg.Any <string>());
}