RootCauseunvalidated
`OrderService` is an interface - the mocking here was correct. But the implementation `OrderServiceImpl` was also mocked. Tension: there is no warning by Mockito when you mock an interface and the implementation for it. Outcome: After removing the Mock of the implementation, it works exactly as it should.
7ef428e0-5f8a-4470-a9dd-132b0d8a867e
OrderService is an interface - the mocking here was correct. But the implementation OrderServiceImpl was also mocked. Tension: there is no warning by Mockito when you mock an interface and the implementation for it. Outcome: After removing the Mock of the implementation, it works exactly as it should.