Calling callbacks with Mockito

Question

I have some code

service.doAction(request, Callback callback);

How can I using Mockito grab the callback object, and call c

Answer 1

You want to set up an Answer object that does that. Have a look at the Mockito documentation, at https://static.javadoc.io/org.mockito/mockito-core/2.8.47/org/mockito/Mockito.html#answer_stubs

You might write something like

when(mockService.doAction(any(Request.class), any(Callback.class))).thenAnswer(
    new Answer