Mocking a Spy method with Mockito

Question

I am writing a unit test for a FizzConfigurator class that looks like:

public class FizzConfigurator {
    public void doFoo(String msg) {
        d         


        

Answer 1

I wouldn't use exceptions to test that, but verifications. And another problem is that you can't use when() with methods returning void.

Here's how I would do it:

FizzConfigurator fixture = Mockito.spy(new FizzConfigurator());
doNothing().when(fixture).doWidget(Mockito.anyString(), Mockito.any()));
fixture.doBuzz("some string");
Mockito.verify(fixture).doWidget("some string", Config.SOMETIMES);