Return custom value(String) from method if this method is void using Mokito testing

Question

tried

doAnswer(new Answer<String>() {
                @Override
                public String answer(InvocationOnMock invocation) throws Throwable {               
                    return "String";
                }
            }).when(object).voidMethod();
            Assert.assertEquals("String",object.voidMethod());

and

doReturn("String").when(object.voidMethod())

but this not works because voidMethod() is void. Is any variants not to use doThrow()?
I want to emulate answer of some service this void method sends some data

Possible duplicate of [How to mock/test method that returns void, possibly in Mockito](http://stackoverflow.com/questions/6382955/how-to-mock-test-method-that-returns-void-possibly-in-mockito) — Andrew Tobilko, Apr 15 '16 at 10:09
Why would you want a void method to return something anyway? What do you test by doing so? — mareckmareck, Apr 15 '16 at 10:26
I want to emulate answer of some service this void method sends some data — neklans, Apr 15 '16 at 10:30

score 0 · Answer 1 · answered Apr 15 '16 at 10:25

0

I don't see a way to ever make a method return something (via Mockito), if the signature of that method says it returns void. I think it's pretty much impossible.

answered Apr 15 '16 at 10:25

mareckmareck

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Return custom value(String) from method if this method is void using Mokito testing

1 Answers1