How to ignore several void method calls inside a void method in Mockito

Question

I'm testing a void method that happens to call several other void methods in a class (all of these methods are in the same class). The method is something along these lines...

public void methodToTest() {    methodA();    methodB(); }  void methodA() {    methodA1();    methodA2();    methodA3(); } 

What I'd like to do is cause methodA() above to do nothing. That is, I want methodA() to basically be like this:

void methodA() { } 

I've tried both doThrow() and doAnswer() on methodA() to no avail. It's as if those are both being completely ignored.

An example of what I've tried...

doThrow(new RuntimeException()).when(mockedClass).methodA(); 

Is there a way to do this just using Mockito? I'm not at liberty to change the class that's being modified.

Answer 1

If you are looking to have methodB still execute, while methodA does nothing. This will do that:

TestClass spy = spy(new TestClass()); doNothing().when(spy).methodA(); spy.methodToTest();