How to only throw exception when the mocked method is called for the first time?

Question

I have a method of a mocked object that can be called multiple times (think recursion). The method is defined like this:

public void doCommit() { }

Answer 1

Reading Stubbing Consecutive Calls doco, something like this might do it:

when(mMockedObject.doCommit())
  .thenThrow(new RuntimeException())
  .thenCallRealMethod() 
  .thenThrow(new RuntimeException())
  .thenCallRealMethod();

If you don't want to actually call the underlying method then you should use thenAnswer instead of thenCallRealMethod method and provide an empty stub imlementation.

Answer 2

I figured it out (with some hints from Igor). This is how you stub consecutive void method calls:

doThrow(new RuntimeException()).doNothing().doThrow(...).doNothing().when(mMockedObject).doCommit();

thanks Igor!