Mockito test a void method throws an exception
If you ever wondered how to do it using the new BDD style of Mockito:
willThrow(new Exception()).given(mockedObject).methodReturningVoid(...));
And for future reference one may need to throw exception and then do nothing:
willThrow(new Exception()).willDoNothing().given(mockedObject).methodReturningVoid(...));
The parentheses are poorly placed.
You need to use:
doThrow(new Exception()).when(mockedObject).methodReturningVoid(...);
^
and NOT use:
doThrow(new Exception()).when(mockedObject.methodReturningVoid(...));
^
This is explained in the documentation