When you have written a few tests using Easymock you might get into the fun situation that you need to mock a method that returns void and you want the method to throw an exception. What do you do?

Usually you would write something like:

expect(mockSender.send(message)).andThrow(new Exception());

But this does not work with void methods because expect() cannot work with a void return value.

Solution

Use expectLastCall():

mockSender.send(message);expectLastCall().andThrow( new SendFailedException("Error"));