'Both delayed calls and selectables can appear in the same error.'

def test_formatDelayedCallsAndSelectables(self):

    error = DirtyReactorAggregateError(['bleck', 'Boozo'], ['Sel1', 'Sel2'])
    self.assertEqual(str(error), 'Reactor    was    unclean.\nDelayedCalls:    (set    twisted.internet.base.DelayedCall.debug    =    True    to    debug)\nbleck\nBoozo\nSelectables:\nSel1\nSel2')
