'If startDebugMode() is called, calling Failure() will first call
pdb.post_mortem with the traceback.'

def test_regularFailure(self):

    try:
        (1 / 0)
    except:
        (typ, exc, tb) = sys.exc_info()
        f = failure.Failure()
    self.assertEqual(self.result, [tb])
    self.assertFalse(f.captureVars)
