'In the case of assertFailure failing, check that we get lots of
information about the exception that was raised.'

def test_assertFailure_moreInfo(self):

    try:
        (1 / 0)
    except ZeroDivisionError:
        f = failure.Failure()
        d = defer.fail(f)
    d = self.assertFailure(d, RuntimeError)
    d.addErrback(self._checkInfo, f)
    return d
