'Create Exchange where an exception is raised and not silenced.'

def test_exchange_declare_raises_exception_not_silenced(self):

    unique_exception = Exception(u'This    exception    should    not    be    silenced')
    self.mock_broker.addExchange.side_effect = unique_exception
    with pytest.raises(unique_exception.__class__):
        self.my_channel.exchange_declare()
