'Test the _create_transport_hosts method for single broker_hosts.'

def test_create_transport_hosts_single_broker(self):

    thosts = self.commands._create_transport_hosts('guest', 'devstack', broker_hosts='127.0.0.1:5672')
    self.assertEqual(1, len(thosts))
    self.assertEqual('127.0.0.1', thosts[0].hostname)
    self.assertEqual(5672, thosts[0].port)
