Test suite fails when running against RabbitMQ 3

[Free Ekanayaka]

There are a couple of incompatible changes between RabbitMQ 2 and 3 that affect the test suite:

1 - queue_delete now silently succeeds for non-existing queues
2 - support for the "immediate" flag in basic_publish was dropped

Running "cd src; trial txamqp" on Ubuntu 14.04 leads to:

[FAIL]
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1128, in _inlineCallbacks
    result = g.send(result)
  File "/home/ubuntu/src/txamqp/trunk/src/txamqp/test/test_queue.py", line 183, in test_delete_simple
    self.fail("Expected delete of non-existant queue to fail")
twisted.trial.unittest.FailTest: Expected delete of non-existant queue to fail

txamqp.test.test_queue.QueueTests.test_delete_simple
===============================================================================
[ERROR]
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1126, in _inlineCallbacks
    result = result.throwExceptionIntoGenerator(g)
  File "/usr/lib/python2.7/dist-packages/twisted/python/failure.py", line 389, in throwExceptionIntoGenerator
    return g.throw(self.type, self.value, self.tb)
  File "/home/ubuntu/src/txamqp/trunk/src/txamqp/test/test_broker.py", line 95, in test_basic_delivery_immediate
    msg = yield queue.get(timeout=5)
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 588, in _runCallbacks
    current.result = callback(current.result, *args, **kw)
  File "/home/ubuntu/src/txamqp/trunk/src/txamqp/queue.py", line 32, in _raiseIfClosed
    raise Closed()
txamqp.queue.Closed:

txamqp.test.test_broker.BrokerTests.test_basic_delivery_immediate