tests break with python 3.5.2 about aioamqp

[smurfix]

You mean this one?

======================================================================
ERROR: test_close (aioamqp.tests.test_connection_close.CloseTestCase)
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Traceback (most recent call last):
  File "/home/travis/build/Polyconseil/aioamqp/aioamqp/tests/testcase.py", line 129, in tearDown
    self.loop.run_until_complete(go())
  File "/opt/python/3.5.2/lib/python3.5/asyncio/base_events.py", line 387, in run_until_complete
    return future.result()
  File "/opt/python/3.5.2/lib/python3.5/asyncio/futures.py", line 274, in result
    raise self._exception
  File "/opt/python/3.5.2/lib/python3.5/asyncio/tasks.py", line 239, in _step
    result = coro.send(None)
  File "/opt/python/3.5.2/lib/python3.5/asyncio/coroutines.py", line 121, in send
    return self.gen.send(value)
  File "/home/travis/build/Polyconseil/aioamqp/aioamqp/tests/testcase.py", line 125, in go
    yield from amqp.close()
  File "/opt/python/3.5.2/lib/python3.5/asyncio/coroutines.py", line 105, in __next__
    return self.gen.send(None)
  File "/home/travis/build/Polyconseil/aioamqp/aioamqp/protocol.py", line 122, in close
    frame.write_frame(encoder)
  File "/home/travis/build/Polyconseil/aioamqp/aioamqp/frame.py", line 379, in write_frame
    return self.writer.write(transmission.getvalue())
AttributeError: 'NoneType' object has no attribute 'write'

[RemiCardona]

Travis didn't catch that one. It caught 2 other tests : test_connection_lost and test_heartbeat.