Convert to oslo.test

bp graduate-oslo-test

Change-Id: Iff1eebac011dab26468a7f1475b5c36b0bb2a7d2
Updated from global requirements

Change-Id: Iddf9be2b384f9c0871a2baf59e94ec5201ca37c6
Gracefully handle consumer cancel notifications

With mirrored queues and clustered rabbit nodes a queue is still
mastered by a single rabbit node. When the rabbit node dies an
election occurs amongst the remaining nodes and a new master is
elected. When a slave is promoted to master it will close all the
open channels to its consumers but it will not close the
connections. This is reported to consumers as a consumer cancel
notification (CCN). Consumers need to re-subscribe to these queues
when they recieve a CCN.

kombu 2.1.4+ reports CCNs as channel errors. This patch updates
the ensure function to be more inline with the upstream kombu
functionality. We now monitor for channel errors as well as
connection errors and initiate a reconnect if we detect an error.

Change-Id: Ie00f67e65250dc983fa45877c14091ad4ae136b4
Partial-Bug: 856764
Don't run python 3 tests by default

Remove py33 from the list of environments used when someone
runs "tox" without any arguments. The python 3.3 tests do
not pass yet, and the expected failure is confusing to new
contributors.

Change-Id: I1f1307153c4a32e59bcffbf340c31dbf3e70173c
Slow down Kombu reconnect attempts

For a rationale for this patch, see the discussion surrounding Bug

When reconnecting to a RabbitMQ cluster with mirrored queues in
use, the attempt to release the connection can hang "indefinitely"
somewhere deep down in Kombu.  Blocking the thread for a bit
prior to release seems to kludge around the problem where it is
otherwise reproduceable.

DocImpact

Change-Id: Ic2ede3046709b831adf8204e4c909c589c1786c4
Partial-Bug: 856764
Allow to requeue the notification message

This patch allow to requeue the notification received by the
notification listener.

Partial implements blueprint notification-subscriber-server

Change-Id: I49c4ba91224c280e479edb19289ccb337a2ab843
Add multiple exchange per listerner in fake driver

This patch allow the FakeListener to listen on multiple FakeExchange.

Partial implements blueprint notification-subscriber-server

Change-Id: I9830cc01efdd931f6628853f7e84b947d7b855c9
Do not leak _unique_id out of amqp drivers

In commit d8d2ad9 we delayed when a message's unique ID gets added to
the duplicate message cache in order to allow for message requeueing.

However, as part of this, we exposed the private _unique_id field
outside of the driver. This commit reverses that change by storing
the ID in the AMQPIncomingMessage object.

Change-Id: Ibeb7896de7ad9abf3c6a43495c1a87aabb762c0d
Adds unit test cases to impl_qpid

Change-Id: I0c056efd9fb8b48d02a11dfb969ee98b736ba017
Closes-Bug: #1255239
notification listener: add allow_requeue param

In commit d8d2ad9 we added support for notification listener endpoint
methods to return REQUEUE, but if a driver does not support this we
raise NotImplementedError when the application attempts to requeue
a message.

This requeuing behaviour might only be used by an application in
unusual, exceptional circumstances and catch users by surprise.

Instead, let's require the application to assert that it needs this
feature in advance and raise NotImplementError at that point if the
driver doesn't support it.

Change-Id: Id0bb0e57d2dcc1ec7d752e98c9b1e8e48d99f35c
Add missing data into the notif. endpoint callback

Some information about the notification (ie: message_id and timestamp)
are currently not available for the application.

This change add them.

Partial implements blueprint notification-subscriber-server

Change-Id: I83e562725205fb270f6065fe1118c3c9865b2294
notify listener: document the metadata callback parameter

Add some details about what the metadata parameter contains.

Change-Id: I191c1c480c679534c1dede9aa85c51615faf0800
Merge "notification listener: add allow_requeue param"
Expose PublishErrorsHandler through oslo.messaging

Fix up the imports so that the log handler for publishing
error messages is available through the oslo.messaging
package instead of users having to know the full path
inside the sub-module.

Change-Id: I5c8ddaf451f7c977d8c400fe920512cdafbc7fdf
Merge "Do not leak _unique_id out of amqp drivers"
Merge "Gracefully handle consumer cancel notifications"
Merge "Slow down Kombu reconnect attempts"
Merge "Don't run python 3 tests by default"
Remove use of sslutils

sslutils is the only oslo-incubator module we use which registers any
config options, and we don't even use those config options at runtime.

The problem with us using oslo-incubator config options is that they
need to be exactly in sync with the oslo-incubator version of those
used by every project using oslo.messaging.

Avoid all this be inlining validate_ssl_version() until we have it
available in a real library.

Change-Id: Id3b0bb2e7ede33ede9b66025d1af113ae60cfc58
Closes-Bug: #1287542
Merge "Remove use of sslutils"