python3: Switch to mox3 instead of mox

In order to transition to a python 3.x compatible world,
lets switch to mox3 which is python 3.x compatible drop-in
replacement of mox.

Change-Id: Iaa22779cd516f842c9f70828f863f90ddae0bab5

oslo/messaging/openstack/common/fixture/moxstubout.py

@@ -16,7 +16,7 @@
 # under the License.
 
 import fixtures
-import mox
+from mox3 import mox
 
 
 class MoxStubout(fixtures.Fixture):

test-requirements.txt

@@ -4,7 +4,7 @@ hacking>=0.8.0,<0.9
 discover
 fixtures>=0.3.14
 mock>=1.0
-mox>=0.5.3
+mox3>=0.7.0
 python-subunit
 testrepository>=0.0.17
 testscenarios>=0.4

tests/test_transport.py

@@ -14,7 +14,7 @@
 #    under the License.
 
 import fixtures
-import mox
+from mox3 import mox
 from oslo.config import cfg
 import six
 from stevedore import driver