Switch to using stestr

According to Openstack summit session [1] stestr is
maintained project to which all Openstack projects
should migrate.
Let's switch it then.

Also sync the version of the requests-mock to
the current global requirements.

[1] https://etherpad.openstack.org/p/YVR-python-pti

Signed-off-by: Charles Short <zulcss@gmail.com>
Signed-off-by: Luigi Toscano <ltoscano@redhat.com>
Change-Id: I599c74c3ac152c0fc1bc0dddfda8c05a41ddf5a1

lower-constraints.txt

@@ -34,7 +34,6 @@ netifaces==0.10.4
 openstacksdk==0.11.2
 os-client-config==1.28.0
 os-service-types==1.2.0
-os-testr==1.0.0
 osc-lib==1.8.0
 oslo.config==5.2.0
 oslo.context==2.19.2
@@ -64,14 +63,13 @@ python-subunit==1.0.0
 pytz==2013.6
 PyYAML==3.12
 requests==2.14.2
-requests-mock==1.1.0
+requests-mock==1.2.0
 requestsexceptions==1.2.0
 rfc3986==0.3.1
 simplejson==3.5.1
 six==1.10.0
 stestr==1.0.0
 stevedore==1.20.0
-testrepository==0.0.18
 testtools==2.2.0
 traceback2==1.4.0
 unittest2==1.1.0

test-requirements.txt

@@ -7,6 +7,5 @@ hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 coverage!=4.4,>=4.0 # Apache-2.0
 mock>=2.0.0 # BSD
 oslotest>=3.2.0 # Apache-2.0
-os-testr>=1.0.0 # Apache-2.0
+stestr>=1.0.0 # Apache-2.0
 requests-mock>=1.2.0 # Apache-2.0
-testrepository>=0.0.18 # Apache-2.0/BSD

tox.ini

@@ -14,7 +14,7 @@ deps =
     -r{toxinidir}/requirements.txt
     -r{toxinidir}/test-requirements.txt
 commands = find . -type f -name "*.pyc" -delete
-           ostestr {posargs}
+           stestr run {posargs}
 whitelist_externals = find
                       rm
 passenv = http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY