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.

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

Change-Id: Ide9493cf06b7af03324d46d673047b8ada354e5e
Signed-off-by: Charles Short <zulcss@gmail.com>

.gitignore

@@ -38,6 +38,7 @@ AUTHORS
 ChangeLog
 *.sqlite
 *~
+.stestr
 
 # Vagrant
 .vagrant

.stestr.conf

@@ -0,0 +1,3 @@
+[DEFAULT]
+test_path=./networking_baremetal/tests/unit
+top_dir=./

lower-constraints.txt

@@ -128,7 +128,7 @@ sqlalchemy-migrate==0.11.0
 SQLAlchemy==1.2.5
 sqlparse==0.2.4
 statsd==3.2.2
-stestr==2.0.0
+stestr==1.0.0
 stevedore==1.28.0
 Tempita==0.5.2
 tenacity==4.9.0

test-requirements.txt

@@ -8,7 +8,7 @@ coverage!=4.4,>=4.0 # Apache-2.0
 oslotest>=3.2.0 # Apache-2.0
 python-subunit>=1.0.0 # Apache-2.0/BSD
 testtools>=2.2.0 # MIT
-os-testr>=1.0.0 # Apache-2.0
+stestr>=1.0.0 # Apache-2.0
 testscenarios>=0.4 # Apache-2.0/BSD
 
 # Doc requirements

tox.ini

@@ -12,7 +12,7 @@ deps =
    -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
    -r{toxinidir}/requirements.txt
    -r{toxinidir}/test-requirements.txt
-commands = ostestr {posargs}
+commands = stestr run {posargs}
 
 [testenv:pep8]
 whitelist_externals = bash