Switch to stestr

According to Openstack summit session [1],
stestr is maintained project to which all Openstack projects should migrate.
Let's switch to stestr as other projects have already moved to it.

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

Change-Id: Ibee9bd5c371f6f94131cccf093ec2100e258f411

.gitignore

@@ -12,7 +12,7 @@ build/
 doc/build/
 doc/source/api/
 dist/
-.testrepository/
+.stestr/
 .project
 .pydevproject
 

.stestr.conf

@@ -0,0 +1,3 @@
+[DEFAULT]
+test_path=./oslo_rootwrap/tests
+top_path=./

.testr.conf

@@ -1,4 +0,0 @@
-[DEFAULT]
-test_command=OS_STDOUT_CAPTURE=1 OS_STDERR_CAPTURE=1 OS_TEST_TIMEOUT=60 ${PYTHON:-python} -m subunit.run discover -t ./ . $LISTOPT $IDOPTION
-test_id_option=--load-list $IDFILE
-test_list_option=--list

lower-constraints.txt

@@ -40,8 +40,8 @@ smmap==0.9.0
 snowballstemmer==1.2.1
 Sphinx==1.6.2
 sphinxcontrib-websupport==1.0.1
+stestr==2.0.0
 stevedore==1.20.0
-testrepository==0.0.18
 testtools==2.2.0
 traceback2==1.4.0
 unittest2==1.1.0

test-requirements.txt

@@ -5,8 +5,8 @@
 hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 
 fixtures>=3.0.0 # Apache-2.0/BSD
-testrepository>=0.0.18 # Apache-2.0/BSD
 testtools>=2.2.0 # MIT
+stestr>=2.0.0 # Apache-2.0
 
 # this is required for the docs build jobs
 sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD

tox.ini

@@ -12,8 +12,8 @@ deps =
 # run in a separate process
 whitelist_externals = env
 commands =
-  python setup.py testr --slowest --testr-args='(?!tests.test_functional_eventlet)tests {posargs}'
-  env TEST_EVENTLET=1 python setup.py testr --slowest --testr-args='tests.test_functional_eventlet'
+  stestr run --slowest (?!tests.test_functional_eventlet)tests {posargs}
+  env TEST_EVENTLET=1 stestr run --slowest tests.test_functional_eventlet
 
 [testenv:py27]
 basepython = python2.7
@@ -31,9 +31,13 @@ commands =
 basepython = python3
 deps = {[testenv]deps}
     coverage
+setenv =
+    PYTHON=coverage run --source $project --parallel-mode
 commands =
-  python setup.py testr --coverage
-
+    stestr run '{posargs}'
+    coverage combine
+    coverage html -d cover
+    coverage xml -o cover/coverage.xml
 
 [testenv:venv]
 basepython = python3