Switch to 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: Idd7629f2a051aadaf53b04a1b331b20d7fa690de

.gitignore

@@ -7,6 +7,7 @@ build
 *.swp
 *.swo
 *.pyc
-.testrepository
 .idea/*
 *~
+!/.stestr.conf
+.stestr/

.stestr.conf

@@ -0,0 +1,3 @@
+[DEFAULT]
+test_path=${OS_TEST_PATH:-./tests/}
+top_dir=./

.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

requirements.txt

@@ -3,5 +3,5 @@
 # integrated gate. Any sync must happen manually as recommended by
 # the openstack release team.
 pbr>=2.0.0,!=2.1.0 # Apache-2.0
-testrepository>=0.0.18 # Apache-2.0/BSD
+stestr>=1.0.0 # Apache-2.0
 testtools>=1.4.0 # MIT

tox.ini

@@ -5,14 +5,18 @@ skipsdist = True
 
 [testenv]
 usedevelop = True
-setenv = VIRTUAL_ENV={envdir}
+setenv =
+  VIRTUAL_ENV={envdir}
+  OS_LOG_CAPTURE={env:OS_LOG_CAPTURE:true}
+  OS_STDOUT_CAPTURE={env:OS_STDOUT_CAPTURE:true}
+  OS_STDERR_CAPTURE={env:OS_STDERR_CAPTURE:true}
 install_command = pip install -U {opts} {packages}
 # Unit test requires docutils and it is recommended to install docutils via
 # sphinx. We use doc/requirements.txt as well to avoid duplicated entries.
 deps =
   -r{toxinidir}/requirements.txt
   -r{toxinidir}/doc/requirements.txt
-commands = python setup.py testr --slowest --testr-args='{posargs}'
+commands = stestr run --slowest {posargs}
 
 [testenv:venv]
 commands = {posargs}