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: Ia4c71631e4c51ec814bcefc115d4f5690c11e37b

.gitignore

@@ -28,7 +28,6 @@ subunit.log
 !/.gitreview
 !/.mailmap
 !/.pylintrc
-!/.testr.conf
 !/.stestr.conf
 
 # Files created by releasenotes build

.testr.conf

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

lower-constraints.txt

@@ -60,7 +60,6 @@ openstackdocstheme==1.18.1
 openstacksdk==0.11.2
 os-client-config==1.28.0
 os-service-types==1.2.0
-os-testr==1.0.0
 os-xenapi==0.3.1
 osc-lib==1.8.0
 oslo.cache==1.26.0

test-requirements.txt

@@ -20,4 +20,4 @@ WebOb>=1.7.1 # MIT
 WebTest>=2.0.27 # MIT
 oslotest>=3.2.0 # Apache-2.0
 reno>=2.5.0 # Apache-2.0
-os-testr>=1.0.0 # Apache-2.0
+stestr>=1.0.0 # Apache-2.0

tools/ostestr_compat_shim.sh

@@ -1,8 +0,0 @@
-#!/bin/sh
-
-# preserve old behavior of using an arg as a regex when '--' is not present
-case $@ in
-  (*--*) ostestr $@;;
-  ('') ostestr;;
-  (*) ostestr --regex "$@"
-esac

tox.ini

@@ -5,6 +5,9 @@ skipsdist = True
 
 [testenv]
 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}
          PYTHONWARNINGS=default::DeprecationWarning
 usedevelop = True
 deps = -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
@@ -12,8 +15,8 @@ deps = -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/re
        -r{toxinidir}/test-requirements.txt
 whitelist_externals = sh
 commands =
-  {toxinidir}/tools/ostestr_compat_shim.sh {posargs}
-# there is also secret magic in ostestr which lets you run in a fail only
+  stestr run {posargs}
+# there is also secret magic in stestr which lets you run in a fail only
 # mode. To do this define the TRACE_FAILONLY environmental variable.
 
 [testenv:functional]
@@ -39,7 +42,7 @@ sitepackages=True
 whitelist_externals = {[testenv:functional]whitelist_externals}
 commands =
   {toxinidir}/tools/deploy_rootwrap.sh {toxinidir} {envdir}
-  ostestr '{posargs}'
+  stestr run {posargs}
 
 [testenv:dsvm-functional-sswan]
 setenv =
@@ -50,7 +53,7 @@ sitepackages=True
 whitelist_externals = {[testenv:functional]whitelist_externals}
 commands =
   {toxinidir}/tools/deploy_rootwrap.sh {toxinidir} {envdir}
-  ostestr '{posargs}'
+  stestr run {posargs}
 
 [testenv:releasenotes]
 commands = sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
@@ -68,8 +71,15 @@ whitelist_externals = sh
 commands = python ./tools/check_i18n.py ./neutron-vpnaas ./tools/i18n_cfg.py
 
 [testenv:cover]
+setenv =
+    {[testenv]setenv}
+    PYTHON=coverage run --source neutron_vpnaas --parallel-mode
 commands =
-  python setup.py test --coverage --coverage-package-name=neutron_vpnaas --testr-args='{posargs}'
+  stestr run --no-subunit-trace {posargs}
+  coverage combine
+  coverage report --skip-covered
+  coverage html -d cover
+  coverage xml -o cover/coverage.xml
 
 [testenv:venv]
 commands = {posargs}