Migrate to stestr

stestr is actively maintained. OpenStack is migrating to stestr,
go ahead.

Remove the depend on python-subunit as well. stestr takes care of
that for us

Change-Id: I6f845ab4ef1a1c91048666614799a03ab02ab765

.gitignore

@@ -27,6 +27,7 @@ cover-master
 nosetests.xml
 .testrepository
 .venv
+.stestr
 
 # Translations
 *.mo
@@ -66,3 +67,4 @@ etc/zun/policy.yaml.sample
 
 # etcd config file
 devstack/etcd.override
+

.stestr.conf

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

.testr.conf

@@ -1,7 +0,0 @@
-[DEFAULT]
-test_command=OS_STDOUT_CAPTURE=${OS_STDOUT_CAPTURE:-1} \
-             OS_STDERR_CAPTURE=${OS_STDERR_CAPTURE:-1} \
-             OS_TEST_TIMEOUT=${OS_TEST_TIMEOUT:-45} \
-             ${PYTHON:-python} -m subunit.run discover -t ./ ${OS_TEST_PATH:-./zun/tests/unit} $LISTOPT $IDOPTION
-test_id_option=--load-list $IDFILE
-test_list_option=--list

test-requirements.txt

@@ -16,9 +16,9 @@ osprofiler>=1.4.0 # Apache-2.0
 os-testr>=1.0.0 # Apache-2.0
 PyMySQL>=0.7.6 # MIT License
 tempest>=17.1.0 # Apache-2.0
-testrepository>=0.0.18 # Apache-2.0/BSD
 testresources>=2.0.0 # Apache-2.0/BSD
 testscenarios>=0.4 # Apache-2.0/BSD
 testtools>=2.2.0 # MIT
 reno>=2.5.0 # Apache-2.0
 os-api-ref>=1.4.0 # Apache-2.0
+stestr>=1.0.0 # Apache-2.0

tools/pretty_tox.sh

@@ -1,16 +0,0 @@
-#!/usr/bin/env bash
-
-set -o pipefail
-
-TESTRARGS=$1
-
-# --until-failure is not compatible with --subunit see:
-#
-# https://bugs.launchpad.net/testrepository/+bug/1411804
-#
-# this work around exists until that is addressed
-if [[ "$TESTARGS" =~ "until-failure" ]]; then
-    python setup.py testr --slowest --testr-args="$TESTRARGS"
-else
-    python setup.py testr --slowest --testr-args="--subunit $TESTRARGS" | subunit-trace -f
-fi

tox.ini

@@ -18,8 +18,8 @@ deps = -r{toxinidir}/requirements.txt
 
 commands =
   find . -type f -name "*.py[c|o]" -delete
-  rm -rf .testrepository/times.dbm
+  stestr run {posargs}
-  bash tools/pretty_tox.sh '{posargs}'
+  stestr slowest
 
 passenv = http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY
 
@@ -38,12 +38,20 @@ setenv = PYTHONHASHSEED=0
 commands = {posargs}
 
 [testenv:cover]
-commands = {toxinidir}/tools/cover.sh {posargs}
+setenv =
+    {[testenv]setenv}
+    PYTHON=coverage run --source zun --parallel-mode
+commands =
+    stestr run {posargs}
+    coverage combine
+    coverage html -d cover
+    coverage xml -o cover/coverage.xml
+    coverage report
 
 [testenv:docs]
 commands =
     doc8 -e .rst specs/ doc/source/ CONTRIBUTING.rst HACKING.rst README.rst
-    python setup.py build_sphinx
+    sphinx-build -W -d doc/build/doctrees -b html doc/source/ doc/build/html
 
 [testenv:debug]
 commands = oslo_debug_helper {posargs}
@@ -62,7 +70,8 @@ setenv = {[testenv]setenv}
 deps = {[testenv]deps}
 commands =
   find . -type f -name "*.py[c|o]" -delete
-  bash tools/pretty_tox.sh '{posargs}'
+  stestr run {posargs}
+  stestr slowest
 
 [flake8]
 filename = *.py,app.wsgi