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: Ifd51e726de277d33ff61db47110bf8b5563fcda7

.gitignore

@@ -14,7 +14,7 @@ AUTHORS
 .update-venv/
 ChangeLog
 *.egg
-.testrepository/
+.stestr/
 .project
 .pydevproject
 oslo.db.egg-info/

.stestr.conf

@@ -0,0 +1,4 @@
+[DEFAULT]
+test_path=${OS_TEST_PATH:-oslo_db/tests}
+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:-60} \
-             ${PYTHON:-python} -m subunit.run discover -t ./ ./oslo_db/tests $LISTOPT $IDOPTION
-test_id_option=--load-list $IDFILE
-test_list_option=--list

lower-constraints.txt

@@ -58,10 +58,10 @@ smmap==0.9.0
 SQLAlchemy==1.0.10
 sqlalchemy-migrate==0.11.0
 sqlparse==0.2.2
-stestr==1.0.0
 stevedore==1.20.0
 Tempita==0.5.2
 testrepository==0.0.18
+stestr==2.0.0
 testresources==2.0.0
 testscenarios==0.4
 testtools==2.2.0

test-requirements.txt

@@ -9,7 +9,7 @@ mock>=2.0.0 # BSD
 python-subunit>=1.0.0 # Apache-2.0/BSD
 oslotest>=3.2.0 # Apache-2.0
 oslo.context>=2.19.2 # Apache-2.0
-testrepository>=0.0.18 # Apache-2.0/BSD
+stestr>=2.0.0 # Apache-2.0
 testtools>=2.2.0 # MIT
 os-testr>=1.0.0 # Apache-2.0
 bandit>=1.1.0 # Apache-2.0

tools/pretty_tox.sh

@@ -1,16 +0,0 @@
-#!/usr/bin/env bash
-
-# return nonzero exit status of rightmost command, so that we
-# get nonzero exit on test failure without halting subunit-trace
-set -o pipefail
-
-
-TESTRARGS=$1
-
-python setup.py testr --testr-args="--subunit $TESTRARGS" | subunit-trace -f
-retval=$?
-# NOTE(mtreinish) The pipe above would eat the slowest display from pbr's testr
-# wrapper so just manually print the slowest tests
-echo -e "\nSlowest Tests:\n"
-testr slowest
-exit $retval

tools/run-pifpaf-tests.sh

@@ -3,5 +3,5 @@ set -e
 # Replace mysql:// by mysql+pymysql:// and add sqlite
 export OS_TEST_DBAPI_ADMIN_CONNECTION="${OS_TEST_DBAPI_ADMIN_CONNECTION/#mysql:/mysql+pymysql:};sqlite://"
 echo $OS_TEST_DBAPI_ADMIN_CONNECTION
-tools/pretty_tox.sh $*
-TEST_EVENTLET=1 tools/pretty_tox.sh $*
+stestr run $*
+TEST_EVENTLET=1 stestr run $*

tox.ini

@@ -8,7 +8,7 @@ whitelist_externals = bash
                       env
 setenv =
    VIRTUAL_ENV={envdir}
-   BASECOMMAND=bash tools/pretty_tox.sh
+   BASECOMMAND=stestr run
    BRANCH_NAME=master
    CLIENT_NAME=oslo.db
 
@@ -20,15 +20,15 @@ deps =
     -r{toxinidir}/test-requirements.txt
     -r{toxinidir}/requirements.txt
 commands =
-  {env:PIFPAF_MYSQL:} {env:PIFPAF_POSTGRESQL:} {env:BASECOMMAND:} '{posargs}'
+  {env:PIFPAF_MYSQL:} {env:PIFPAF_POSTGRESQL:} {env:BASECOMMAND:} {posargs}
 
 passenv = OS_TEST_DBAPI_ADMIN_CONNECTION
 
 [testenv:py27]
 basepython = python2.7
 commands =
-    env TEST_EVENTLET=0 bash tools/pretty_tox.sh '{posargs}'
-    env TEST_EVENTLET=1 bash tools/pretty_tox.sh '{posargs}'
+    env TEST_EVENTLET=0 stestr run {posargs}
+    env TEST_EVENTLET=1 stestr run {posargs}
 
 [testenv:pep8]
 basepython = python3
@@ -43,7 +43,13 @@ commands = {posargs}
 
 [testenv:cover]
 basepython = python3
-commands = python setup.py test --coverage --coverage-package-name=oslo_db --testr-args='{posargs}'
+setenv =
+    PYTHON=coverage run --source oslo_db --parallel-mode
+commands =
+    stestr run '{posargs}'
+    coverage combine
+    coverage html -d cover
+    coverage xml -o cover/coverage.xml
 
 [testenv:docs]
 basepython = python3