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: I7eaadde83243afed1929bd29fff63272e58e072b

.gitignore

@@ -14,7 +14,7 @@ build
 *.log
 .coverage
 .coverage.*
-/.testrepository/*
+.stestr/
 .tox
 .venv
 cover

.stestr.conf

@@ -0,0 +1,4 @@
+[DEFAULT]
+test_path=${OS_TEST_PATH:-./designate_tempest_plugin}
+top_dir=./
+

.testr.conf

@@ -1,12 +0,0 @@
-[DEFAULT]
-test_command=OS_STDOUT_CAPTURE=${OS_STDOUT_CAPTURE:-1} \
-             OS_STDERR_CAPTURE=${OS_STDERR_CAPTURE:-1} \
-             OS_LOG_CAPTURE=${OS_LOG_CAPTURE:-1} \
-             OS_DEBUG=${OS_DEBUG:-1} \
-             OS_TEST_TIMEOUT=${OS_TEST_TIMEOUT:-500} \
-             OS_TEST_LOCK_PATH=${OS_TEST_LOCK_PATH:-${TMPDIR:-'/tmp'}} \
-             ${PYTHON:-python} -m subunit.run discover -t ${OS_TOP_LEVEL:-./} ${OS_TEST_PATH:-./designate_tempest_plugin} $LISTOPT $IDOPTION
-
-test_id_option=--load-list $IDFILE
-test_list_option=--list
-group_regex=([^\.]*\.)*

tools/pretty_tox.sh

@@ -1,6 +0,0 @@
-#! /bin/sh
-
-TESTRARGS=$1
-
-exec 3>&1
-status=$(exec 4>&1 >&3; ( python setup.py testr --slowest --testr-args="--subunit $TESTRARGS"; echo $? >&4 ) | subunit-trace -f) && exit $status

tox.ini

@@ -18,7 +18,7 @@ whitelist_externals = sh
                       rm
 commands =
   find . -type f -name "*.pyc" -delete
-  sh tools/pretty_tox.sh '{posargs}'
+  stestr run {posargs}
 passenv = http_proxy
           HTTP_PROXY
           https_proxy