[Configuration] Switch to stestr.

According to OpenStack summit session, stestr is maintained project to
which all OpenStack projects should migrate.

Change-Id: I4532d02c7298b4e9e19ef079cfb1a365d4d56693

.gitignore

@@ -27,7 +27,7 @@ cover/
 !.coveragerc
 .tox
 nosetests.xml
-.testrepository
+.stestr
 .venv
 
 # Translations

.stestr.conf

@@ -0,0 +1,3 @@
+[DEFAULT]
+test_path=${TEST_PATH:-./paunch/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 ./ . $LISTOPT $IDOPTION
-test_id_option=--load-list $IDFILE
-test_list_option=--list

test-requirements.txt

@@ -7,7 +7,7 @@ hacking>=0.12.0,!=0.13.0,<0.14  # Apache-2.0
 coverage>=4.0,!=4.4  # Apache-2.0
 python-subunit>=0.0.18 # Apache-2.0/BSD
 oslotest>=1.10.0 # Apache-2.0
-testrepository>=0.0.18  # Apache-2.0/BSD
+stestr>=2.0.0  # Apache-2.0
 testscenarios>=0.4  # Apache-2.0/BSD
 testtools>=1.4.0 # MIT
 

tox.ini

@@ -14,8 +14,7 @@ whitelist_externals =
 commands =
     python -m paunch --version
     paunch --version
-    bash -c 'if [ ! -d ./.testrepository ] ; then testr init ; fi'
-    testr run {posargs}
+    stestr run {posargs}
 
 [testenv:pep8]
 basepython = python3
@@ -27,7 +26,16 @@ commands = {posargs}
 
 [testenv:cover]
 basepython = python3
-commands = python setup.py test --coverage --testr-args='{posargs}'
+setenv =
+  PYTHON=coverage run --source paunch --parallel-mode
+  HOME={envdir}
+commands =
+  coverage erase
+  stestr run --color {posargs}
+  coverage combine
+  coverage html -d cover
+  coverage xml -o cover/coverage.xml
+  coverage report
 
 [testenv:docs]
 basepython = python3