Switch to using stestr

stestr is a fork of testrepository, designed specifically to concentrate
on being a dedicated test runner. [1] The testrepository project is
basically not active anymore and has several long standing bugs and
useablility issues. stestr is still actively maintained and fixes a
large number of those issues with testrepository. The best part is that
stestr supports using subunit2sql as a repository backend.

[1] https://github.com/mtreinish/stestr

Change-Id: I39f5db8f77de027c18917215c761dca69d8cbea0

.stestr.conf

@@ -0,0 +1,3 @@
+[DEFAULT]
+test_path=./subunit2sql/tests
+top_dir=./

.testr.conf

@@ -1,8 +0,0 @@
-[DEFAULT]
-test_command=OS_STDOUT_CAPTURE=${OS_STDOUT_CAPTURE:-1} \
-             OS_STDERR_CAPTURE=${OS_STDERR_CAPTURE:-1} \
-             OS_TEST_TIMEOUT=${OS_TEST_TIMEOUT:-500} \
-             OS_TEST_LOCK_PATH=${OS_TEST_LOCK_PATH:-${TMPDIR:-'/tmp'}} \
-             ${PYTHON:-python} -m subunit.run discover -t ./ ./subunit2sql/tests $LISTOPT $IDOPTION
-test_id_option=--load-list $IDFILE
-test_list_option=--list

test-requirements.txt

@@ -4,7 +4,7 @@ fixtures>=0.3.14
 mock>=1.0
 sphinx>=1.6.2 # BSD
 testscenarios>=0.4
-testrepository>=0.0.18
+stestr>=1.0.0
 testtools>=0.9.34
 oslosphinx
 PyMySql

tox.ini

@@ -6,13 +6,18 @@ skipsdist = True
 [testenv]
 usedevelop = True
 install_command = pip install -U --force-reinstall {opts} {packages}
-setenv = VIRTUAL_ENV={envdir}
+setenv =
+    VIRTUAL_ENV={envdir}
+    OS_STDOUT_CAPTURE=1
+    OS_STDERR_CAPTURE=1
+    OS_TEST_TIMEOUT=500
 whitelist_externals = find
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 commands =
     find . -type f -name "*.pyc" -delete
-    ostestr {posargs}
+    stestr run {posargs}
+    stestr slowest
 
 [testenv:pep8]
 sitepackages = False
@@ -20,9 +25,13 @@ commands =
   flake8 {posargs}
 
 [testenv:cover]
-setenv = VIRTUAL_ENV={envdir}
+setenv =
+    VIRTUAL_ENV={envdir}
+    PYTHON=coverage run --source subunit2sql --parallel-mode
 commands =
-  python setup.py testr --coverage --testr-args='{posargs}'
+  stestr run {posargs}
+  coverage combine
+  coverage html -d cover
 
 [testenv:venv]
 commands = {posargs}