Switch to stestr

We don't really have unit tests in the repository and any py3x venv
would not really be useful (the tests are executed through tempest),
but let's remove the old dependency anyway and depend on stestr
like all the other OpenStack projects.

Change-Id: I52d06f1c1e141cb455fb7a823a27be532afb4c16

.gitignore

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

.stestr.conf

@@ -0,0 +1,3 @@
+[DEFAULT]
+test_path=${OS_TEST_PATH:-./cinder_tempest_plugin}
+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

@@ -7,5 +7,5 @@ hacking>=3.0.1,<3.1 # Apache-2.0
 coverage!=4.4,>=4.0 # Apache-2.0
 python-subunit>=1.0.0 # Apache-2.0/BSD
 oslotest>=3.2.0 # Apache-2.0
-testrepository>=0.0.18 # Apache-2.0/BSD
+stestr>=1.0.0 # Apache-2.0
 testtools>=2.2.0 # MIT

tox.ini

@@ -12,9 +12,12 @@ usedevelop = True
 setenv =
    VIRTUAL_ENV={envdir}
    PYTHONWARNINGS=default::DeprecationWarning
+   OS_LOG_CAPTURE={env:OS_LOG_CAPTURE:true}
+   OS_STDOUT_CAPTURE={env:OS_STDOUT_CAPTURE:true}
+   OS_STDERR_CAPTURE={env:OS_STDERR_CAPTURE:true}
 deps = -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
        -r{toxinidir}/test-requirements.txt
-commands = python setup.py test --slowest --testr-args='{posargs}'
+commands = stestr run --slowest {posargs}
 
 [testenv:pep8]
 commands = flake8 {posargs}