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: I37f96444426f006ff5d6491106b168a81a7c09ea

.gitignore

@@ -31,8 +31,7 @@ pip-log.txt
 # Unit test / coverage reports
 .coverage
 .tox
-nosetests.xml
-.testrepository
+.stestr/
 .venv
 
 # Translations

.stestr.conf

@@ -0,0 +1,3 @@
+[DEFAULT]
+test_path=./congress/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 ./ ./congress/tests $LISTOPT $IDOPTION
-test_id_option=--load-list $IDFILE
-test_list_option=--list

lower-constraints.txt

@@ -125,11 +125,11 @@ sqlalchemy-migrate==0.11.0
 SQLAlchemy==1.2.5
 sqlparse==0.2.4
 statsd==3.2.2
+stestr==2.0.0
 stevedore==1.28.0
 suds-jurko==0.6
 Tempita==0.5.2
 tenacity==4.4.0
-testrepository==0.0.18
 testresources==2.0.1
 testscenarios==0.4
 testtools==2.2.0

test-requirements.txt

@@ -10,6 +10,6 @@ mox3>=0.20.0 # Apache-2.0
 oslotest>=3.2.0 # Apache-2.0
 requests-mock>=1.2.0 # Apache-2.0
 python-subunit>=1.0.0 # Apache-2.0/BSD
-testrepository>=0.0.18 # Apache-2.0/BSD
+stestr>=2.0.0  # Apache-2.0
 testscenarios>=0.4 # Apache-2.0/BSD
 testtools>=2.2.0 # MIT

tox.ini

@@ -18,7 +18,7 @@ deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 commands =
  find . -type f -name "*.py[c|o]" -delete
- python setup.py testr --slowest --testr-args='{posargs} --concurrency=1'
+ stestr run --slowest --concurrency=1 {posargs}
 
 [testenv:pep8]
 basepython = python3
@@ -33,10 +33,15 @@ commands = {posargs}
 
 [testenv:cover]
 basepython = python3
+setenv =
+    PYTHON=coverage run --source congress --parallel-mode
 commands = 
   coverage erase
   find . -type f -name "*.pyc" -delete
-  python setup.py testr --coverage --testr-args='^(?!congress\.tests\.haht\.test_congress_haht.*){posargs}'
+  stestr run '^(?!congress\.tests\.haht\.test_congress_haht.*){posargs}'
+  coverage combine
+  coverage html -d cover
+  coverage xml -o cover/coverage.xml
   coverage report
 
 [testenv:debug]
@@ -51,8 +56,8 @@ setenv =
    LANG=en_US.UTF-8
    LANGUAGE=en_US
    LC_ALL=en_US.utf-8
-commands = python setup.py testr --testr-args='test_benchmark {posargs} --concurrency=1'
-           testr slowest --all
+commands = stestr run --concurrency=1 'test_benchmark {posargs}'
+           stestr slowest --all
 
 [flake8]
 show-source = True