Migrate from testr to stestr

* Replace .testr.conf by .stestr.conf for migration and update
  .gitignore and test-requirements.txt file accordingly
* Use py3 as the default runtime for tox
* Add a new job, openstack-cover-jobs, to run the coverage in Zuul
* Setuptools v54.1.0 introduces a warning that the use of dash-separated
  options in 'setup.cfg' will not be supported in a future version [1].
  Get ahead of the issue by replacing the dashes with underscores.Without
  this, we see 'UserWarning' messages.

[1] https://github.com/pypa/setuptools/commit/a2e9ae4cb

Change-Id: I792399651aeeda2e90689d698afdf4b711d7c99c

.gitignore

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

.stestr.conf

@@ -0,0 +1,3 @@
+[DEFAULT]
+test_path=./murano-tempest-plugin/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

.zuul.yaml

@@ -2,6 +2,7 @@
     templates:
       - check-requirements
       - tempest-plugin-jobs
+      - openstack-cover-jobs
     check:
       jobs:
         - murano-tempest-api:

setup.cfg

@@ -1,12 +1,12 @@
 [metadata]
 name = murano-tempest-plugin
 summary = Tempest plugin for the murano project.
-description-file =
+description_file =
     README.rst
 author = OpenStack
-author-email = openstack-discuss@lists.openstack.org
-home-page = https://docs.openstack.org/murano/latest/
-python-requires = >=3.6
+author_email = openstack-discuss@lists.openstack.org
+home_page = https://docs.openstack.org/murano/latest/
+python_requires = >=3.6
 classifier =
     Environment :: OpenStack
     Intended Audience :: Information Technology

test-requirements.txt

@@ -7,5 +7,5 @@ hacking>=3.0.1,<3.1.0;python_version>='3.5' # 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>=2.0.0 # Apache-2.0/BSD
 testtools>=2.2.0 # MIT

tox.ini

@@ -1,6 +1,6 @@
 [tox]
-minversion = 3.1.1
-envlist = py36,pypy,pep8
+minversion = 3.18.0
+envlist = py3,pypy,pep8
 skipsdist = True
 ignore_basepython_conflict = True
 
@@ -12,7 +12,7 @@ setenv =
    PYTHONWARNINGS=default::DeprecationWarning
 deps = -r{toxinidir}/test-requirements.txt
        -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
-commands = python setup.py test --slowest --testr-args='{posargs}'
+commands = stestr run --slowest {posargs}
 
 [testenv:pep8]
 commands = flake8 {posargs}
@@ -21,7 +21,18 @@ commands = flake8 {posargs}
 commands = {posargs}
 
 [testenv:cover]
-commands = python setup.py test --coverage --testr-args='{posargs}'
+allowlist_externals = find
+setenv =
+  {[testenv]setenv}
+  PYTHON=coverage run --source murano-tempest-plugin --parallel-mode
+commands =
+  coverage erase
+  find . -type f -name "*.pyc" -delete
+  stestr run {posargs}
+  coverage combine
+  coverage html -d cover
+  coverage xml -o cover/coverage.xml
+  coverage report
 
 [testenv:docs]
 deps = -r{toxinidir}/doc/requirements.txt