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
* Use tox version 3.18.0 for using allowlist_externals

Signed-off-by: JyotiJauhari <jyotijauhari222@gmail.com>
Change-Id: Ifd6fc7b0c22919b91fff9eb136de8c023bce3849

.gitignore

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

.stestr.conf

@@ -0,0 +1,3 @@
+[DEFAULT]
+test_path=./zaqar_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

test-requirements.txt

@@ -7,5 +7,5 @@ hacking>=3.1.0,<3.2.0 # 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
 testtools>=1.4.0 # MIT

tox.ini

@@ -1,6 +1,6 @@
 [tox]
-minversion = 3.1.1
-envlist = py35,pypy,pep8
+minversion = 3.18.0
+envlist = py3,pypy,pep8
 skipsdist = True
 ignore_basepython_conflict = True
 
@@ -14,7 +14,7 @@ deps =
    -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
    -r{toxinidir}/requirements.txt
    -r{toxinidir}/test-requirements.txt
-commands = python setup.py test --slowest --testr-args='{posargs}'
+commands = stestr run --slowest {posargs}
 
 [testenv:pep8]
 commands = flake8 {posargs}
@@ -23,7 +23,17 @@ 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 zaqar_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 = -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}