Use setstr to execute unittest test

The stestr[1] is parallel Python test runner designed to execute unittest test suites using multiple processes.
Test cases can be executed faster.

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

Change-Id: Ic0b210685535f94a70a175385afdd9f399f4d690

.gitignore

@@ -21,6 +21,7 @@ coverage.xml
 subunit.log
 AUTHORS
 ChangeLog
+.stestr/
 
 # Django files that get created during the test runs
 .secret_key_store

.stestr.conf

@@ -0,0 +1,4 @@
+[DEFAULT]
+test_path=${OS_TEST_PATH:-./freezer_api/tests/unit}
+top_dir=./
+group_regex=([^\.]+\.)+

.testr.conf

@@ -1,9 +0,0 @@
-[DEFAULT]
-test_command=OS_STDOUT_CAPTURE=${OS_STDOUT_CAPTURE:-1} \
-             OS_STDERR_CAPTURE=${OS_STDERR_CAPTURE:-1} \
-             OS_LOG_CAPTURE=${OS_LOG_CAPTURE:-1} \
-             ${PYTHON:-python} -m subunit.run discover -s ${OS_TEST_PATH:-./freezer_api/tests/unit} -t . $LISTOPT $IDOPTION
-
-test_id_option=--load-list $IDFILE
-test_list_option=--list
-group_regex=([^\.]+\.)+

lower-constraints.txt

@@ -3,7 +3,7 @@ alembic==0.9.8
 Babel==2.5.3
 certifi==2018.1.18
 chardet==3.0.4
-coverage==4.0
+coverage==4.5.1
 debtcollector==1.19.0
 decorator==4.2.1
 docutils==0.14
@@ -68,11 +68,12 @@ 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
 Tempita==0.5.2
 testrepository==0.0.18
-testresources==2.0.1
 testscenarios==0.5.0
+testresources==2.0.1
 testtools==2.2.0
 traceback2==1.4.0
 unittest2==1.1.0

test-requirements.txt

@@ -5,12 +5,15 @@
 # hacking already pins flake8
 hacking>=3.0.1,<=3.1.0 # Apache-2.0
 pylint==2.3.1 # GPLv2
-coverage!=4.4,>=4.0 # Apache-2.0
+coverage>=4.5.1 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD
 oslotest>=3.3.0 # Apache-2.0
 sphinx>=1.8.0,!=2.1.0 # BSD
 testrepository>=0.0.18 # Apache-2.0/BSD
+stestr>=2.0.0 # Apache-2.0
 testtools>=2.2.0 # MIT
+testresources>=2.0.1
+testscenarios>=0.5.0
 os-api-ref>=1.4.0 # Apache-2.0
 reno>=2.5.0 # Apache-2.0
 openstackdocstheme>=1.31.2 # Apache-2.0

tox.ini

@@ -7,14 +7,28 @@ skipsdist = True
 basepython = python3
 usedevelop = True
 deps =
+    -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
     -r{toxinidir}/requirements.txt
     -r{toxinidir}/test-requirements.txt
 
+
 passenv =
     http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY
 
-install_command = pip install -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master} {opts} {packages}
-setenv = VIRTUAL_ENV={envdir}
+install_command = pip install {opts} {packages}
+setenv =
+    VIRTUAL_ENV={envdir}
+    OS_TEST_PATH = ./freezer_api/tests/unit
+    PYTHON=coverage run --source freezer_api --parallel-mode
+commands =
+    find . -type f -name "*.py[c|o]" -delete
+    stestr run {posargs}
+    coverage combine
+    coverage html -d cover
+    coverage xml -o cover/coverage.xml
+    coverage report -m
+    rm -f .coverage
+    rm -rf .testrepository
 
 whitelist_externals =
     find
@@ -22,41 +36,17 @@ whitelist_externals =
     rm
 
 python_files = test_*.py
-norecursedirs  = .tox .venv specs
+norecursedirs  = .tox .venv 
 
 [testenv:py36]
 basepython = python3.6
-setenv = OS_PATH_TEST = ./freezer_api/tests/unit
-commands =
-    find . -type f -name "*.py[c|o]" -delete
-    rm -rf .testrepository
-    python setup.py test --coverage --coverage-package-name freezer_api --testr-args={posargs}
-    coverage report -m
-    rm -f .coverage
-    rm -rf .testrepository
 
 [testenv:py37]
 basepython = python3.7
-setenv = OS_PATH_TEST = ./freezer_api/tests/unit
-commands =
-    find . -type f -name "*.py[c|o]" -delete
-    rm -rf .testrepository
-    python setup.py test --coverage --coverage-package-name freezer_api --testr-args={posargs}
-    coverage report -m
-    rm -f .coverage
-    rm -rf .testrepository
 
 [testenv:venv]
 commands = {posargs}
 
-[testenv:cover]
-commands =
-    find . -type f -name "*.py[c|o]" -delete
-    python setup.py test --coverage --coverage-package-name freezer_api --testr-args={posargs}
-    coverage report -m
-    rm -f .coverage
-    rm -rf .testrepository
-
 [testenv:pylint]
 commands = pylint --rcfile .pylintrc freezer_api