Migrate from testr to stest and adjust Python supported versions

Author: alvarolopez

.stestr.conf

@@ -0,0 +1,3 @@
+[DEFAULT]
+test_path=./deepaas/tests/
+top_dir=./

.testr.conf

@@ -17,7 +17,7 @@ classifier =
     Programming Language :: Python :: 2
     Programming Language :: Python :: 2.7
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.4
+    Programming Language :: Python :: 3.5
     Programming Language :: Python :: 3.6
 
 [files]

setup.cfg

@@ -5,11 +5,14 @@ hacking<0.10,>=0.9.2
 
 bandit>=1.1.0 # Apache-2.0
 
-coverage>=3.6
+# Remove once we rely on coverage 4.3+
+#
+# https://bitbucket.org/ned/coveragepy/issues/519/
+coverage!=4.4,>=4.0 # Apache-2.0
 
 fixtures>=1.3.1
 python-subunit>=0.0.18
-testrepository>=0.0.18
+stestr>=1.0.0 # Apache-2.0
 testtools>=1.4.0
 
 mock>=1.2

test-requirements.txt

@@ -1,24 +1,68 @@
 [tox]
 minversion = 1.6
-envlist = py36,py34,py27,pep8
+envlist = py{35,36,27},pep8
 skipsdist = True
 
 [testenv]
 usedevelop = True
+basepython = python3
+whitelist_externals =
+  find
 install_command = pip install -U {opts} {packages}
 setenv =
    VIRTUAL_ENV={envdir}
+   LC_ALL=en_US.utf-8
+   OS_STDOUT_CAPTURE=1
+   OS_STDERR_CAPTURE=1
+   OS_TEST_TIMEOUT=160
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
-commands = python setup.py testr --slowest --testr-args='{posargs}'
+commands =
+    find . -type f -name "*.pyc" -delete
 
 [testenv:venv]
 commands = {posargs}
 
 [testenv:cover]
-commands = python setup.py testr --coverage --testr-args='{posargs}'
+# TODO(stephenfin): Remove the PYTHON hack below in favour of a [coverage]
+# section once we rely on coverage 4.3+
+#
+# https://bitbucket.org/ned/coveragepy/issues/519/
+envdir = {toxworkdir}/shared
+setenv =
+  {[testenv]setenv}
+  PYTHON=coverage run --source deepaas --parallel-mode
+commands =
+  {[testenv]commands}
+  coverage erase
+  stestr run {posargs}
+  coverage combine
+  coverage html -d cover
+  coverage xml -o cover/coverage.xml
+  coverage report
+
+[testenv:py27]
+# TODO(efried): Remove this once https://github.com/tox-dev/tox/issues/425 is fixed.
+basepython = python2.7
+commands =
+  {[testenv]commands}
+  stestr run {posargs} 
+
+[testenv:py35]
+# TODO(efried): Remove this once https://github.com/tox-dev/tox/issues/425 is fixed.
+basepython = python3.5
+commands =
+  {[testenv]commands}
+  stestr run {posargs}
+
+[testenv:py36]
+# TODO(efried): Remove this once https://github.com/tox-dev/tox/issues/425 is fixed.
+basepython = python3.6
+commands =
+  {[testenv:py35]commands}
 
 [testenv:pep8]
+envdir = {toxworkdir}/shared
 commands =
   flake8
   # Run security linter
@@ -27,8 +71,7 @@ commands =
   bandit -r deepaas -x tests -s B110,B410
 
 [testenv:bandit]
-# NOTE(browne): This is required for the integration test job of the bandit
-# project. Please do not remove.
+envdir = {toxworkdir}/shared
 commands = bandit -r deepaas -x tests -s B110,B410
 
 [flake8]