Switch to stestr

Use stestr for tests.

Also clean tox.ini and add check for flake8 H106:
Don't put vim configuration in source files.

Change-Id: Ia76961a091688372c6df363d5e1dcb29ff0f39bf

.gitignore

@@ -26,6 +26,7 @@ pip-log.txt
 nosetests.xml
 .testrepository
 .venv
+.stestr
 
 # Translations
 *.mo

.stestr.conf

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

lower-constraints.txt

@@ -66,6 +66,7 @@ snowballstemmer==1.2.1
 Sphinx==1.6.5
 sphinxcontrib-websupport==1.0.1
 sphinxcontrib-svg2pdfconverter==0.1.0
+stestr==2.0.0
 stevedore==1.28.0
 testrepository==0.0.18
 testscenarios==0.4

test-requirements.txt

@@ -7,6 +7,7 @@ hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 coverage!=4.4,>=4.0 # Apache-2.0
 doc8>=0.6.0 # Apache-2.0
 oslotest>=3.2.0 # Apache-2.0
+stestr>=2.0.0 # Apache-2.0
 testrepository>=0.0.18 # Apache-2.0/BSD
 testscenarios>=0.4 # Apache-2.0/BSD
 testtools>=2.2.0 # MIT

tox.ini

@@ -5,25 +5,25 @@ skipsdist = True
 ignore_basepython_conflict=true
 
 [testenv]
-usedevelop = True
-install_command = pip install -U -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master} {opts} {packages}
 basepython = python3
+usedevelop = True
+install_command = pip install -U {opts} {packages}
 setenv =
-   VIRTUAL_ENV={envdir}
-   PYTHONWARNINGS=default::DeprecationWarning
-deps = -r{toxinidir}/requirements.txt
-       -r{toxinidir}/test-requirements.txt
-commands = python setup.py test --slowest --testr-args='{posargs}'
+    VIRTUAL_ENV={envdir}
+    PYTHONWARNINGS=default::DeprecationWarning
+deps =
+    -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+    -r{toxinidir}/requirements.txt
+    -r{toxinidir}/test-requirements.txt
+commands = stestr run --slowest {posargs}
 passenv = http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY
 
 [testenv:pep8]
-commands = flake8
-           doc8 doc/source releasenotes/source README.rst CONTRIBUTING.rst MISSION.rst HACKING.rst
+commands =
+    flake8 {posargs}
+    doc8 doc/source releasenotes/source README.rst CONTRIBUTING.rst MISSION.rst HACKING.rst
 
 [testenv:venv]
-deps =
-  -r{toxinidir}/test-requirements.txt
-  -r{toxinidir}/doc/requirements.txt
 commands = {posargs}
 
 [testenv:cover]
@@ -39,8 +39,9 @@ commands = sphinx-build -W -b html doc/source doc/build/html
 [testenv:pdf-docs]
 whitelist_externals = make
 deps = {[testenv:docs]deps}
-commands = sphinx-build -W -b latex doc/source doc/build/pdf
-           make -C doc/build/pdf
+commands =
+    sphinx-build -W -b latex doc/source doc/build/pdf
+    make -C doc/build/pdf
 
 [testenv:debug]
 commands = oslo_debug_helper -t bifrost/tests {posargs}
@@ -49,7 +50,8 @@ commands = oslo_debug_helper -t bifrost/tests {posargs}
 deps =
   -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
   -r{toxinidir}/doc/requirements.txt
-commands = sphinx-build -a -E -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
+commands =
+    sphinx-build -a -E -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
 
 [testenv:debug-py36]
 basepython = python3.6
@@ -58,6 +60,8 @@ commands = oslo_debug_helper -t bifrost/tests {posargs}
 [flake8]
 show-source = True
 ignore = F403,H102,H303
+# [H106] Don't put vim configuration in source files.
+enable-extensions=H106
 exclude=.venv,.git,.tox,dist,doc,*lib/python*,*egg,build,os_ironic.py,os_ironic_node.py,os_ironic_inspect.py,os_keystone_service.py
 
 [testenv:lower-constraints]