Switch to stestr

According to Openstack summit session [1],
stestr is maintained project to which all Openstack projects should migrate.
Let's switch to stestr as other projects have already moved to it.

[1] https://etherpad.openstack.org/p/YVR-python-pti

Change-Id: I6267a0287dd9ae1296fdc775bb3848be9b52978c

.gitignore

@@ -26,8 +26,7 @@ pip-log.txt
 cover
 cover-master
 .tox
-nosetests.xml
-.testrepository
+.stestr/
 .venv
 
 # Functional test

.stestr.conf

@@ -0,0 +1,4 @@
+[DEFAULT]
+test_path=${OS_TEST_PATH:-./magnum/tests/unit}
+top_dir=./
+

lower-constraints.txt

@@ -153,6 +153,7 @@ taskflow==2.16.0
 Tempita==0.5.2
 tenacity==4.9.0
 testrepository==0.0.18
+stestr==2.0.0
 testresources==2.0.1
 testscenarios==0.4
 testtools==2.2.0

test-requirements.txt

@@ -19,5 +19,6 @@ python-subunit>=1.0.0 # Apache-2.0/BSD
 pytz>=2013.6 # MIT
 sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
 testrepository>=0.0.18 # Apache-2.0/BSD
+stestr>=2.0.0 # Apache-2.0
 testscenarios>=0.4 # Apache-2.0/BSD
 testtools>=2.2.0 # MIT

tools/pretty_tox.sh

@@ -1,16 +0,0 @@
-#!/usr/bin/env bash
-
-set -o pipefail
-
-TESTRARGS=$1
-
-# --until-failure is not compatible with --subunit see:
-#
-# https://bugs.launchpad.net/testrepository/+bug/1411804
-#
-# this work around exists until that is addressed
-if [[ "$TESTARGS" =~ "until-failure" ]]; then
-    python setup.py testr --slowest --testr-args="$TESTRARGS"
-else
-    python setup.py testr --slowest --testr-args="--subunit $TESTRARGS" | subunit-trace -f
-fi

tox.ini

@@ -19,7 +19,7 @@ passenv = TEMPEST_* OS_TEST_*
 commands =
   find . -type f -name "*.py[c|o]" -delete
   rm -f .testrepository/times.dbm
-  bash tools/pretty_tox.sh '{posargs}'
+  stestr run {posargs}
 
 [testenv:debug]
 basepython = python3
@@ -42,7 +42,7 @@ deps =
   {[testenv]deps}
 commands =
   find . -type f -name "*.py[c|o]" -delete
-  bash tools/pretty_tox.sh '{posargs}'
+  stestr run {posargs}
 
 [testenv:functional-k8s]
 sitepackages = True
@@ -53,7 +53,7 @@ deps =
   {[testenv]deps}
 commands =
   find . -type f -name "*.py[c|o]" -delete
-  bash tools/pretty_tox.sh '{posargs}'
+  stestr run {posargs}
 
 [testenv:functional-k8s-ironic]
 sitepackages = True
@@ -64,7 +64,7 @@ deps =
   {[testenv]deps}
 commands =
   find . -type f -name "*.py[c|o]" -delete
-  bash tools/pretty_tox.sh '{posargs}'
+  stestr run {posargs}
 
 [testenv:functional-k8s-coreos]
 sitepackages = True
@@ -75,7 +75,7 @@ deps =
   {[testenv]deps}
 commands =
   find . -type f -name "*.py[c|o]" -delete
-  bash tools/pretty_tox.sh '{posargs}'
+  stestr run {posargs}
 
 [testenv:functional-swarm]
 sitepackages = True
@@ -86,7 +86,7 @@ deps =
   {[testenv]deps}
 commands =
   find . -type f -name "*.py[c|o]" -delete
-  bash tools/pretty_tox.sh '{posargs}'
+  stestr run {posargs}
 
 [testenv:functional-swarm-mode]
 sitepackages = True
@@ -97,7 +97,7 @@ deps =
   {[testenv]deps}
 commands =
   find . -type f -name "*.py[c|o]" -delete
-  bash tools/pretty_tox.sh '{posargs}'
+  stestr run {posargs}
 
 [testenv:functional-mesos]
 sitepackages = True
@@ -108,7 +108,7 @@ deps =
   {[testenv]deps}
 commands =
   find . -type f -name "*.py[c|o]" -delete
-  bash tools/pretty_tox.sh '{posargs}'
+  stestr run {posargs}
 
 [testenv:pep8]
 basepython = python3