tests: add a hook for functional testing in the gate

Follow the python-novaclient approach of running functional tests
against a deployed Devstack in the gate.

Blueprint: placement-osc-plugin

Depends-On: I7c5a5c10288b356302bb3027837d4ed4f0fbad8c
Change-Id: I8ca156440cb51d03cb8e05185c028573dc6f9b4b

osc_placement/tests/functional/hooks/post_test_hook.sh

@@ -0,0 +1,47 @@
+#!/bin/bash -xe
+
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+# This script is executed inside post_test_hook function in devstack gate.
+
+function generate_testr_results {
+    if [ -f .testrepository/0 ]; then
+        sudo .tox/functional/bin/testr last --subunit > $WORKSPACE/testrepository.subunit
+        sudo mv $WORKSPACE/testrepository.subunit $BASE/logs/testrepository.subunit
+        sudo /usr/os-testr-env/bin/subunit2html $BASE/logs/testrepository.subunit $BASE/logs/testr_results.html
+        sudo gzip -9 $BASE/logs/testrepository.subunit
+        sudo gzip -9 $BASE/logs/testr_results.html
+        sudo chown jenkins:jenkins $BASE/logs/testrepository.subunit.gz $BASE/logs/testr_results.html.gz
+        sudo chmod a+r $BASE/logs/testrepository.subunit.gz $BASE/logs/testr_results.html.gz
+    fi
+}
+
+export OSCPLACEMENT_DIR="$BASE/new/osc-placement"
+
+sudo chown -R jenkins:stack $OSCPLACEMENT_DIR
+
+# Go to the osc-placement dir
+cd $OSCPLACEMENT_DIR
+
+# Run tests
+echo "Running osc-placement functional test suite"
+set +e
+# Preserve env for OS_ credentials
+source $BASE/new/devstack/openrc admin admin
+sudo -E -H -u jenkins tox -e ${TOX_ENV:-functional}
+EXIT_CODE=$?
+set -e
+
+# Collect and parse result
+generate_testr_results
+exit $EXIT_CODE

tox.ini

@@ -18,6 +18,8 @@ setenv =
    VIRTUAL_ENV={envdir}
    PYTHONWARNINGS=default::DeprecationWarning
    OS_TEST_PATH=./osc_placement/tests/functional
+# NOTE(rpodolyaka): allow passing of keystone credentials via env variables
+passenv = OS_*
 
 [testenv:pep8]
 commands = flake8 {posargs}