Add new test script for parallel builds

This adds a new test script for the new python based build script. A new
tox target has been created to execute it for usage in the gate.
Eventually, the other build script stuff can be deleted, but that won't
be done until full functionality exists in the new build.py.

Change-Id: Id9dd19926b1b9d875dcb069fd13d6450318374c8
Paritally-Implements: blueprint build-script

test-requirements.txt

@@ -14,3 +14,4 @@ python-swiftclient>=2.2.0
 testrepository>=0.0.18
 testscenarios>=0.4
 testtools>=0.9.36,!=1.2.0
+jinja2

tests/test_build.py

+#    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.
+
+
+from mock import patch
+from os import path
+from oslo_log import fixture as log_fixture
+from oslo_log import log as logging
+from oslotest import base
+
+import sys
+sys.path.append(path.abspath(path.join(path.dirname(__file__), '../tools')))
+from tools import build
+
+LOG = logging.getLogger(__name__)
+
+
+class BuildTest(base.BaseTestCase):
+
+    def setUp(self):
+        super(BuildTest, self).setUp()
+        self.useFixture(log_fixture.SetLogLevel([__name__],
+                                                logging.logging.INFO))
+
+    def test_build(self):
+        build_args = ["--debug"]
+        with patch.object(sys, 'argv', build_args):
+            bad_results, good_results = build.main()
+
+        # these are images that are known to not build properly
+        excluded_images = ["barbican",
+                           "gnocchi-api",
+                           "gnocchi-statsd"]
+
+        failures = 0
+        for image, result in bad_results.iteritems():
+            if image in excluded_images:
+                if result is 'error':
+                    continue
+                failures = failures + 1
+                LOG.warning(">>> Expected image '%s' to fail, please update"
+                            " the excluded_images in source file above if the"
+                            " image build has been fixed." % image)
+            else:
+                if result is not 'error':
+                    continue
+                failures = failures + 1
+                LOG.critical(">>> Expected image '%s' to succeed!" % image)
+
+        self.assertEqual(failures, 0, "%d failure(s) occurred" % failures)

tox.ini

@@ -42,6 +42,15 @@ commands =
    sudo -g docker testr run ^(test_images).*
    bash -c "if [ -f buildconf.bak ]; then mv buildconf.bak .buildconf; fi"
 
+[testenv:images-centos-rdo]
+whitelist_externals = find
+                      bash
+                      sudo
+commands =
+   find . -type f -name "*.pyc" -delete
+   bash -c "if [ ! -d .testrepository ]; then testr init; fi"
+   sudo -g docker testr run ^(test_build).*
+
 [testenv:images-centos-src]
 whitelist_externals = find
                       bash