Add an OpenStack test

This is a temporary test to experiment with how we might use Zuulv3
features to organize testing for OpenStack.

It doesn't do anything interesting yet.

Change-Id: I852feeff7f28be3dc408c96df06cb8f919b13c75

tests/fixtures/config/openstack/git/openstack_keystone/README

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+test

tests/fixtures/config/openstack/git/openstack_nova/README

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+test

tests/fixtures/config/openstack/git/project-config/zuul.yaml

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+# Pipeline definitions
+
+- pipeline:
+    name: check
+    manager: independent
+    success-message: Build succeeded (check).
+    source:
+      gerrit
+    trigger:
+      gerrit:
+        - event: patchset-created
+    success:
+      gerrit:
+        verified: 1
+    failure:
+      gerrit:
+        verified: -1
+
+- pipeline:
+    name: gate
+    manager: dependent
+    success-message: Build succeeded (gate).
+    source:
+      gerrit
+    trigger:
+      gerrit:
+        - event: comment-added
+          approval:
+            - approved: 1
+    success:
+      gerrit:
+        verified: 2
+        submit: true
+    failure:
+      gerrit:
+        verified: -2
+    start:
+      gerrit:
+        verified: 0
+    precedence: high
+
+# Job definitions
+
+- job:
+    name: python27
+
+- job:
+    name: python35
+
+- project-template:
+    name: python-jobs
+    gate:
+      jobs:
+        - python27
+        - python35
+
+# Project definitions
+
+- project:
+    name: openstack/nova
+    templates:
+      - python-jobs
+    gate:
+      queue: integrated
+
+- project:
+    name: openstack/keystone
+    templates:
+      - python-jobs
+    gate:
+      queue: integrated

tests/fixtures/config/openstack/main.yaml

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+- tenant:
+    name: openstack
+    source:
+      gerrit:
+        config-repos:
+          - project-config

tests/test_openstack.py

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+#!/usr/bin/env python
+
+# Copyright 2012 Hewlett-Packard Development Company, L.P.
+#
+# 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.
+
+import logging
+
+from tests.base import AnsibleZuulTestCase
+
+logging.basicConfig(level=logging.DEBUG,
+                    format='%(asctime)s %(name)-32s '
+                    '%(levelname)-8s %(message)s')
+
+
+class TestOpenStack(AnsibleZuulTestCase):
+    # A temporary class to experiment with how openstack can use
+    # Zuulv3
+
+    tenant_config_file = 'config/openstack/main.yaml'
+
+    def test_openstack(self):
+        A = self.fake_gerrit.addFakeChange('openstack/nova', 'master', 'A')
+        A.addApproval('code-review', 2)
+        self.fake_gerrit.addEvent(A.addApproval('approved', 1))
+        self.waitUntilSettled()
+        self.assertEqual(self.getJobFromHistory('python27').result,
+                         'SUCCESS')
+        self.assertEqual(self.getJobFromHistory('python35').result,
+                         'SUCCESS')
+        self.assertEqual(A.data['status'], 'MERGED')
+        self.assertEqual(A.reported, 2,
+                         "A should report start and success")