Validate hw_video_type image property

This patch tests the hw_video_type image
property with values virtio and none.

Change-Id: Iea5c2a73674a97ad212cfcf5f8dea9185f8bda27

.zuul.yaml

@@ -46,6 +46,7 @@
         tox_envlist: all
         tempest_concurrency: 1
         tempest_test_regex: ^whitebox_tempest_plugin\.
+        tempest_black_regex: "create_none_instance|virtio_to_none|none_to_virtio"
         devstack_plugins:
             whitebox-tempest-plugin: https://opendev.org/x/whitebox-tempest-plugin.git
         devstack_localrc:

whitebox_tempest_plugin/api/compute/test_hw_video_type.py

@@ -0,0 +1,60 @@
+# Copyright 2020 Red Hat
+# All Rights Reserved.
+#
+#    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 tempest.common import waiters
+
+from whitebox_tempest_plugin.api.compute import base
+
+
+class HwVideoModelTest(base.BaseWhiteboxComputeTest):
+    """Tests the support of different hardware video model type
+     virtio and none that can be set through image
+    meta data property flag "hw_video_model".
+    """
+
+    def setUp(self):
+        super(HwVideoModelTest, self).setUp()
+
+        self.virtio_image_id = self.copy_default_image(hw_video_model='virtio')
+        self.none_image_id = self.copy_default_image(hw_video_model='none')
+
+    def _assert_hw_video_type(self, server, hw_video_type):
+        root = self.get_server_xml(server['id'])
+        hw_video = root.find('./devices/video/model')
+        self.assertEqual(hw_video_type, hw_video.get('type'))
+
+    def test_create_virtio_instance(self):
+        server = self.create_test_server(image_id=self.virtio_image_id)
+        self._assert_hw_video_type(server, 'virtio')
+
+    def test_create_none_instance(self):
+        server = self.create_test_server(image_id=self.none_image_id)
+        self._assert_hw_video_type(server, 'none')
+
+    def test_rebuild_virtio_to_none(self):
+        server = self.create_test_server(image_id=self.virtio_image_id)
+        self._assert_hw_video_type(server, 'virtio')
+        self.servers_client.rebuild_server(server['id'], self.none_image_id)
+        waiters.wait_for_server_status(self.servers_client, server['id'],
+                                       'ACTIVE')
+        self._assert_hw_video_type(server, 'none')
+
+    def test_rebuild_none_to_virtio(self):
+        server = self.create_test_server(image_id=self.virtio_image_id)
+        self._assert_hw_video_type(server, 'virtio')
+        self.servers_client.rebuild_server(server['id'], self.none_image_id)
+        waiters.wait_for_server_status(self.servers_client, server['id'],
+                                       'ACTIVE')
+        self._assert_hw_video_type(server, 'none')