Add command to show all service versions

Knowing what services and what versions of those services exist on a
cloud isn't always a spectacular experience. Add a command that will use
get_all_version_data from keystoneauth to produce a report of the
available services and the version info for each service.

Depends-On: https://review.openstack.org/584944
Change-Id: I84751c175d0c5f6d857a5473d2db6d5f1b41f946

1 files changed, 31 insertions, 0 deletions

diff --git a/openstackclient/tests/functional/common/test_versions.py b/openstackclient/tests/functional/common/test_versions.py
new file mode 100644
index 00000000..adc74ebc
--- /dev/null
+++ b/openstackclient/tests/functional/common/test_versions.py
@@ -0,0 +1,31 @@
+#    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 json
+
+from openstackclient.tests.functional import base
+
+
+class VersionsTests(base.TestCase):
+    """Functional tests for versions."""
+
+    def test_versions_show(self):
+        # TODO(mordred) Make this better. The trick is knowing what in the
+        # payload to test for.
+        cmd_output = json.loads(self.openstack(
+            'versions show -f json'
+        ))
+        self.assertIsNotNone(cmd_output)
+        self.assertIn(
+            "Region Name",
+            cmd_output[0],
+        )