Add unit tests for _get_unversioned_endpoint

This commit adds the first unit tests for the verify_tempest_config
script which covers the code used to format an unversioned endpoint
from a versioned one returned from the keystone catalog. This also
breaks that section of the script off into a separate method so that
mocks were not needed for such a simple test case.

Partially implements bp: config-verification

Change-Id: I6f48034af5fc187f6ae7d5c9b3dccb61f309ae25

tempest/cmd/verify_tempest_config.py

@@ -75,6 +75,12 @@ def verify_glance_api_versions(os, update):
                             not CONF.image_feature_enabled.api_v2, update)
 
 
+def _get_unversioned_endpoint(base_url):
+    endpoint_parts = urlparse.urlparse(base_url)
+    endpoint = endpoint_parts.scheme + '://' + endpoint_parts.netloc
+    return endpoint
+
+
 def _get_api_versions(os, service):
     client_dict = {
         'nova': os.servers_client,
@@ -82,8 +88,7 @@ def _get_api_versions(os, service):
         'cinder': os.volumes_client,
     }
     client_dict[service].skip_path()
-    endpoint_parts = urlparse.urlparse(client_dict[service].base_url)
-    endpoint = endpoint_parts.scheme + '://' + endpoint_parts.netloc
+    endpoint = _get_unversioned_endpoint(client_dict[service].base_url)
     __, body = RAW_HTTP.request(endpoint, 'GET')
     client_dict[service].reset_path()
     body = json.loads(body)

tempest/tests/cmd/test_verify_tempest_config.py

@@ -0,0 +1,30 @@
+# Copyright 2014 IBM Corp.
+#
+#    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.cmd import verify_tempest_config
+from tempest.tests import base
+
+
+class TestGetAPIVersions(base.TestCase):
+
+    def test_url_grab_versioned_nova_nossl(self):
+        base_url = 'http://127.0.0.1:8774/v2/'
+        endpoint = verify_tempest_config._get_unversioned_endpoint(base_url)
+        self.assertEqual('http://127.0.0.1:8774', endpoint)
+
+    def test_url_grab_versioned_nova_ssl(self):
+        base_url = 'https://127.0.0.1:8774/v3/'
+        endpoint = verify_tempest_config._get_unversioned_endpoint(base_url)
+        self.assertEqual('https://127.0.0.1:8774', endpoint)