Add negative tempset API test for api-version

This patch add negative tempest API test for
api-version show. It also fix API doc for
api-version interface.

Change-Id: Idc2a6aab463829e6a502e815a31ab8c07d4d9dab

api-ref/source/versions.inc

@@ -42,7 +42,11 @@ Show Details of an API Version
 Show details about an API major version.
 
 Normal response codes: 200
-Error response codes: serviceUnavailable (503)
+
+Error response codes:
+
+- notFound (404)
+- serviceUnavailable (503)
 
 Response Parameters
 -------------------

senlin/tests/tempest/api/api_versions/test_api_version_show_negative.py

@@ -0,0 +1,26 @@
+# 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.lib import decorators
+from tempest.lib import exceptions
+
+from senlin.tests.tempest.api import base
+
+
+class TestAPIVersionShowNegative(base.BaseSenlinTest):
+
+    @decorators.idempotent_id('a3b02638-2459-41ab-a70b-a6f1a269914e')
+    def test_API_version_show_invalid_version(self):
+        resp, body = self.client.request('GET', '/v1/')
+        self.assertRaises(exceptions.NotFound,
+                          self.client.request,
+                          'GET', '/vx')