Add get metadata schema test methods

We already have image and member schema test methods, so add
metadata schema test methods.

Related links:
http://developer.openstack.org/api-ref/image/v2/metadefs-index.html

Co-Authored-By: guo yunxian <yunxian.guo@easystack.cn>

Change-Id: Ifdcd44a38c93b18c2298e74414e1b38434292998
diff --git a/tempest/api/image/v2/test_images_metadefs_schema.py b/tempest/api/image/v2/test_images_metadefs_schema.py
new file mode 100644
index 0000000..7edf1af
--- /dev/null
+++ b/tempest/api/image/v2/test_images_metadefs_schema.py
@@ -0,0 +1,81 @@
+# Copyright 2016 EasyStack.
+# 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.api.image import base
+from tempest import test
+
+
+class MetadataSchemaTest(base.BaseV2ImageTest):
+    """Test to get metadata schema"""
+
+    @test.idempotent_id('e9e44891-3cb8-3b40-a532-e0a39fea3dab')
+    def test_get_metadata_namespace_schema(self):
+        # Test to get namespace schema
+        body = self.schemas_client.show_schema("metadefs/namespace")
+        self.assertEqual("namespace", body['name'])
+
+    @test.idempotent_id('ffe44891-678b-3ba0-a3e2-e0a3967b3aeb')
+    def test_get_metadata_namespaces_schema(self):
+        # Test to get namespaces schema
+        body = self.schemas_client.show_schema("metadefs/namespaces")
+        self.assertEqual("namespaces", body['name'])
+
+    @test.idempotent_id('fde34891-678b-3b40-ae32-e0a3e67b6beb')
+    def test_get_metadata_resource_type_schema(self):
+        # Test to get resource_type schema
+        body = self.schemas_client.show_schema("metadefs/resource_type")
+        self.assertEqual("resource_type_association", body['name'])
+
+    @test.idempotent_id('dfe4a891-b38b-3bf0-a3b2-e03ee67b3a3a')
+    def test_get_metadata_resources_types_schema(self):
+        # Test to get resource_types schema
+        body = self.schemas_client.show_schema("metadefs/resource_types")
+        self.assertEqual("resource_type_associations", body['name'])
+
+    @test.idempotent_id('dff4a891-b38b-3bf0-a3b2-e03ee67b3a3b')
+    def test_get_metadata_object_schema(self):
+        # Test to get object schema
+        body = self.schemas_client.show_schema("metadefs/object")
+        self.assertEqual("object", body['name'])
+
+    @test.idempotent_id('dee4a891-b38b-3bf0-a3b2-e03ee67b3a3c')
+    def test_get_metadata_objects_schema(self):
+        # Test to get objects schema
+        body = self.schemas_client.show_schema("metadefs/objects")
+        self.assertEqual("objects", body['name'])
+
+    @test.idempotent_id('dae4a891-b38b-3bf0-a3b2-e03ee67b3a3d')
+    def test_get_metadata_property_schema(self):
+        # Test to get property schema
+        body = self.schemas_client.show_schema("metadefs/property")
+        self.assertEqual("property", body['name'])
+
+    @test.idempotent_id('dce4a891-b38b-3bf0-a3b2-e03ee67b3a3e')
+    def test_get_metadata_properties_schema(self):
+        # Test to get properties schema
+        body = self.schemas_client.show_schema("metadefs/properties")
+        self.assertEqual("properties", body['name'])
+
+    @test.idempotent_id('dde4a891-b38b-3bf0-a3b2-e03ee67b3a3e')
+    def test_get_metadata_tag_schema(self):
+        # Test to get tag schema
+        body = self.schemas_client.show_schema("metadefs/tag")
+        self.assertEqual("tag", body['name'])
+
+    @test.idempotent_id('cde4a891-b38b-3bf0-a3b2-e03ee67b3a3a')
+    def test_get_metadata_tags_schema(self):
+        # Test to get tags schema
+        body = self.schemas_client.show_schema("metadefs/tags")
+        self.assertEqual("tags", body['name'])