diff --git a/tempest/lib/api_schema/response/volume/group_snapshots.py b/tempest/lib/api_schema/response/volume/group_snapshots.py
new file mode 100644
index 0000000..c75c3ba
--- /dev/null
+++ b/tempest/lib/api_schema/response/volume/group_snapshots.py
@@ -0,0 +1,106 @@
+# Copyright 2015 NEC Corporation.  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.lib.api_schema.response.compute.v2_1 import parameter_types
+
+create_group_snapshot = {
+    'status_code': [202],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'group_snapshot': {
+                'type': 'object',
+                'properties': {
+                    'id': {'type': 'string', 'format': 'uuid'},
+                    'name': {'type': 'string'},
+                    'group_type_id': {'type': 'string', 'format': 'uuid'},
+                },
+                'additionalProperties': False,
+                'required': ['id', 'name', 'group_type_id']
+            }
+        },
+        'additionalProperties': False,
+        'required': ['group_snapshot']
+    }
+}
+
+delete_group_snapshot = {'status_code': [202]}
+
+common_show_group_snapshot = {
+    'type': 'object',
+    'properties': {
+        'created_at': parameter_types.date_time,
+        'group_id': {'type': 'string', 'format': 'uuid'},
+        'id': {'type': 'string', 'format': 'uuid'},
+        'name': {'type': 'string'},
+        'status': {'type': 'string'},
+        'description': {'type': ['string', 'null']},
+        'group_type_id': {'type': 'string', 'format': 'uuid'},
+    },
+    'additionalProperties': False,
+    'required': ['created_at', 'group_id', 'id', 'name',
+                 'status', 'description', 'group_type_id']
+}
+
+show_group_snapshot = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'group_snapshot': common_show_group_snapshot
+        },
+        'additionalProperties': False,
+        'required': ['group_snapshot']
+    }
+}
+
+list_group_snapshots_no_detail = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'group_snapshots': {
+                'type': 'array',
+                'items': {
+                    'type': 'object',
+                    'properties': {
+                        'id': {'type': 'string', 'format': 'uuid'},
+                        'name': {'type': 'string'}
+                    },
+                    'additionalProperties': False,
+                    'required': ['id', 'name'],
+                }
+            }
+        },
+        'additionalProperties': False,
+        'required': ['group_snapshots'],
+    }
+}
+
+list_group_snapshots_with_detail = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'group_snapshots': {
+                'type': 'array',
+                'items': common_show_group_snapshot
+            }
+        },
+        'additionalProperties': False,
+        'required': ['group_snapshots'],
+    }
+}
+
+reset_group_snapshot_status = {'status_code': [202]}
diff --git a/tempest/lib/services/volume/v3/group_snapshots_client.py b/tempest/lib/services/volume/v3/group_snapshots_client.py
index e425a3f..4051c06 100644
--- a/tempest/lib/services/volume/v3/group_snapshots_client.py
+++ b/tempest/lib/services/volume/v3/group_snapshots_client.py
@@ -16,6 +16,7 @@
 from oslo_serialization import jsonutils as json
 from six.moves.urllib import parse as urllib
 
+from tempest.lib.api_schema.response.volume import group_snapshots as schema
 from tempest.lib.common import rest_client
 from tempest.lib import exceptions as lib_exc
 from tempest.lib.services.volume import base_client
@@ -34,7 +35,7 @@
         post_body = json.dumps({'group_snapshot': kwargs})
         resp, body = self.post('group_snapshots', post_body)
         body = json.loads(body)
-        self.expected_success(202, resp.status)
+        self.validate_response(schema.create_group_snapshot, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def delete_group_snapshot(self, group_snapshot_id):
@@ -44,7 +45,7 @@
         https://docs.openstack.org/api-ref/block-storage/v3/#delete-group-snapshot
         """
         resp, body = self.delete('group_snapshots/%s' % group_snapshot_id)
-        self.expected_success(202, resp.status)
+        self.validate_response(schema.delete_group_snapshot, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def show_group_snapshot(self, group_snapshot_id):
@@ -56,7 +57,7 @@
         url = "group_snapshots/%s" % str(group_snapshot_id)
         resp, body = self.get(url)
         body = json.loads(body)
-        self.expected_success(200, resp.status)
+        self.validate_response(schema.show_group_snapshot, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def list_group_snapshots(self, detail=False, **params):
@@ -67,13 +68,15 @@
         https://docs.openstack.org/api-ref/block-storage/v3/#list-group-snapshots-with-details
         """
         url = "group_snapshots"
+        list_group_snapshots = schema.list_group_snapshots_no_detail
         if detail:
             url += "/detail"
+            list_group_snapshots = schema.list_group_snapshots_with_detail
         if params:
             url += '?%s' % urllib.urlencode(params)
         resp, body = self.get(url)
         body = json.loads(body)
-        self.expected_success(200, resp.status)
+        self.validate_response(list_group_snapshots, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def reset_group_snapshot_status(self, group_snapshot_id, status_to_set):
@@ -85,7 +88,7 @@
         post_body = json.dumps({'reset_status': {'status': status_to_set}})
         resp, body = self.post('group_snapshots/%s/action' % group_snapshot_id,
                                post_body)
-        self.expected_success(202, resp.status)
+        self.validate_response(schema.reset_group_snapshot_status, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def is_resource_deleted(self, id):