diff --git a/tempest/api/telemetry/test_alarming_api_negative.py b/tempest/api/telemetry/test_alarming_api_negative.py
new file mode 100644
index 0000000..7d5a0bf
--- /dev/null
+++ b/tempest/api/telemetry/test_alarming_api_negative.py
@@ -0,0 +1,71 @@
+#    Copyright 2015 GlobalLogic.  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.telemetry import base
+from tempest.common.utils import data_utils
+from tempest import test
+from tempest_lib import exceptions as lib_exc
+
+import uuid
+
+
+class TelemetryAlarmingNegativeTest(base.BaseTelemetryTest):
+    """here we have negative tests for show_alarm, update_alarm, show_alarm_history
+       Tests
+        ** show non-existent alarm
+        ** show the deleted alarm
+        ** delete deleted alarm
+        ** update deleted alarm
+    """
+
+    @test.attr(type=['negative'])
+    @test.idempotent_id('668743d5-08ad-4480-b2b8-15da34f81e7d')
+    def test_get_non_existent_alarm(self):
+        # get the non-existent alarm
+        non_existent_id = str(uuid.uuid4())
+        self.assertRaises(lib_exc.NotFound, self.telemetry_client.show_alarm,
+                          non_existent_id)
+
+    @test.attr(type=['negative'])
+    @test.idempotent_id('ef45000d-0a72-4781-866d-4cb7bf2582ad')
+    def test_get_update_show_history_delete_deleted_alarm(self):
+        # get, update and delete the deleted alarm
+        alarm_name = data_utils.rand_name('telemetry_alarm')
+        rule = {'meter_name': 'cpu',
+                'comparison_operator': 'eq',
+                'threshold': 100.0,
+                'period': 90}
+        body = self.telemetry_client.create_alarm(
+            name=alarm_name,
+            type='threshold',
+            threshold_rule=rule)
+        alarm_id = body['alarm_id']
+        self.telemetry_client.delete_alarm(alarm_id)
+        # get the deleted alarm
+        self.assertRaises(lib_exc.NotFound, self.telemetry_client.show_alarm,
+                          alarm_id)
+
+        # update the deleted alarm
+        updated_alarm_name = data_utils.rand_name('telemetry_alarm_updated')
+        updated_rule = {'meter_name': 'cpu_new',
+                        'comparison_operator': 'eq',
+                        'threshold': 70,
+                        'period': 50}
+        self.assertRaises(lib_exc.NotFound, self.telemetry_client.update_alarm,
+                          alarm_id, threshold_rule=updated_rule,
+                          name=updated_alarm_name,
+                          type='threshold')
+        # delete the deleted alarm
+        self.assertRaises(lib_exc.NotFound, self.telemetry_client.delete_alarm,
+                          alarm_id)
diff --git a/tempest/clients.py b/tempest/clients.py
index b42c0a6..dd0d145 100644
--- a/tempest/clients.py
+++ b/tempest/clients.py
@@ -74,8 +74,8 @@
     ServerGroupsClient
 from tempest.services.compute.json.servers_client import ServersClient
 from tempest.services.compute.json.services_client import ServicesClient
-from tempest.services.compute.json.snapshots_extensions_client import \
-    SnapshotsExtensionsClient
+from tempest.services.compute.json.snapshots_client import \
+    SnapshotsClient as ComputeSnapshotsClient
 from tempest.services.compute.json.tenant_networks_client import \
     TenantNetworksClient
 from tempest.services.compute.json.tenant_usages_client import \
@@ -338,7 +338,7 @@
             self.auth_provider, **params_volume)
         self.compute_versions_client = VersionsClient(self.auth_provider,
                                                       **params_volume)
-        self.snapshots_extensions_client = SnapshotsExtensionsClient(
+        self.snapshots_extensions_client = ComputeSnapshotsClient(
             self.auth_provider, **params_volume)
 
     def _set_database_clients(self):
diff --git a/tempest/services/compute/json/snapshots_extensions_client.py b/tempest/services/compute/json/snapshots_client.py
similarity index 97%
rename from tempest/services/compute/json/snapshots_extensions_client.py
rename to tempest/services/compute/json/snapshots_client.py
index 6902a39..e3f92db 100644
--- a/tempest/services/compute/json/snapshots_extensions_client.py
+++ b/tempest/services/compute/json/snapshots_client.py
@@ -21,7 +21,7 @@
 from tempest.common import service_client
 
 
-class SnapshotsExtensionsClient(service_client.ServiceClient):
+class SnapshotsClient(service_client.ServiceClient):
 
     def create_snapshot(self, volume_id, **kwargs):
         post_body = {