diff --git a/tempest/api/compute/admin/test_agents.py b/tempest/api/compute/admin/test_agents.py
index 69cbfb5..0901374 100644
--- a/tempest/api/compute/admin/test_agents.py
+++ b/tempest/api/compute/admin/test_agents.py
@@ -86,7 +86,7 @@
         body = self.client.create_agent(**self.params_agent)['agent']
         self.addCleanup(self.client.delete_agent, body['agent_id'])
         agents = self.client.list_agents()['agents']
-        self.assertNotEmpty(agents, 'Cannot get any agents.(%s)' % agents)
+        self.assertNotEmpty(agents, 'Cannot get any agents.')
         self.assertIn(body['agent_id'], map(lambda x: x['agent_id'], agents))
 
     @decorators.idempotent_id('eabadde4-3cd7-4ec4-a4b5-5a936d2d4408')
@@ -104,7 +104,7 @@
         agent_id_xen = agent_xen['agent_id']
         agents = (self.client.list_agents(hypervisor=agent_xen['hypervisor'])
                   ['agents'])
-        self.assertNotEmpty(agents, 'Cannot get any agents.(%s)' % agents)
+        self.assertNotEmpty(agents, 'Cannot get any agents.')
         self.assertIn(agent_id_xen, map(lambda x: x['agent_id'], agents))
         self.assertNotIn(body['agent_id'], map(lambda x: x['agent_id'],
                                                agents))
diff --git a/tempest/api/compute/admin/test_hypervisor.py b/tempest/api/compute/admin/test_hypervisor.py
index 0db802c..404fd94 100644
--- a/tempest/api/compute/admin/test_hypervisor.py
+++ b/tempest/api/compute/admin/test_hypervisor.py
@@ -30,26 +30,23 @@
         hypers = self.client.list_hypervisors()['hypervisors']
         return hypers
 
-    def assertHypervisors(self, hypers):
-        self.assertNotEmpty(hypers, "No hypervisors found: %s" % hypers)
-
     @decorators.idempotent_id('7f0ceacd-c64d-4e96-b8ee-d02943142cc5')
     def test_get_hypervisor_list(self):
         # List of hypervisor and available hypervisors hostname
         hypers = self._list_hypervisors()
-        self.assertHypervisors(hypers)
+        self.assertNotEmpty(hypers, "No hypervisors found.")
 
     @decorators.idempotent_id('1e7fdac2-b672-4ad1-97a4-bad0e3030118')
     def test_get_hypervisor_list_details(self):
         # Display the details of the all hypervisor
         hypers = self.client.list_hypervisors(detail=True)['hypervisors']
-        self.assertHypervisors(hypers)
+        self.assertNotEmpty(hypers, "No hypervisors found.")
 
     @decorators.idempotent_id('94ff9eae-a183-428e-9cdb-79fde71211cc')
     def test_get_hypervisor_show_details(self):
         # Display the details of the specified hypervisor
         hypers = self._list_hypervisors()
-        self.assertHypervisors(hypers)
+        self.assertNotEmpty(hypers, "No hypervisors found.")
 
         details = self.client.show_hypervisor(hypers[0]['id'])['hypervisor']
         self.assertNotEmpty(details)
@@ -60,7 +57,7 @@
     def test_get_hypervisor_show_servers(self):
         # Show instances about the specific hypervisors
         hypers = self._list_hypervisors()
-        self.assertHypervisors(hypers)
+        self.assertNotEmpty(hypers, "No hypervisors found.")
 
         hostname = hypers[0]['hypervisor_hostname']
         hypervisors = (self.client.list_servers_on_hypervisor(hostname)
@@ -116,7 +113,7 @@
     @decorators.idempotent_id('d7e1805b-3b14-4a3b-b6fd-50ec6d9f361f')
     def test_search_hypervisor(self):
         hypers = self._list_hypervisors()
-        self.assertHypervisors(hypers)
+        self.assertNotEmpty(hypers, "No hypervisors found.")
         hypers = self.client.search_hypervisor(
             hypers[0]['hypervisor_hostname'])['hypervisors']
-        self.assertHypervisors(hypers)
+        self.assertNotEmpty(hypers, "No hypervisors found.")