diff --git a/tempest/api/compute/admin/test_aggregates_negative.py b/tempest/api/compute/admin/test_aggregates_negative.py
index 609eae6..85aa301 100644
--- a/tempest/api/compute/admin/test_aggregates_negative.py
+++ b/tempest/api/compute/admin/test_aggregates_negative.py
@@ -177,6 +177,5 @@
     def test_aggregate_remove_nonexistent_host(self):
         aggregate = self._create_test_aggregate()
 
-        non_exist_host = data_utils.rand_name('nonexist_host')
         self.assertRaises(lib_exc.NotFound, self.client.remove_host,
-                          aggregate['id'], host=non_exist_host)
+                          aggregate['id'], host='nonexist_host')
diff --git a/tempest/api/compute/admin/test_flavors_extra_specs_negative.py b/tempest/api/compute/admin/test_flavors_extra_specs_negative.py
index b0ab9be..7eb4bbf 100644
--- a/tempest/api/compute/admin/test_flavors_extra_specs_negative.py
+++ b/tempest/api/compute/admin/test_flavors_extra_specs_negative.py
@@ -102,11 +102,10 @@
     @test.attr(type=['negative'])
     @test.idempotent_id('440b9f3f-3c7f-4293-a106-0ceda350f8de')
     def test_flavor_unset_nonexistent_key(self):
-        nonexistent_key = data_utils.rand_name('flavor_key')
         self.assertRaises(lib_exc.NotFound,
                           self.client.unset_flavor_extra_spec,
                           self.flavor['id'],
-                          nonexistent_key)
+                          'nonexistent_key')
 
     @test.attr(type=['negative'])
     @test.idempotent_id('329a7be3-54b2-48be-8052-bf2ce4afd898')
diff --git a/tempest/api/compute/admin/test_hypervisor_negative.py b/tempest/api/compute/admin/test_hypervisor_negative.py
index 220ea39..0f35e14 100644
--- a/tempest/api/compute/admin/test_hypervisor_negative.py
+++ b/tempest/api/compute/admin/test_hypervisor_negative.py
@@ -122,12 +122,10 @@
     @test.attr(type=['negative'])
     @test.idempotent_id('19a45cc1-1000-4055-b6d2-28e8b2ec4faa')
     def test_search_nonexistent_hypervisor(self):
-        nonexistent_hypervisor_name = data_utils.rand_name('test_hypervisor')
-
         self.assertRaises(
             lib_exc.NotFound,
             self.client.search_hypervisor,
-            nonexistent_hypervisor_name)
+            'nonexistent_hypervisor_name')
 
     @test.attr(type=['negative'])
     @test.idempotent_id('5b6a6c79-5dc1-4fa5-9c58-9c8085948e74')
diff --git a/tempest/api/object_storage/test_container_services_negative.py b/tempest/api/object_storage/test_container_services_negative.py
index 7049db0..e6c53ec 100644
--- a/tempest/api/object_storage/test_container_services_negative.py
+++ b/tempest/api/object_storage/test_container_services_negative.py
@@ -92,47 +92,39 @@
     def test_get_metadata_headers_with_invalid_container_name(self):
         # Attempts to retrieve metadata headers with an invalid
         # container name.
-        invalid_name = data_utils.rand_name(name="TestInvalidContainer")
-
         self.assertRaises(exceptions.NotFound,
                           self.container_client.list_container_metadata,
-                          invalid_name)
+                          'invalid_container_name')
 
     @test.attr(type=["negative"])
     @test.idempotent_id('125a24fa-90a7-4cfc-b604-44e49d788390')
     def test_update_metadata_with_nonexistent_container_name(self):
         # Attempts to update metadata using a nonexistent container name.
-        nonexistent_name = data_utils.rand_name(
-            name="TestNonexistentContainer")
         metadata = {'animal': 'penguin'}
 
         self.assertRaises(exceptions.NotFound,
                           self.container_client.update_container_metadata,
-                          nonexistent_name, metadata)
+                          'nonexistent_container_name', metadata)
 
     @test.attr(type=["negative"])
     @test.idempotent_id('65387dbf-a0e2-4aac-9ddc-16eb3f1f69ba')
     def test_delete_with_nonexistent_container_name(self):
         # Attempts to delete metadata using a nonexistent container name.
-        nonexistent_name = data_utils.rand_name(
-            name="TestNonexistentContainer")
         metadata = {'animal': 'penguin'}
 
         self.assertRaises(exceptions.NotFound,
                           self.container_client.delete_container_metadata,
-                          nonexistent_name, metadata)
+                          'nonexistent_container_name', metadata)
 
     @test.attr(type=["negative"])
     @test.idempotent_id('14331d21-1e81-420a-beea-19cb5e5207f5')
     def test_list_all_container_objects_with_nonexistent_container(self):
         # Attempts to get a listing of all objects on a container
         # that doesn't exist.
-        nonexistent_name = data_utils.rand_name(
-            name="TestNonexistentContainer")
         params = {'limit': 9999, 'format': 'json'}
         self.assertRaises(exceptions.NotFound,
                           self.container_client.list_container_contents,
-                          nonexistent_name, params)
+                          'nonexistent_container_name', params)
 
     @test.attr(type=["negative"])
     @test.idempotent_id('86b2ab08-92d5-493d-acd2-85f0c848819e')