diff --git a/tempest/api/compute/flavors/test_flavors.py b/tempest/api/compute/flavors/test_flavors.py
index fa99422..092fd65 100644
--- a/tempest/api/compute/flavors/test_flavors.py
+++ b/tempest/api/compute/flavors/test_flavors.py
@@ -16,7 +16,6 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest import exceptions
 from tempest.test import attr
 
 
@@ -50,12 +49,6 @@
         resp, flavor = self.client.get_flavor_details(self.flavor_ref)
         self.assertEqual(self.flavor_ref, flavor['id'])
 
-    @attr(type=['negative', 'gate'])
-    def test_get_non_existant_flavor(self):
-        # flavor details are not returned for non-existent flavors
-        self.assertRaises(exceptions.NotFound, self.client.get_flavor_details,
-                          999)
-
     @attr(type='gate')
     def test_list_flavors_limit_results(self):
         # Only the expected number of flavors should be returned
@@ -136,24 +129,6 @@
         resp, flavors = self.client.list_flavors(params)
         self.assertFalse(any([i for i in flavors if i['id'] == flavor_id]))
 
-    @attr(type=['negative', 'gate'])
-    def test_invalid_minRam_filter(self):
-        self.assertRaises(exceptions.BadRequest,
-                          self.client.list_flavors_with_detail,
-                          {'minRam': 'invalid'})
-
-    @attr(type=['negative', 'gate'])
-    def test_invalid_minDisk_filter(self):
-        self.assertRaises(exceptions.BadRequest,
-                          self.client.list_flavors_with_detail,
-                          {'minDisk': 'invalid'})
-
-    @attr(type=['negative', 'gate'])
-    def test_get_flavor_details_for_invalid_flavor_id(self):
-        # Ensure 404 returned for non-existent flavor ID
-        self.assertRaises(exceptions.NotFound, self.client.get_flavor_details,
-                          9999)
-
 
 class FlavorsTestXML(FlavorsTestJSON):
     _interface = 'xml'
diff --git a/tempest/api/compute/flavors/test_flavors_negative.py b/tempest/api/compute/flavors/test_flavors_negative.py
new file mode 100644
index 0000000..81e4f87
--- /dev/null
+++ b/tempest/api/compute/flavors/test_flavors_negative.py
@@ -0,0 +1,69 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2013 OpenStack Foundation
+# 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.
+
+import uuid
+
+from tempest.api.compute import base
+from tempest.common.utils import data_utils
+from tempest import exceptions
+from tempest.test import attr
+
+
+class FlavorsNegativeTestJSON(base.BaseV2ComputeTest):
+    _interface = 'json'
+
+    @classmethod
+    def setUpClass(cls):
+        super(FlavorsNegativeTestJSON, cls).setUpClass()
+        cls.client = cls.flavors_client
+
+        # Generating a nonexistent flavor id
+        resp, flavors = cls.client.list_flavors()
+        flavor_ids = [flavor['id'] for flavor in flavors]
+        while True:
+            cls.nonexistent_flavor_id = data_utils.rand_int_id(start=999)
+            if cls.nonexistent_flavor_id not in flavor_ids:
+                break
+
+    @attr(type=['negative', 'gate'])
+    def test_invalid_minRam_filter(self):
+        self.assertRaises(exceptions.BadRequest,
+                          self.client.list_flavors_with_detail,
+                          {'minRam': 'invalid'})
+
+    @attr(type=['negative', 'gate'])
+    def test_invalid_minDisk_filter(self):
+        self.assertRaises(exceptions.BadRequest,
+                          self.client.list_flavors_with_detail,
+                          {'minDisk': 'invalid'})
+
+    @attr(type=['negative', 'gate'])
+    def test_get_flavor_details_for_invalid_flavor_id(self):
+        # Ensure 404 returned for invalid flavor ID
+        invalid_flavor_id = str(uuid.uuid4())
+        self.assertRaises(exceptions.NotFound, self.client.get_flavor_details,
+                          invalid_flavor_id)
+
+    @attr(type=['negative', 'gate'])
+    def test_non_existent_flavor_id(self):
+        # flavor details are not returned for non-existent flavors
+        self.assertRaises(exceptions.NotFound, self.client.get_flavor_details,
+                          self.nonexistent_flavor_id)
+
+
+class FlavorsNegativeTestXML(FlavorsNegativeTestJSON):
+    _interface = 'xml'