diff --git a/HACKING.rst b/HACKING.rst
index 1083075..3fa1ff5 100644
--- a/HACKING.rst
+++ b/HACKING.rst
@@ -39,7 +39,7 @@
 when the additional operations leads to another exception.
 
 Just letting an exception to propagate, is not bad idea in a test case,
- at all.
+at all.
 
 Try to avoid using any exception handling construct which can hide the errors
 origin.
@@ -53,10 +53,10 @@
 test fails part way through.
 
 Use the ``self.assert*`` methods provided by the unit test framework
- the signal failures early.
+the signal failures early.
 
 Avoid using the ``self.fail`` alone, it's stack trace will signal
- the ``self.fail`` line as the origin of the error.
+the ``self.fail`` line as the origin of the error.
 
 Avoid constructing complex boolean expressions for assertion.
 The ``self.assertTrue`` or ``self.assertFalse`` without a ``msg`` argument,
diff --git a/tempest/api/compute/admin/test_availability_zone.py b/tempest/api/compute/admin/test_availability_zone.py
index d6488c4..e1a1a5d 100644
--- a/tempest/api/compute/admin/test_availability_zone.py
+++ b/tempest/api/compute/admin/test_availability_zone.py
@@ -16,21 +16,20 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest import exceptions
 from tempest.test import attr
 
 
-class AvailabilityZoneAdminTestJSON(base.BaseV2ComputeAdminTest):
+class AZAdminTestJSON(base.BaseV2ComputeAdminTest):
 
     """
-    Tests Availability Zone API List that require admin privileges
+    Tests Availability Zone API List
     """
 
     _interface = 'json'
 
     @classmethod
     def setUpClass(cls):
-        super(AvailabilityZoneAdminTestJSON, cls).setUpClass()
+        super(AZAdminTestJSON, cls).setUpClass()
         cls.client = cls.os_adm.availability_zone_client
         cls.non_adm_client = cls.availability_zone_client
 
@@ -57,14 +56,6 @@
         self.assertEqual(200, resp.status)
         self.assertTrue(len(availability_zone) > 0)
 
-    @attr(type=['negative', 'gate'])
-    def test_get_availability_zone_list_detail_with_non_admin_user(self):
-        # List of availability zones and available services with
-        # non-administrator user
-        self.assertRaises(
-            exceptions.Unauthorized,
-            self.non_adm_client.get_availability_zone_list_detail)
 
-
-class AvailabilityZoneAdminTestXML(AvailabilityZoneAdminTestJSON):
+class AZAdminTestXML(AZAdminTestJSON):
     _interface = 'xml'
diff --git a/tempest/api/compute/admin/test_availability_zone_negative.py b/tempest/api/compute/admin/test_availability_zone_negative.py
new file mode 100644
index 0000000..6ba8d58
--- /dev/null
+++ b/tempest/api/compute/admin/test_availability_zone_negative.py
@@ -0,0 +1,45 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+#
+# Copyright 2013 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.api.compute import base
+from tempest import exceptions
+from tempest.test import attr
+
+
+class AZAdminNegativeTestJSON(base.BaseV2ComputeAdminTest):
+
+    """
+    Tests Availability Zone API List
+    """
+
+    _interface = 'json'
+
+    @classmethod
+    def setUpClass(cls):
+        super(AZAdminNegativeTestJSON, cls).setUpClass()
+        cls.non_adm_client = cls.availability_zone_client
+
+    @attr(type=['negative', 'gate'])
+    def test_get_availability_zone_list_detail_with_non_admin_user(self):
+        # List of availability zones and available services with
+        # non-administrator user
+        self.assertRaises(
+            exceptions.Unauthorized,
+            self.non_adm_client.get_availability_zone_list_detail)
+
+
+class AZAdminNegativeTestXML(AZAdminNegativeTestJSON):
+    _interface = 'xml'
diff --git a/tempest/api/compute/flavors/test_flavors_negative.py b/tempest/api/compute/flavors/test_flavors_negative.py
index 81e4f87..0b20e90 100644
--- a/tempest/api/compute/flavors/test_flavors_negative.py
+++ b/tempest/api/compute/flavors/test_flavors_negative.py
@@ -18,7 +18,6 @@
 import uuid
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest import exceptions
 from tempest.test import attr
 
@@ -31,14 +30,6 @@
         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,
@@ -52,17 +43,11 @@
                           {'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
+        nonexistent_flavor_id = str(uuid.uuid4())
         self.assertRaises(exceptions.NotFound, self.client.get_flavor_details,
-                          self.nonexistent_flavor_id)
+                          nonexistent_flavor_id)
 
 
 class FlavorsNegativeTestXML(FlavorsNegativeTestJSON):
diff --git a/tempest/api/compute/keypairs/test_keypairs.py b/tempest/api/compute/keypairs/test_keypairs.py
index 50b6c77..b36595c 100644
--- a/tempest/api/compute/keypairs/test_keypairs.py
+++ b/tempest/api/compute/keypairs/test_keypairs.py
@@ -17,7 +17,7 @@
 
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
-from tempest.test import attr
+from tempest import test
 
 
 class KeyPairsTestJSON(base.BaseV2ComputeTest):
@@ -28,14 +28,23 @@
         super(KeyPairsTestJSON, cls).setUpClass()
         cls.client = cls.keypairs_client
 
-    @attr(type='gate')
+    def _delete_keypair(self, keypair_name):
+        resp, _ = self.client.delete_keypair(keypair_name)
+        self.assertEqual(202, resp.status)
+
+    def _create_keypair(self, keypair_name, pub_key=None):
+        resp, body = self.client.create_keypair(keypair_name, pub_key)
+        self.addCleanup(self._delete_keypair, keypair_name)
+        return resp, body
+
+    @test.attr(type='gate')
     def test_keypairs_create_list_delete(self):
         # Keypairs created should be available in the response list
         # Create 3 keypairs
         key_list = list()
         for i in range(3):
             k_name = data_utils.rand_name('keypair-')
-            resp, keypair = self.client.create_keypair(k_name)
+            resp, keypair = self._create_keypair(k_name)
             # Need to pop these keys so that our compare doesn't fail later,
             # as the keypair dicts from list API doesn't have them.
             keypair.pop('private_key')
@@ -57,16 +66,12 @@
         self.assertFalse(missing_kps,
                          "Failed to find keypairs %s in fetched list"
                          % ', '.join(m_key['name'] for m_key in missing_kps))
-        # Delete all the keypairs created
-        for keypair in key_list:
-            resp, _ = self.client.delete_keypair(keypair['name'])
-            self.assertEqual(202, resp.status)
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_keypair_create_delete(self):
         # Keypair should be created, verified and deleted
         k_name = data_utils.rand_name('keypair-')
-        resp, keypair = self.client.create_keypair(k_name)
+        resp, keypair = self._create_keypair(k_name)
         self.assertEqual(200, resp.status)
         private_key = keypair['private_key']
         key_name = keypair['name']
@@ -75,15 +80,12 @@
                          "to the requested name")
         self.assertTrue(private_key is not None,
                         "Field private_key is empty or not found.")
-        resp, _ = self.client.delete_keypair(k_name)
-        self.assertEqual(202, resp.status)
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_get_keypair_detail(self):
         # Keypair should be created, Got details by name and deleted
         k_name = data_utils.rand_name('keypair-')
-        resp, keypair = self.client.create_keypair(k_name)
-        self.addCleanup(self.client.delete_keypair, k_name)
+        resp, keypair = self._create_keypair(k_name)
         resp, keypair_detail = self.client.get_keypair(k_name)
         self.assertEqual(200, resp.status)
         self.assertIn('name', keypair_detail)
@@ -95,7 +97,7 @@
         self.assertTrue(public_key is not None,
                         "Field public_key is empty or not found.")
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_keypair_create_with_pub_key(self):
         # Keypair should be created with a given public key
         k_name = data_utils.rand_name('keypair-')
@@ -108,7 +110,7 @@
                    "LOeB1kYMOBaiUPLQTWXR3JpckqFIQwhIH0zoHlJvZE8hh90"
                    "XcPojYN56tI0OlrGqojbediJYD0rUsJu4weZpbn8vilb3JuDY+jws"
                    "snSA8wzBx3A/8y9Pp1B nova@ubuntu")
-        resp, keypair = self.client.create_keypair(k_name, pub_key)
+        resp, keypair = self._create_keypair(k_name, pub_key)
         self.assertEqual(200, resp.status)
         self.assertFalse('private_key' in keypair,
                          "Field private_key is not empty!")
@@ -116,8 +118,6 @@
         self.assertEqual(key_name, k_name,
                          "The created keypair name is not equal "
                          "to the requested name!")
-        resp, _ = self.client.delete_keypair(k_name)
-        self.assertEqual(202, resp.status)
 
 
 class KeyPairsTestXML(KeyPairsTestJSON):
diff --git a/tempest/api/compute/keypairs/test_keypairs_negative.py b/tempest/api/compute/keypairs/test_keypairs_negative.py
index fad985e..621487c 100644
--- a/tempest/api/compute/keypairs/test_keypairs_negative.py
+++ b/tempest/api/compute/keypairs/test_keypairs_negative.py
@@ -19,7 +19,7 @@
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
 from tempest import exceptions
-from tempest.test import attr
+from tempest import test
 
 
 class KeyPairsNegativeTestJSON(base.BaseV2ComputeTest):
@@ -30,67 +30,71 @@
         super(KeyPairsNegativeTestJSON, cls).setUpClass()
         cls.client = cls.keypairs_client
 
-    @attr(type=['negative', 'gate'])
+    def _create_keypair(self, keypair_name, pub_key=None):
+        self.client.create_keypair(keypair_name, pub_key)
+        self.addCleanup(self.client.delete_keypair, keypair_name)
+
+    @test.attr(type=['negative', 'gate'])
     def test_keypair_create_with_invalid_pub_key(self):
         # Keypair should not be created with a non RSA public key
         k_name = data_utils.rand_name('keypair-')
         pub_key = "ssh-rsa JUNK nova@ubuntu"
         self.assertRaises(exceptions.BadRequest,
-                          self.client.create_keypair, k_name, pub_key)
+                          self._create_keypair, k_name, pub_key)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_keypair_delete_nonexistant_key(self):
         # Non-existant key deletion should throw a proper error
         k_name = data_utils.rand_name("keypair-non-existant-")
         self.assertRaises(exceptions.NotFound, self.client.delete_keypair,
                           k_name)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_create_keypair_with_empty_public_key(self):
         # Keypair should not be created with an empty public key
         k_name = data_utils.rand_name("keypair-")
         pub_key = ' '
-        self.assertRaises(exceptions.BadRequest, self.client.create_keypair,
+        self.assertRaises(exceptions.BadRequest, self._create_keypair,
                           k_name, pub_key)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_create_keypair_when_public_key_bits_exceeds_maximum(self):
         # Keypair should not be created when public key bits are too long
         k_name = data_utils.rand_name("keypair-")
         pub_key = 'ssh-rsa ' + 'A' * 2048 + ' openstack@ubuntu'
-        self.assertRaises(exceptions.BadRequest, self.client.create_keypair,
+        self.assertRaises(exceptions.BadRequest, self._create_keypair,
                           k_name, pub_key)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_create_keypair_with_duplicate_name(self):
         # Keypairs with duplicate names should not be created
         k_name = data_utils.rand_name('keypair-')
         resp, _ = self.client.create_keypair(k_name)
         self.assertEqual(200, resp.status)
         # Now try the same keyname to create another key
-        self.assertRaises(exceptions.Conflict, self.client.create_keypair,
+        self.assertRaises(exceptions.Conflict, self._create_keypair,
                           k_name)
         resp, _ = self.client.delete_keypair(k_name)
         self.assertEqual(202, resp.status)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_create_keypair_with_empty_name_string(self):
         # Keypairs with name being an empty string should not be created
-        self.assertRaises(exceptions.BadRequest, self.client.create_keypair,
+        self.assertRaises(exceptions.BadRequest, self._create_keypair,
                           '')
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_create_keypair_with_long_keynames(self):
         # Keypairs with name longer than 255 chars should not be created
         k_name = 'keypair-'.ljust(260, '0')
-        self.assertRaises(exceptions.BadRequest, self.client.create_keypair,
+        self.assertRaises(exceptions.BadRequest, self._create_keypair,
                           k_name)
 
-    @attr(type=['negative', 'gate'])
+    @test.attr(type=['negative', 'gate'])
     def test_create_keypair_invalid_name(self):
         # Keypairs with name being an invalid name should not be created
         k_name = 'key_/.\@:'
-        self.assertRaises(exceptions.BadRequest, self.client.create_keypair,
+        self.assertRaises(exceptions.BadRequest, self._create_keypair,
                           k_name)
 
 
diff --git a/tempest/api/compute/test_extensions.py b/tempest/api/compute/test_extensions.py
index 8f1e446..b0bffc4 100644
--- a/tempest/api/compute/test_extensions.py
+++ b/tempest/api/compute/test_extensions.py
@@ -17,18 +17,31 @@
 
 
 from tempest.api.compute import base
-from tempest.test import attr
+from tempest import test
+import testtools
 
 
 class ExtensionsTestJSON(base.BaseV2ComputeTest):
     _interface = 'json'
 
-    @attr(type='gate')
+    @testtools.skipIf(not test.is_extension_enabled('os-consoles', 'compute'),
+                      'os-consoles extension not enabled.')
+    @test.attr(type='gate')
     def test_list_extensions(self):
         # List of all extensions
         resp, extensions = self.extensions_client.list_extensions()
         self.assertIn("extensions", extensions)
         self.assertEqual(200, resp.status)
+        self.assertTrue(self.extensions_client.is_enabled("Consoles"))
+
+    @testtools.skipIf(not test.is_extension_enabled('os-consoles', 'compute'),
+                      'os-consoles extension not enabled.')
+    @test.attr(type='gate')
+    def test_get_extension(self):
+        # get the specified extensions
+        resp, extension = self.extensions_client.get_extension('os-consoles')
+        self.assertEqual(200, resp.status)
+        self.assertEqual('os-consoles', extension['alias'])
 
 
 class ExtensionsTestXML(ExtensionsTestJSON):
diff --git a/tempest/api/compute/v3/admin/test_availability_zone.py b/tempest/api/compute/v3/admin/test_availability_zone.py
index ff2765c..dca556f 100644
--- a/tempest/api/compute/v3/admin/test_availability_zone.py
+++ b/tempest/api/compute/v3/admin/test_availability_zone.py
@@ -16,21 +16,20 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest import exceptions
 from tempest.test import attr
 
 
-class AvailabilityZoneAdminV3TestJSON(base.BaseV3ComputeAdminTest):
+class AZAdminV3TestJSON(base.BaseV3ComputeAdminTest):
 
     """
-    Tests Availability Zone API List that require admin privileges
+    Tests Availability Zone API List
     """
 
     _interface = 'json'
 
     @classmethod
     def setUpClass(cls):
-        super(AvailabilityZoneAdminV3TestJSON, cls).setUpClass()
+        super(AZAdminV3TestJSON, cls).setUpClass()
         cls.client = cls.availability_zone_admin_client
         cls.non_adm_client = cls.availability_zone_client
 
@@ -57,14 +56,6 @@
         self.assertEqual(200, resp.status)
         self.assertTrue(len(availability_zone) > 0)
 
-    @attr(type=['negative', 'gate'])
-    def test_get_availability_zone_list_detail_with_non_admin_user(self):
-        # List of availability zones and available services with
-        # non-administrator user
-        self.assertRaises(
-            exceptions.Unauthorized,
-            self.non_adm_client.get_availability_zone_list_detail)
 
-
-class AvailabilityZoneAdminV3TestXML(AvailabilityZoneAdminV3TestJSON):
+class AZAdminV3TestXML(AZAdminV3TestJSON):
     _interface = 'xml'
diff --git a/tempest/api/compute/v3/admin/test_availability_zone_negative.py b/tempest/api/compute/v3/admin/test_availability_zone_negative.py
new file mode 100644
index 0000000..93a57e3
--- /dev/null
+++ b/tempest/api/compute/v3/admin/test_availability_zone_negative.py
@@ -0,0 +1,47 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2013 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.api.compute import base
+from tempest import exceptions
+from tempest.test import attr
+
+
+class AZAdminNegativeV3TestJSON(base.BaseV3ComputeAdminTest):
+
+    """
+    Tests Availability Zone API List
+    """
+
+    _interface = 'json'
+
+    @classmethod
+    def setUpClass(cls):
+        super(AZAdminNegativeV3TestJSON, cls).setUpClass()
+        cls.client = cls.availability_zone_admin_client
+        cls.non_adm_client = cls.availability_zone_client
+
+    @attr(type=['negative', 'gate'])
+    def test_get_availability_zone_list_detail_with_non_admin_user(self):
+        # List of availability zones and available services with
+        # non-administrator user
+        self.assertRaises(
+            exceptions.Unauthorized,
+            self.non_adm_client.get_availability_zone_list_detail)
+
+
+class AZAdminNegativeV3TestXML(AZAdminNegativeV3TestJSON):
+    _interface = 'xml'
diff --git a/tempest/api/compute/v3/test_extensions.py b/tempest/api/compute/v3/test_extensions.py
index d7269d1..2affd86 100644
--- a/tempest/api/compute/v3/test_extensions.py
+++ b/tempest/api/compute/v3/test_extensions.py
@@ -17,18 +17,26 @@
 
 
 from tempest.api.compute import base
-from tempest.test import attr
+from tempest import test
 
 
 class ExtensionsV3TestJSON(base.BaseV3ComputeTest):
     _interface = 'json'
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_extensions(self):
         # List of all extensions
         resp, extensions = self.extensions_client.list_extensions()
         self.assertIn("extensions", extensions)
         self.assertEqual(200, resp.status)
+        self.assertTrue(self.extensions_client.is_enabled("Consoles"))
+
+    @test.attr(type='gate')
+    def test_get_extension(self):
+        # get the specified extensions
+        resp, extension = self.extensions_client.get_extension('servers')
+        self.assertEqual(200, resp.status)
+        self.assertEqual('servers', extension['alias'])
 
 
 class ExtensionsV3TestXML(ExtensionsV3TestJSON):
diff --git a/tempest/common/waiters.py b/tempest/common/waiters.py
index 44198f0..d2b40c9 100644
--- a/tempest/common/waiters.py
+++ b/tempest/common/waiters.py
@@ -88,3 +88,34 @@
             raise exceptions.TimeoutException(message)
         old_status = server_status
         old_task_state = task_state
+
+
+def wait_for_image_status(client, image_id, status):
+    """Waits for an image to reach a given status.
+
+    The client should have a get_image(image_id) method to get the image.
+    The client should also have build_interval and build_timeout attributes.
+    """
+    resp, image = client.get_image(image_id)
+    start = int(time.time())
+
+    while image['status'] != status:
+        time.sleep(client.build_interval)
+        resp, image = client.get_image(image_id)
+        if image['status'] == 'ERROR':
+            raise exceptions.AddImageException(image_id=image_id)
+
+        # check the status again to avoid a false negative where we hit
+        # the timeout at the same time that the image reached the expected
+        # status
+        if image['status'] == status:
+            return
+
+        if int(time.time()) - start >= client.build_timeout:
+            message = ('Image %(image_id)s failed to reach %(status)s '
+                       'status within the required time (%(timeout)s s).' %
+                       {'image_id': image_id,
+                        'status': status,
+                        'timeout': client.build_timeout})
+            message += ' Current status: %s.' % image['status']
+            raise exceptions.TimeoutException(message)
diff --git a/tempest/services/compute/json/extensions_client.py b/tempest/services/compute/json/extensions_client.py
index ce46a9b..ad5354c 100644
--- a/tempest/services/compute/json/extensions_client.py
+++ b/tempest/services/compute/json/extensions_client.py
@@ -37,3 +37,8 @@
         _, extensions = self.list_extensions()
         exts = extensions['extensions']
         return any([e for e in exts if e['name'] == extension])
+
+    def get_extension(self, extension_alias):
+        resp, body = self.get('extensions/%s' % extension_alias)
+        body = json.loads(body)
+        return resp, body['extension']
diff --git a/tempest/services/compute/json/images_client.py b/tempest/services/compute/json/images_client.py
index 5f17894..c05571a 100644
--- a/tempest/services/compute/json/images_client.py
+++ b/tempest/services/compute/json/images_client.py
@@ -16,10 +16,10 @@
 #    under the License.
 
 import json
-import time
 import urllib
 
 from tempest.common.rest_client import RestClient
+from tempest.common import waiters
 from tempest import exceptions
 
 
@@ -82,18 +82,7 @@
 
     def wait_for_image_status(self, image_id, status):
         """Waits for an image to reach a given status."""
-        resp, image = self.get_image(image_id)
-        start = int(time.time())
-
-        while image['status'] != status:
-            time.sleep(self.build_interval)
-            resp, image = self.get_image(image_id)
-
-            if image['status'] == 'ERROR':
-                raise exceptions.AddImageException(image_id=image_id)
-
-            if int(time.time()) - start >= self.build_timeout:
-                raise exceptions.TimeoutException
+        waiters.wait_for_image_status(self, image_id, status)
 
     def list_image_metadata(self, image_id):
         """Lists all metadata items for an image."""
diff --git a/tempest/services/compute/v3/json/extensions_client.py b/tempest/services/compute/v3/json/extensions_client.py
index 60c0217..6e0dc9d 100644
--- a/tempest/services/compute/v3/json/extensions_client.py
+++ b/tempest/services/compute/v3/json/extensions_client.py
@@ -38,3 +38,8 @@
         _, extensions = self.list_extensions()
         exts = extensions['extensions']
         return any([e for e in exts if e['name'] == extension])
+
+    def get_extension(self, extension_alias):
+        resp, body = self.get('extensions/%s' % extension_alias)
+        body = json.loads(body)
+        return resp, body['extension']
diff --git a/tempest/services/compute/v3/xml/extensions_client.py b/tempest/services/compute/v3/xml/extensions_client.py
index e03251c..8f97692 100644
--- a/tempest/services/compute/v3/xml/extensions_client.py
+++ b/tempest/services/compute/v3/xml/extensions_client.py
@@ -43,3 +43,8 @@
         _, extensions = self.list_extensions()
         exts = extensions['extensions']
         return any([e for e in exts if e['name'] == extension])
+
+    def get_extension(self, extension_alias):
+        resp, body = self.get('extensions/%s' % extension_alias, self.headers)
+        body = xml_to_json(etree.fromstring(body))
+        return resp, body
diff --git a/tempest/services/compute/xml/extensions_client.py b/tempest/services/compute/xml/extensions_client.py
index 1395b5a..b17fc4f 100644
--- a/tempest/services/compute/xml/extensions_client.py
+++ b/tempest/services/compute/xml/extensions_client.py
@@ -43,3 +43,8 @@
         _, extensions = self.list_extensions()
         exts = extensions['extensions']
         return any([e for e in exts if e['name'] == extension])
+
+    def get_extension(self, extension_alias):
+        resp, body = self.get('extensions/%s' % extension_alias, self.headers)
+        body = xml_to_json(etree.fromstring(body))
+        return resp, body
diff --git a/tempest/services/compute/xml/images_client.py b/tempest/services/compute/xml/images_client.py
index b17ae78..20fcc9b 100644
--- a/tempest/services/compute/xml/images_client.py
+++ b/tempest/services/compute/xml/images_client.py
@@ -15,12 +15,12 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import time
 import urllib
 
 from lxml import etree
 
 from tempest.common.rest_client import RestClientXML
+from tempest.common import waiters
 from tempest import exceptions
 from tempest.services.compute.xml.common import Document
 from tempest.services.compute.xml.common import Element
@@ -140,17 +140,7 @@
 
     def wait_for_image_status(self, image_id, status):
         """Waits for an image to reach a given status."""
-        resp, image = self.get_image(image_id)
-        start = int(time.time())
-
-        while image['status'] != status:
-            time.sleep(self.build_interval)
-            resp, image = self.get_image(image_id)
-            if image['status'] == 'ERROR':
-                raise exceptions.AddImageException(image_id=image_id)
-
-            if int(time.time()) - start >= self.build_timeout:
-                raise exceptions.TimeoutException
+        waiters.wait_for_image_status(self, image_id, status)
 
     def _metadata_body(self, meta):
         post_body = Element('metadata')