diff --git a/cli/__init__.py b/cli/__init__.py
index 5d986c0..7a92260 100644
--- a/cli/__init__.py
+++ b/cli/__init__.py
@@ -71,6 +71,11 @@
         return self.cmd_with_auth(
             'keystone', action, flags, params, admin, fail_ok)
 
+    def glance(self, action, flags='', params='', admin=True, fail_ok=False):
+        """Executes glance command for the given action."""
+        return self.cmd_with_auth(
+            'glance', action, flags, params, admin, fail_ok)
+
     def cmd_with_auth(self, cmd, action, flags='', params='',
                       admin=True, fail_ok=False):
         """Executes given command with auth attributes appended."""
diff --git a/cli/simple_read_only/test_glance.py b/cli/simple_read_only/test_glance.py
new file mode 100644
index 0000000..f9822cc
--- /dev/null
+++ b/cli/simple_read_only/test_glance.py
@@ -0,0 +1,66 @@
+# 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 logging
+import re
+import subprocess
+
+import cli
+
+
+LOG = logging.getLogger(__name__)
+
+
+class SimpleReadOnlyGlanceClientTest(cli.ClientTestBase):
+    """Basic, read-only tests for Glance CLI client.
+
+    Checks return values and output of read-only commands.
+    These tests do not presume any content, nor do they create
+    their own. They only verify the structure of output if present.
+    """
+
+    def test_glance_fake_action(self):
+        self.assertRaises(subprocess.CalledProcessError,
+                          self.glance,
+                          'this-does-not-exist')
+
+    def test_glance_image_list(self):
+        out = self.glance('image-list')
+        endpoints = self.parser.listing(out)
+        self.assertTableStruct(endpoints, [
+            'ID', 'Name', 'Disk Format', 'Container Format',
+            'Size', 'Status'])
+
+    def test_glance_help(self):
+        help_text = self.glance('help')
+        lines = help_text.split('\n')
+        self.assertTrue(lines[0].startswith('usage: glance'))
+
+        commands = []
+        cmds_start = lines.index('Positional arguments:')
+        cmds_end = lines.index('Optional arguments:')
+        command_pattern = re.compile('^ {4}([a-z0-9\-\_]+)')
+        for line in lines[cmds_start:cmds_end]:
+            match = command_pattern.match(line)
+            if match:
+                commands.append(match.group(1))
+        commands = set(commands)
+        wanted_commands = set(('image-create', 'image-delete', 'help',
+                               'image-download', 'image-show', 'image-update',
+                               'member-add', 'member-create', 'member-delete',
+                               'member-list'))
+        self.assertFalse(wanted_commands - commands)
diff --git a/run_tests.sh b/run_tests.sh
index 93edfaf..3f394e3 100755
--- a/run_tests.sh
+++ b/run_tests.sh
@@ -95,14 +95,7 @@
 
 function run_pep8 {
   echo "Running pep8 ..."
-  srcfiles="`find tempest -type f -name "*.py"`"
-  srcfiles+=" `find tools -type f -name "*.py"`"
-  srcfiles+=" `find stress -type f -name "*.py"`"
-  srcfiles+=" setup.py"
-
-  ignore='--ignore=E121,E122,E125,E126'
-
-    ${wrapper} python tools/hacking.py ${ignore} ${srcfiles}
+  ${wrapper} tools/check_source.sh
 }
 
 function run_coverage_start {
diff --git a/tempest/services/compute/json/security_groups_client.py b/tempest/services/compute/json/security_groups_client.py
index 7f430d8..1dc11c4 100644
--- a/tempest/services/compute/json/security_groups_client.py
+++ b/tempest/services/compute/json/security_groups_client.py
@@ -19,6 +19,7 @@
 import urllib
 
 from tempest.common.rest_client import RestClient
+from tempest import exceptions
 
 
 class SecurityGroupsClientJSON(RestClient):
diff --git a/tempest/services/compute/xml/images_client.py b/tempest/services/compute/xml/images_client.py
index 3b01efb..27bb979 100644
--- a/tempest/services/compute/xml/images_client.py
+++ b/tempest/services/compute/xml/images_client.py
@@ -77,6 +77,19 @@
             data['images'].append(self._parse_image(image))
         return data
 
+    def _parse_key_value(self, node):
+        """Parse <foo key='key'>value</foo> data into {'key': 'value'}."""
+        data = {}
+        for node in node.getchildren():
+            data[node.get('key')] = node.text
+        return data
+
+    def _parse_metadata(self, node):
+        """Parse the response body without children."""
+        data = {}
+        data[node.get('key')] = node.text
+        return data
+
     def create_image(self, server_id, name, meta=None):
         """Creates an image of the original server."""
         post_body = Element('createImage', name=name)
@@ -153,51 +166,53 @@
             if int(time.time()) - start >= self.build_timeout:
                 raise exceptions.TimeoutException
 
+    def _metadata_body(self, meta):
+        post_body = Element('metadata')
+        for k, v in meta.items():
+            data = Element('meta', key=k)
+            data.append(Text(v))
+            post_body.append(data)
+        return post_body
+
     def list_image_metadata(self, image_id):
         """Lists all metadata items for an image."""
         resp, body = self.get("images/%s/metadata" % str(image_id),
                               self.headers)
-        body = xml_to_json(etree.fromstring(body))
-        return resp, body['metadata']
-
-    def _metadata_body(image_id, meta):
-        post_body = Document('metadata')
-        for k, v in meta:
-            text = Text(v)
-            metadata = Element('meta', text, key=k)
-            post_body.append(metadata)
-        return post_body
+        body = self._parse_key_value(etree.fromstring(body))
+        return resp, body
 
     def set_image_metadata(self, image_id, meta):
         """Sets the metadata for an image."""
-        post_body = self._metadata_body(image_id, meta)
-        resp, body = self.put('images/%s/metadata' % str(image_id),
-                              post_body, self.headers)
-        body = xml_to_json(etree.fromstring(body))
-        return resp, body['metadata']
+        post_body = self._metadata_body(meta)
+        resp, body = self.put('images/%s/metadata' % image_id,
+                              str(Document(post_body)), self.headers)
+        body = self._parse_key_value(etree.fromstring(body))
+        return resp, body
 
     def update_image_metadata(self, image_id, meta):
         """Updates the metadata for an image."""
-        post_body = self._metadata_body(image_id, meta)
+        post_body = self._metadata_body(meta)
         resp, body = self.post('images/%s/metadata' % str(image_id),
-                               post_body, self.headers)
-        body = xml_to_json(etree.fromstring(body))
-        return resp, body['metadata']
+                               str(Document(post_body)), self.headers)
+        body = self._parse_key_value(etree.fromstring(body))
+        return resp, body
 
     def get_image_metadata_item(self, image_id, key):
         """Returns the value for a specific image metadata key."""
         resp, body = self.get("images/%s/metadata/%s.xml" %
                               (str(image_id), key), self.headers)
-        body = xml_to_json(etree.fromstring(body))
-        return resp, body['meta']
+        body = self._parse_metadata(etree.fromstring(body))
+        return resp, body
 
     def set_image_metadata_item(self, image_id, key, meta):
         """Sets the value for a specific image metadata key."""
-        post_body = Document('meta', Text(meta), key=key)
-        resp, body = self.post('images/%s/metadata/%s' % (str(image_id), key),
-                               post_body, self.headers)
+        for k, v in meta.items():
+            post_body = Element('meta', key=key)
+            post_body.append(Text(v))
+        resp, body = self.put('images/%s/metadata/%s' % (str(image_id), key),
+                              str(Document(post_body)), self.headers)
         body = xml_to_json(etree.fromstring(body))
-        return resp, body['meta']
+        return resp, body
 
     def update_image_metadata_item(self, image_id, key, meta):
         """Sets the value for a specific image metadata key."""
@@ -209,6 +224,5 @@
 
     def delete_image_metadata_item(self, image_id, key):
         """Deletes a single image metadata key/value pair."""
-        resp, body = self.delete("images/%s/metadata/%s" % (str(image_id), key,
-                                 self.headers))
-        return resp, body
+        return self.delete("images/%s/metadata/%s" % (str(image_id), key),
+                           self.headers)
diff --git a/tempest/services/compute/xml/security_groups_client.py b/tempest/services/compute/xml/security_groups_client.py
index 7db60a1..10f1a42 100644
--- a/tempest/services/compute/xml/security_groups_client.py
+++ b/tempest/services/compute/xml/security_groups_client.py
@@ -19,6 +19,7 @@
 import urllib
 
 from tempest.common.rest_client import RestClientXML
+from tempest import exceptions
 from tempest.services.compute.xml.common import Document
 from tempest.services.compute.xml.common import Element
 from tempest.services.compute.xml.common import Text
diff --git a/tempest/services/compute/xml/servers_client.py b/tempest/services/compute/xml/servers_client.py
index 008417b..15dfd74 100644
--- a/tempest/services/compute/xml/servers_client.py
+++ b/tempest/services/compute/xml/servers_client.py
@@ -94,6 +94,11 @@
         json['addresses'] = json_addresses
     else:
         json = xml_to_json(xml_dom)
+    diskConfig = '{http://docs.openstack.org/compute/ext/disk_config/api/v1.1'\
+                 '}diskConfig'
+    if diskConfig in json:
+        json['OS-DCF:diskConfig'] = json[diskConfig]
+        del json[diskConfig]
     return json
 
 
@@ -234,6 +239,11 @@
             if attr in kwargs:
                 server.add_attr(attr, kwargs[attr])
 
+        if 'disk_config' in kwargs:
+            server.add_attr('xmlns:OS-DCF', "http://docs.openstack.org/"
+                            "compute/ext/disk_config/api/v1.1")
+            server.add_attr('OS-DCF:diskConfig', kwargs['disk_config'])
+
         if 'security_groups' in kwargs:
             secgroups = Element("security_groups")
             server.append(secgroups)
@@ -357,6 +367,12 @@
 
     def rebuild(self, server_id, image_ref, **kwargs):
         kwargs['imageRef'] = image_ref
+        if 'disk_config' in kwargs:
+            kwargs['OS-DCF:diskConfig'] = kwargs['disk_config']
+            del kwargs['disk_config']
+            kwargs['xmlns:OS-DCF'] = "http://docs.openstack.org/"\
+                                     "compute/ext/disk_config/api/v1.1"
+            kwargs['xmlns:atom'] = "http://www.w3.org/2005/Atom"
         if 'xmlns' not in kwargs:
             kwargs['xmlns'] = XMLNS_11
 
@@ -381,8 +397,11 @@
 
     def resize(self, server_id, flavor_ref, **kwargs):
         if 'disk_config' in kwargs:
-            raise NotImplementedError("Sorry, disk_config not "
-                                      "supported via XML yet")
+            kwargs['OS-DCF:diskConfig'] = kwargs['disk_config']
+            del kwargs['disk_config']
+            kwargs['xmlns:OS-DCF'] = "http://docs.openstack.org/"\
+                                     "compute/ext/disk_config/api/v1.1"
+            kwargs['xmlns:atom'] = "http://www.w3.org/2005/Atom"
         kwargs['flavorRef'] = flavor_ref
         return self.action(server_id, 'resize', None, **kwargs)
 
diff --git a/tempest/tests/compute/admin/test_flavors.py b/tempest/tests/compute/admin/test_flavors.py
index 7fabf7a..32b06f8 100644
--- a/tempest/tests/compute/admin/test_flavors.py
+++ b/tempest/tests/compute/admin/test_flavors.py
@@ -39,6 +39,7 @@
             raise cls.skipException(msg)
 
         cls.client = cls.os_adm.flavors_client
+        cls.user_client = cls.os.flavors_client
         cls.flavor_name_prefix = 'test_flavor_'
         cls.ram = 512
         cls.vcpus = 1
@@ -315,7 +316,22 @@
                           self.client.list_flavors_with_detail,
                           {'is_public': 'invalid'})
 
-#TODO(afazekas): Negative tests with regular user
+    @attr(type='negative')
+    def test_create_flavor_as_user(self):
+        flavor_name = rand_name(self.flavor_name_prefix)
+        new_flavor_id = rand_int_id(start=1000)
+
+        self.assertRaises(exceptions.Unauthorized,
+                          self.user_client.create_flavor,
+                          flavor_name, self.ram, self.vcpus, self.disk,
+                          new_flavor_id, ephemeral=self.ephemeral,
+                          swap=self.swap, rxtx=self.rxtx)
+
+    @attr(type='negative')
+    def test_delete_flavor_as_user(self):
+        self.assertRaises(exceptions.Unauthorized,
+                          self.user_client.delete_flavor,
+                          self.flavor_ref_alt)
 
 
 class FlavorsAdminTestXML(FlavorsAdminTestJSON):
diff --git a/tempest/tests/compute/images/test_image_metadata.py b/tempest/tests/compute/images/test_image_metadata.py
index 918075c..5d6439b 100644
--- a/tempest/tests/compute/images/test_image_metadata.py
+++ b/tempest/tests/compute/images/test_image_metadata.py
@@ -21,12 +21,12 @@
 from tempest.tests.compute import base
 
 
-class ImagesMetadataTest(base.BaseComputeTest):
+class ImagesMetadataTestJSON(base.BaseComputeTest):
     _interface = 'json'
 
     @classmethod
     def setUpClass(cls):
-        super(ImagesMetadataTest, cls).setUpClass()
+        super(ImagesMetadataTestJSON, cls).setUpClass()
         cls.servers_client = cls.servers_client
         cls.client = cls.images_client
 
@@ -44,10 +44,10 @@
     @classmethod
     def tearDownClass(cls):
         cls.client.delete_image(cls.image_id)
-        super(ImagesMetadataTest, cls).tearDownClass()
+        super(ImagesMetadataTestJSON, cls).tearDownClass()
 
     def setUp(self):
-        super(ImagesMetadataTest, self).setUp()
+        super(ImagesMetadataTestJSON, self).setUp()
         meta = {'key1': 'value1', 'key2': 'value2'}
         resp, _ = self.client.set_image_metadata(self.image_id, meta)
         self.assertEqual(resp.status, 200)
@@ -143,3 +143,7 @@
         # item from nonexistant image
         self.assertRaises(exceptions.NotFound,
                           self.client.delete_image_metadata_item, 999, 'key1')
+
+
+class ImagesMetadataTestXML(ImagesMetadataTestJSON):
+    _interface = 'xml'
diff --git a/tempest/tests/compute/images/test_list_image_filters.py b/tempest/tests/compute/images/test_list_image_filters.py
index 472f7fb..e668aca 100644
--- a/tempest/tests/compute/images/test_list_image_filters.py
+++ b/tempest/tests/compute/images/test_list_image_filters.py
@@ -22,12 +22,12 @@
 from tempest.tests.compute import base
 
 
-class ListImageFiltersTest(base.BaseComputeTest):
+class ListImageFiltersTestJSON(base.BaseComputeTest):
     _interface = 'json'
 
     @classmethod
     def setUpClass(cls):
-        super(ListImageFiltersTest, cls).setUpClass()
+        super(ListImageFiltersTestJSON, cls).setUpClass()
         cls.client = cls.images_client
 
         resp, cls.server1 = cls.create_server()
@@ -65,7 +65,7 @@
         cls.client.delete_image(cls.image1_id)
         cls.client.delete_image(cls.image2_id)
         cls.client.delete_image(cls.image3_id)
-        super(ListImageFiltersTest, cls).tearDownClass()
+        super(ListImageFiltersTestJSON, cls).tearDownClass()
 
     @attr(type='negative')
     def test_get_image_not_existing(self):
@@ -140,7 +140,9 @@
         # Verify only the expected number of results are returned
         params = {'limit': '1'}
         resp, images = self.client.list_images(params)
-        self.assertEqual(1, len(images))
+        #when _interface='xml', one element for images_links in images
+        #ref: Question #224349
+        self.assertEqual(1, len([x for x in images if 'id' in x]))
 
     @attr(type='positive')
     def test_list_images_filter_by_changes_since(self):
@@ -226,3 +228,7 @@
     def test_get_nonexistant_image(self):
         # Negative test: GET on non existant image should fail
         self.assertRaises(exceptions.NotFound, self.client.get_image, 999)
+
+
+class ListImageFiltersTestXML(ListImageFiltersTestJSON):
+    _interface = 'xml'
diff --git a/tempest/tests/compute/images/test_list_images.py b/tempest/tests/compute/images/test_list_images.py
index d583a95..ec9e7bc 100644
--- a/tempest/tests/compute/images/test_list_images.py
+++ b/tempest/tests/compute/images/test_list_images.py
@@ -19,17 +19,17 @@
 from tempest.tests.compute import base
 
 
-class ListImagesTest(base.BaseComputeTest):
+class ListImagesTestJSON(base.BaseComputeTest):
     _interface = 'json'
 
     @classmethod
     def setUpClass(cls):
-        super(ListImagesTest, cls).setUpClass()
+        super(ListImagesTestJSON, cls).setUpClass()
         cls.client = cls.images_client
 
     @classmethod
     def tearDownClass(cls):
-        super(ListImagesTest, cls).tearDownClass()
+        super(ListImagesTestJSON, cls).tearDownClass()
 
     @attr(type='smoke')
     def test_get_image(self):
@@ -50,3 +50,7 @@
         resp, images = self.client.list_images_with_detail()
         found = any([i for i in images if i['id'] == self.image_ref])
         self.assertTrue(found)
+
+
+class ListImagesTestXML(ListImagesTestJSON):
+    _interface = 'xml'
diff --git a/tempest/tests/compute/servers/test_create_server.py b/tempest/tests/compute/servers/test_create_server.py
index aaab9fa..b522992 100644
--- a/tempest/tests/compute/servers/test_create_server.py
+++ b/tempest/tests/compute/servers/test_create_server.py
@@ -33,7 +33,7 @@
 class ServersTestJSON(base.BaseComputeTest):
     _interface = 'json'
     run_ssh = tempest.config.TempestConfig().compute.run_ssh
-    disk_config = None
+    disk_config = 'AUTO'
 
     @classmethod
     def setUpClass(cls):
@@ -118,18 +118,6 @@
 
 
 @attr(type='positive')
-class ServersTestAutoDisk(ServersTestJSON):
-    disk_config = 'AUTO'
-
-    @classmethod
-    def setUpClass(cls):
-        if not compute.DISK_CONFIG_ENABLED:
-            msg = "DiskConfig extension not enabled."
-            raise cls.skipException(msg)
-        super(ServersTestAutoDisk, cls).setUpClass()
-
-
-@attr(type='positive')
 class ServersTestManualDisk(ServersTestJSON):
     disk_config = 'MANUAL'
 
diff --git a/tempest/tests/compute/servers/test_disk_config.py b/tempest/tests/compute/servers/test_disk_config.py
index 2fbb876..fe1c271 100644
--- a/tempest/tests/compute/servers/test_disk_config.py
+++ b/tempest/tests/compute/servers/test_disk_config.py
@@ -22,7 +22,7 @@
 from tempest.tests.compute import base
 
 
-class TestServerDiskConfig(base.BaseComputeTest):
+class ServerDiskConfigTestJSON(base.BaseComputeTest):
     _interface = 'json'
 
     @classmethod
@@ -30,7 +30,7 @@
         if not compute.DISK_CONFIG_ENABLED:
             msg = "DiskConfig extension not enabled."
             raise cls.skipException(msg)
-        super(TestServerDiskConfig, cls).setUpClass()
+        super(ServerDiskConfigTestJSON, cls).setUpClass()
         cls.client = cls.os.servers_client
 
     @attr(type='positive')
@@ -120,3 +120,7 @@
 
         #Delete the server
         resp, body = self.client.delete_server(server['id'])
+
+
+class ServerDiskConfigTestXML(ServerDiskConfigTestJSON):
+    _interface = 'xml'
diff --git a/tempest/tests/compute/servers/test_list_servers_negative.py b/tempest/tests/compute/servers/test_list_servers_negative.py
index 01b11e0..0559206 100644
--- a/tempest/tests/compute/servers/test_list_servers_negative.py
+++ b/tempest/tests/compute/servers/test_list_servers_negative.py
@@ -22,12 +22,12 @@
 from tempest.tests.compute import base
 
 
-class ListServersNegativeTest(base.BaseComputeTest):
+class ListServersNegativeTestJSON(base.BaseComputeTest):
     _interface = 'json'
 
     @classmethod
     def setUpClass(cls):
-        super(ListServersNegativeTest, cls).setUpClass()
+        super(ListServersNegativeTestJSON, cls).setUpClass()
         cls.client = cls.servers_client
         cls.servers = []
 
@@ -138,7 +138,8 @@
         # List servers by specifying limits
         resp, body = self.client.list_servers({'limit': 1})
         self.assertEqual('200', resp['status'])
-        self.assertEqual(1, len(body['servers']))
+        #when _interface='xml', one element for servers_links in servers
+        self.assertEqual(1, len([x for x in body['servers'] if 'id' in x]))
 
     def test_list_servers_by_limits_greater_than_actual_count(self):
         # List servers by specifying a greater value for limit
@@ -187,3 +188,7 @@
                   if srv['id'] in deleted_ids]
         self.assertEqual('200', resp['status'])
         self.assertEqual([], actual)
+
+
+class ListServersNegativeTestXML(ListServersNegativeTestJSON):
+    _interface = 'xml'
diff --git a/tempest/tests/compute/servers/test_server_rescue.py b/tempest/tests/compute/servers/test_server_rescue.py
index 61ba384..29c9944 100644
--- a/tempest/tests/compute/servers/test_server_rescue.py
+++ b/tempest/tests/compute/servers/test_server_rescue.py
@@ -136,8 +136,6 @@
 
     @attr(type='negative')
     def test_rescued_vm_attach_volume(self):
-        client = self.volumes_extensions_client
-
         # Rescue the server
         self.servers_client.rescue_server(self.server_id, self.password)
         self.servers_client.wait_for_server_status(self.server_id, 'RESCUE')
diff --git a/tempest/tests/compute/test_authorization.py b/tempest/tests/compute/test_authorization.py
index 02ea4d4..91cf39f 100644
--- a/tempest/tests/compute/test_authorization.py
+++ b/tempest/tests/compute/test_authorization.py
@@ -23,7 +23,7 @@
 from tempest.tests.compute import base
 
 
-class AuthorizationTest(base.BaseComputeTest):
+class AuthorizationTestJSON(base.BaseComputeTest):
     _interface = 'json'
 
     @classmethod
@@ -32,7 +32,7 @@
             msg = "Need >1 user"
             raise cls.skipException(msg)
 
-        super(AuthorizationTest, cls).setUpClass()
+        super(AuthorizationTestJSON, cls).setUpClass()
 
         cls.client = cls.os.servers_client
         cls.images_client = cls.os.images_client
@@ -71,18 +71,15 @@
 
         name = rand_name('security')
         description = rand_name('description')
-        resp, cls.security_group = \
-        cls.security_client.create_security_group(name, description)
+        resp, cls.security_group = cls.security_client.create_security_group(
+            name, description)
 
         parent_group_id = cls.security_group['id']
         ip_protocol = 'tcp'
         from_port = 22
         to_port = 22
-        resp, cls.rule =\
-        cls.security_client.create_security_group_rule(
-                                        parent_group_id,
-                                        ip_protocol, from_port,
-                                        to_port)
+        resp, cls.rule = cls.security_client.create_security_group_rule(
+            parent_group_id, ip_protocol, from_port, to_port)
 
     @classmethod
     def tearDownClass(cls):
@@ -90,7 +87,7 @@
             cls.images_client.delete_image(cls.image['id'])
             cls.keypairs_client.delete_keypair(cls.keypairname)
             cls.security_client.delete_security_group(cls.security_group['id'])
-        super(AuthorizationTest, cls).tearDownClass()
+        super(AuthorizationTestJSON, cls).tearDownClass()
 
     def test_get_server_for_alt_account_fails(self):
         # A GET request for a server on another user's account should fail
@@ -278,7 +275,7 @@
             self.alt_security_client.base_url = self.saved_base_url
             if resp['status'] is not None:
                 self.alt_security_client.delete_security_group_rule(
-                                        body['id'])  # BUG
+                    body['id'])  # BUG
                 self.fail("Create security group rule request should not "
                           "happen if the tenant id does not match the"
                           " current user")
@@ -352,3 +349,7 @@
         self.assertRaises(exceptions.NotFound,
                           self.alt_client.get_console_output,
                           self.server['id'], 10)
+
+
+class AuthorizationTestXML(AuthorizationTestJSON):
+    _interface = 'xml'
diff --git a/tempest/tests/compute/volumes/test_attach_volume.py b/tempest/tests/compute/volumes/test_attach_volume.py
index 57f1e20..1b52ccf 100644
--- a/tempest/tests/compute/volumes/test_attach_volume.py
+++ b/tempest/tests/compute/volumes/test_attach_volume.py
@@ -91,7 +91,7 @@
             self.assertTrue(self.device in partitions)
 
             self._detach(server['id'], volume['id'])
-            attached = False
+            self.attached = False
 
             self.servers_client.stop(server['id'])
             self.servers_client.wait_for_server_status(server['id'], 'SHUTOFF')
diff --git a/tempest/tests/network/test_network_basic_ops.py b/tempest/tests/network/test_network_basic_ops.py
index 7d0ded3..a38a5c0 100644
--- a/tempest/tests/network/test_network_basic_ops.py
+++ b/tempest/tests/network/test_network_basic_ops.py
@@ -16,9 +16,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from quantumclient.common import exceptions as exc
 from tempest.common.utils.data_utils import rand_name
-from tempest import test
 from tempest.tests.network.common import DeletableRouter
 from tempest.tests.network.common import TestNetworkSmokeCommon
 
diff --git a/tools/check_source.sh b/tools/check_source.sh
new file mode 100755
index 0000000..089ad70
--- /dev/null
+++ b/tools/check_source.sh
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+python tools/hacking.py --ignore=E122,E125,E126 --repeat --show-source --exclude=.venv,.tox,dist,doc,openstack,*egg .
+pep8_ret=$?
+
+pyflakes tempest stress setup.py tools cli bin | grep "imported but unused"
+unused_ret=$?
+
+ret=0
+if [ $pep8_ret != 0 ]; then
+    echo "hacking.py/pep8 test FAILED!" >&2
+    (( ret += 1  ))
+else
+    echo "hacking.py/pep8 test OK!" >&2
+fi
+
+if [ $unused_ret == 0 ]; then
+    echo "Unused import test FAILED!" >&2
+    (( ret += 2  ))
+else
+    echo "Unused import test OK!" >&2
+fi
+
+exit $ret
diff --git a/tools/test-requires b/tools/test-requires
index b799dce..f701dab 100644
--- a/tools/test-requires
+++ b/tools/test-requires
@@ -2,3 +2,4 @@
 pylint==0.19
 #TODO(afazekas): ensure pg_config installed
 psycopg2
+pyflakes
diff --git a/tox.ini b/tox.ini
index 92ce6bc..85a0d86 100644
--- a/tox.ini
+++ b/tox.ini
@@ -19,4 +19,4 @@
            python -m tools/tempest_coverage -c report --html
 
 [testenv:pep8]
-commands = python tools/hacking.py --ignore=E122,E125,E126 --repeat --show-source --exclude=.venv,.tox,dist,doc,openstack,*egg .
+commands = bash tools/check_source.sh