diff --git a/HACKING.rst b/HACKING.rst
index 9878b67..499b436 100644
--- a/HACKING.rst
+++ b/HACKING.rst
@@ -2,7 +2,7 @@
 ====================
 
 - Step 1: Read the OpenStack Style Commandments
-  https://github.com/openstack-dev/hacking/blob/master/HACKING.rst
+  http://docs.openstack.org/developer/hacking/
 - Step 2: Read on
 
 Tempest Specific Commandments
diff --git a/run_tests.sh b/run_tests.sh
index 710fbaa..acd9497 100755
--- a/run_tests.sh
+++ b/run_tests.sh
@@ -58,7 +58,7 @@
     -c|--nova-coverage) let nova_coverage=1;;
     -C|--config) config_file=$2; shift;;
     -p|--pep8) let just_pep8=1;;
-    -s|--smoke) testrargs="$testrargs smoke";;
+    -s|--smoke) testrargs+="smoke"; noseargs+="--attr=type=smoke";;
     -t|--serial) serial=1;;
     -l|--logging) logging=1;;
     -L|--logging-config) logging_config=$2; shift;;
diff --git a/tempest/api/compute/admin/test_aggregates.py b/tempest/api/compute/admin/test_aggregates.py
index 40b005d..14ab236 100644
--- a/tempest/api/compute/admin/test_aggregates.py
+++ b/tempest/api/compute/admin/test_aggregates.py
@@ -97,6 +97,38 @@
         self.assertEqual(aggregate['availability_zone'],
                          body['availability_zone'])
 
+    @attr(type='gate')
+    def test_aggregate_create_update_with_az(self):
+        # Update an aggregate and ensure properties are updated correctly
+        self.useFixture(fixtures.LockFixture('availability_zone'))
+        aggregate_name = rand_name(self.aggregate_name_prefix)
+        az_name = rand_name(self.az_name_prefix)
+        resp, aggregate = self.client.create_aggregate(aggregate_name, az_name)
+        self.addCleanup(self.client.delete_aggregate, aggregate['id'])
+
+        self.assertEqual(200, resp.status)
+        self.assertEqual(aggregate_name, aggregate['name'])
+        self.assertEqual(az_name, aggregate['availability_zone'])
+        self.assertIsNotNone(aggregate['id'])
+
+        aggregate_id = aggregate['id']
+        new_aggregate_name = aggregate_name + '_new'
+        new_az_name = az_name + '_new'
+
+        resp, resp_aggregate = self.client.update_aggregate(aggregate_id,
+                                                            new_aggregate_name,
+                                                            new_az_name)
+        self.assertEqual(200, resp.status)
+        self.assertEqual(new_aggregate_name, resp_aggregate['name'])
+        self.assertEqual(new_az_name, resp_aggregate['availability_zone'])
+
+        resp, aggregates = self.client.list_aggregates()
+        self.assertEqual(200, resp.status)
+        self.assertIn((aggregate_id, new_aggregate_name, new_az_name),
+                      map(lambda x:
+                         (x['id'], x['name'], x['availability_zone']),
+                          aggregates))
+
     @attr(type=['negative', 'gate'])
     def test_aggregate_create_as_user(self):
         # Regular user is not allowed to create an aggregate.
diff --git a/tempest/api/orchestration/base.py b/tempest/api/orchestration/base.py
index 2a72c95..7c72991 100644
--- a/tempest/api/orchestration/base.py
+++ b/tempest/api/orchestration/base.py
@@ -31,6 +31,7 @@
         super(BaseOrchestrationTest, cls).setUpClass()
         os = clients.OrchestrationManager()
         cls.orchestration_cfg = os.config.orchestration
+        cls.compute_cfg = os.config.compute
         if not os.config.service_available.heat:
             raise cls.skipException("Heat support is required")
         cls.build_timeout = cls.orchestration_cfg.build_timeout
@@ -40,10 +41,18 @@
         cls.orchestration_client = os.orchestration_client
         cls.servers_client = os.servers_client
         cls.keypairs_client = os.keypairs_client
+        cls.network_client = os.network_client
         cls.stacks = []
         cls.keypairs = []
 
     @classmethod
+    def _get_default_network(cls):
+        resp, networks = cls.network_client.list_networks()
+        for net in networks['networks']:
+            if net['name'] == cls.compute_cfg.fixed_network_name:
+                return net
+
+    @classmethod
     def _get_identity_admin_client(cls):
         """
         Returns an instance of the Identity Admin API client
diff --git a/tempest/api/orchestration/stacks/test_non_empty_stack.py b/tempest/api/orchestration/stacks/test_non_empty_stack.py
index defb910..0ecc5ff 100644
--- a/tempest/api/orchestration/stacks/test_non_empty_stack.py
+++ b/tempest/api/orchestration/stacks/test_non_empty_stack.py
@@ -36,6 +36,8 @@
     Type: String
   ImageId:
     Type: String
+  Subnet:
+    Type: String
 Resources:
   SmokeServer:
     Type: AWS::EC2::Instance
@@ -45,6 +47,7 @@
       ImageId: {Ref: ImageId}
       InstanceType: {Ref: InstanceType}
       KeyName: {Ref: KeyName}
+      SubnetId: {Ref: Subnet}
       UserData:
         Fn::Base64:
           Fn::Join:
@@ -78,13 +81,15 @@
                         cls._create_keypair()['name'])
 
         # create the stack
+        subnet = cls._get_default_network()['subnets'][0]
         cls.stack_identifier = cls.create_stack(
             cls.stack_name,
             cls.template,
             parameters={
                 'KeyName': keypair_name,
                 'InstanceType': cls.orchestration_cfg.instance_type,
-                'ImageId': cls.orchestration_cfg.image_ref
+                'ImageId': cls.orchestration_cfg.image_ref,
+                'Subnet': subnet
             })
         cls.stack_id = cls.stack_identifier.split('/')[1]
         cls.resource_name = 'SmokeServer'
diff --git a/tempest/api/orchestration/stacks/test_server_cfn_init.py b/tempest/api/orchestration/stacks/test_server_cfn_init.py
index 41849d0..d8334fa 100644
--- a/tempest/api/orchestration/stacks/test_server_cfn_init.py
+++ b/tempest/api/orchestration/stacks/test_server_cfn_init.py
@@ -43,6 +43,8 @@
     Type: String
   image:
     Type: String
+  network:
+    Type: String
 Resources:
   CfnUser:
     Type: AWS::IAM::User
@@ -88,6 +90,8 @@
       key_name: {Ref: key_name}
       security_groups:
       - {Ref: SmokeSecurityGroup}
+      networks:
+      - uuid: {Ref: network}
       user_data:
         Fn::Base64:
           Fn::Join:
@@ -142,7 +146,8 @@
             parameters={
                 'key_name': keypair_name,
                 'flavor': cls.orchestration_cfg.instance_type,
-                'image': cls.orchestration_cfg.image_ref
+                'image': cls.orchestration_cfg.image_ref,
+                'network': cls._get_default_network()['id']
             })
 
     @attr(type='slow')
diff --git a/tempest/common/isolated_creds.py b/tempest/common/isolated_creds.py
index 93dec71..8c82ec0 100644
--- a/tempest/common/isolated_creds.py
+++ b/tempest/common/isolated_creds.py
@@ -94,7 +94,9 @@
             for ten in tenants:
                 if ten['name'] == name:
                     tenant = ten
-            raise exceptions.NotFound('No such tenant')
+                    break
+            else:
+                raise exceptions.NotFound('No such tenant')
         return tenant
 
     def _create_user(self, username, password, tenant, email):
diff --git a/tempest/config.py b/tempest/config.py
index 8421c71..eadbe9a 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -182,8 +182,8 @@
                     "succeed."),
     cfg.IntOpt('ready_wait',
                default=0,
-               help="Additinal wait time for clean state, when there is"
-                    " no OS-EXT-STS extension availiable"),
+               help="Additional wait time for clean state, when there is "
+                    "no OS-EXT-STS extension available"),
     cfg.IntOpt('ssh_channel_timeout',
                default=60,
                help="Timeout in seconds to wait for output from ssh "
@@ -273,7 +273,7 @@
     cfg.StrOpt('http_image',
                default='http://download.cirros-cloud.net/0.3.1/'
                'cirros-0.3.1-x86_64-uec.tar.gz',
-               help='http accessable image')
+               help='http accessible image')
 ]
 
 
diff --git a/tempest/scenario/manager.py b/tempest/scenario/manager.py
index c01de83..c4b98d5 100644
--- a/tempest/scenario/manager.py
+++ b/tempest/scenario/manager.py
@@ -656,3 +656,10 @@
     @classmethod
     def _stack_rand_name(cls):
         return rand_name(cls.__name__ + '-')
+
+    @classmethod
+    def _get_default_network(cls):
+        networks = cls.network_client.list_networks()
+        for net in networks['networks']:
+            if net['name'] == cls.config.compute.fixed_network_name:
+                return net
diff --git a/tempest/scenario/orchestration/test_autoscaling.py b/tempest/scenario/orchestration/test_autoscaling.py
index 1a4d802..658e9bb 100644
--- a/tempest/scenario/orchestration/test_autoscaling.py
+++ b/tempest/scenario/orchestration/test_autoscaling.py
@@ -37,11 +37,13 @@
             self.keypair_name = self.keypair.id
 
     def launch_stack(self):
+        net = self._get_default_network()
         self.parameters = {
             'KeyName': self.keypair_name,
             'InstanceType': self.config.orchestration.instance_type,
             'ImageId': self.config.orchestration.image_ref,
-            'StackStart': str(time.time())
+            'StackStart': str(time.time()),
+            'Subnet': net['subnets'][0]
         }
 
         # create the stack
diff --git a/tempest/scenario/orchestration/test_autoscaling.yaml b/tempest/scenario/orchestration/test_autoscaling.yaml
index 045b3bc..745eb05 100644
--- a/tempest/scenario/orchestration/test_autoscaling.yaml
+++ b/tempest/scenario/orchestration/test_autoscaling.yaml
@@ -8,6 +8,8 @@
     Type: String
   ImageId:
     Type: String
+  Subnet:
+    Type: String
   StackStart:
     Description: Epoch seconds when the stack was launched
     Type: Number
@@ -39,6 +41,7 @@
       LaunchConfigurationName: {Ref: LaunchConfig}
       MinSize: '1'
       MaxSize: '3'
+      VPCZoneIdentifier: [{Ref: Subnet}]
   SmokeServerScaleUpPolicy:
     Type: AWS::AutoScaling::ScalingPolicy
     Properties:
diff --git a/tempest/services/compute/json/aggregates_client.py b/tempest/services/compute/json/aggregates_client.py
index 7ae1eee..75ce9ff 100644
--- a/tempest/services/compute/json/aggregates_client.py
+++ b/tempest/services/compute/json/aggregates_client.py
@@ -52,6 +52,19 @@
         body = json.loads(body)
         return resp, body['aggregate']
 
+    def update_aggregate(self, aggregate_id, name, availability_zone=None):
+        """Update a aggregate."""
+        put_body = {
+            'name': name,
+            'availability_zone': availability_zone
+        }
+        put_body = json.dumps({'aggregate': put_body})
+        resp, body = self.put('os-aggregates/%s' % str(aggregate_id),
+                              put_body, self.headers)
+
+        body = json.loads(body)
+        return resp, body['aggregate']
+
     def delete_aggregate(self, aggregate_id):
         """Deletes the given aggregate."""
         return self.delete("os-aggregates/%s" % str(aggregate_id))
diff --git a/tempest/services/compute/xml/aggregates_client.py b/tempest/services/compute/xml/aggregates_client.py
index 0ef8e22..8ef0af6 100644
--- a/tempest/services/compute/xml/aggregates_client.py
+++ b/tempest/services/compute/xml/aggregates_client.py
@@ -72,6 +72,17 @@
         aggregate = self._format_aggregate(etree.fromstring(body))
         return resp, aggregate
 
+    def update_aggregate(self, aggregate_id, name, availability_zone=None):
+        """Update a aggregate."""
+        put_body = Element("aggregate",
+                           name=name,
+                           availability_zone=availability_zone)
+        resp, body = self.put('os-aggregates/%s' % str(aggregate_id),
+                              str(Document(put_body)),
+                              self.headers)
+        aggregate = self._format_aggregate(etree.fromstring(body))
+        return resp, aggregate
+
     def delete_aggregate(self, aggregate_id):
         """Deletes the given aggregate."""
         return self.delete("os-aggregates/%s" % str(aggregate_id),
diff --git a/tempest/stress/driver.py b/tempest/stress/driver.py
index d959543..8209f17 100644
--- a/tempest/stress/driver.py
+++ b/tempest/stress/driver.py
@@ -35,11 +35,14 @@
     username = admin_manager.config.stress.target_ssh_user
     key_filename = admin_manager.config.stress.target_private_key_path
     if not (username and key_filename):
+        LOG.error('username and key_filename should not be empty')
         return None
     ssh_client = ssh.Client(host, username, key_filename=key_filename)
     try:
         return ssh_client.exec_command(command)
     except exceptions.SSHExecCommandFailed:
+        LOG.error('do_ssh raise exception. command:%s, host:%s.'
+                  % (command, host))
         return None
 
 
diff --git a/tempest/thirdparty/boto/test_ec2_instance_run.py b/tempest/thirdparty/boto/test_ec2_instance_run.py
index 486e0a0..bce544a 100644
--- a/tempest/thirdparty/boto/test_ec2_instance_run.py
+++ b/tempest/thirdparty/boto/test_ec2_instance_run.py
@@ -188,13 +188,13 @@
         self.assertEqual(tags[0].value, 'value1')
 
         tags = self.ec2_client.get_all_tags(filters={'key': 'value2'})
-        self.assertEqual(len(tags), 0)
+        self.assertEqual(len(tags), 0, str(tags))
 
         for instance in reservation.instances:
             instance.remove_tag('key1', value='value1')
 
         tags = self.ec2_client.get_all_tags()
-        self.assertEqual(len(tags), 0)
+        self.assertEqual(len(tags), 0, str(tags))
 
         for instance in reservation.instances:
             instance.stop()