Prepare for enabling H302 rule (api/compute)

We can use H302 rule but ignore it now. This commit prepares for
enabling H302 rule. But this commit modifies tempest/api/compute only
and excludes some violations[1] because if we fix all of them at one
time, it's hard to merge this commit.

[1]
 tempest.test.attr
 tempest.common.rest_client.RestClient
 tempest.common.rest_client.RestClientXML
 tempest.services.compute.xml.common.xml_to_json
 tempest.services.compute.xml.common.Element
 tempest.services.compute.xml.common.Document
 tempest.services.compute.xml.common.Text
 tempest.services.compute.xml.common.XMLNS_11
 tempest.services.compute.xml.common.XMLNS_V3
 tempest/clients.py

Change-Id: I582d72543f83e01fe3b9cfa9f7132dfdd36a2225
diff --git a/tempest/api/compute/floating_ips/test_floating_ips_actions.py b/tempest/api/compute/floating_ips/test_floating_ips_actions.py
index 56bd291..ea785b3 100644
--- a/tempest/api/compute/floating_ips/test_floating_ips_actions.py
+++ b/tempest/api/compute/floating_ips/test_floating_ips_actions.py
@@ -14,9 +14,9 @@
 #    under the License.
 
 from tempest.api.compute.floating_ips import base
-from tempest.common.utils.data_utils import rand_name
+from tempest.common.utils import data_utils
 from tempest import exceptions
-from tempest.test import attr
+from tempest import test
 
 
 class FloatingIPsTestJSON(base.BaseFloatingIPsTest):
@@ -44,7 +44,7 @@
         resp, body = cls.client.delete_floating_ip(cls.floating_ip_id)
         super(FloatingIPsTestJSON, cls).tearDownClass()
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_allocate_floating_ip(self):
         # Positive test:Allocation of a new floating IP to a project
         # should be successful
@@ -59,7 +59,7 @@
         resp, body = self.client.list_floating_ips()
         self.assertIn(floating_ip_details, body)
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_delete_floating_ip(self):
         # Positive test:Deletion of valid floating IP from project
         # should be successful
@@ -74,7 +74,7 @@
         # Check it was really deleted.
         self.client.wait_for_resource_deletion(floating_ip_body['id'])
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_associate_disassociate_floating_ip(self):
         # Positive test:Associate and disassociate the provided floating IP
         # to a specific server should be successful
@@ -90,12 +90,12 @@
             self.server_id)
         self.assertEqual(202, resp.status)
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_associate_already_associated_floating_ip(self):
         # positive test:Association of an already associated floating IP
         # to specific server should change the association of the Floating IP
         # Create server so as to use for Multiple association
-        new_name = rand_name('floating_server')
+        new_name = data_utils.rand_name('floating_server')
         resp, body = self.create_test_server(name=new_name)
         self.servers_client.wait_for_server_status(body['id'], 'ACTIVE')
         self.new_server_id = body['id']
diff --git a/tempest/api/compute/servers/test_create_server.py b/tempest/api/compute/servers/test_create_server.py
index 887608f..f705308 100644
--- a/tempest/api/compute/servers/test_create_server.py
+++ b/tempest/api/compute/servers/test_create_server.py
@@ -20,9 +20,9 @@
 
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
-from tempest.common.utils.linux.remote_client import RemoteClient
+from tempest.common.utils.linux import remote_client
 from tempest import config
-from tempest.test import attr
+from tempest import test
 
 CONF = config.CONF
 
@@ -54,14 +54,14 @@
         cls.client.wait_for_server_status(cls.server_initial['id'], 'ACTIVE')
         resp, cls.server = cls.client.get_server(cls.server_initial['id'])
 
-    @attr(type='smoke')
+    @test.attr(type='smoke')
     def test_create_server_response(self):
         # Check that the required fields are returned with values
         self.assertEqual(202, self.resp.status)
         self.assertTrue(self.server_initial['id'] is not None)
         self.assertTrue(self.server_initial['adminPass'] is not None)
 
-    @attr(type='smoke')
+    @test.attr(type='smoke')
     def test_verify_server_details(self):
         # Verify the specified server attributes are set correctly
         self.assertEqual(self.accessIPv4, self.server['accessIPv4'])
@@ -74,7 +74,7 @@
         self.assertEqual(self.flavor_ref, self.server['flavor']['id'])
         self.assertEqual(self.meta, self.server['metadata'])
 
-    @attr(type='smoke')
+    @test.attr(type='smoke')
     def test_list_servers(self):
         # The created server should be in the list of all servers
         resp, body = self.client.list_servers()
@@ -82,7 +82,7 @@
         found = any([i for i in servers if i['id'] == self.server['id']])
         self.assertTrue(found)
 
-    @attr(type='smoke')
+    @test.attr(type='smoke')
     def test_list_servers_with_detail(self):
         # The created server should be in the detailed list of all servers
         resp, body = self.client.list_servers_with_detail()
@@ -91,19 +91,21 @@
         self.assertTrue(found)
 
     @testtools.skipIf(not run_ssh, 'Instance validation tests are disabled.')
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_verify_created_server_vcpus(self):
         # Verify that the number of vcpus reported by the instance matches
         # the amount stated by the flavor
         resp, flavor = self.flavors_client.get_flavor_details(self.flavor_ref)
-        linux_client = RemoteClient(self.server, self.ssh_user, self.password)
+        linux_client = remote_client.RemoteClient(self.server, self.ssh_user,
+                                                  self.password)
         self.assertEqual(flavor['vcpus'], linux_client.get_number_of_vcpus())
 
     @testtools.skipIf(not run_ssh, 'Instance validation tests are disabled.')
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_host_name_is_same_as_server_name(self):
         # Verify the instance host name is the same as the server name
-        linux_client = RemoteClient(self.server, self.ssh_user, self.password)
+        linux_client = remote_client.RemoteClient(self.server, self.ssh_user,
+                                                  self.password)
         self.assertTrue(linux_client.hostname_equals_servername(self.name))
 
 
@@ -136,7 +138,7 @@
         resp, cls.server = cls.client.get_server(cls.server_initial['id'])
 
     @testtools.skipIf(not run_ssh, 'Instance validation tests are disabled.')
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_verify_created_server_ephemeral_disk(self):
         # Verify that the ephemeral disk is created when creating server
 
@@ -196,12 +198,12 @@
                                       adminPass=admin_pass,
                                       flavor=flavor_with_eph_disk_id))
         # Get partition number of server without extra specs.
-        linux_client = RemoteClient(server_no_eph_disk,
-                                    self.ssh_user, self.password)
+        linux_client = remote_client.RemoteClient(server_no_eph_disk,
+                                                  self.ssh_user, self.password)
         partition_num = len(linux_client.get_partitions())
 
-        linux_client = RemoteClient(server_with_eph_disk,
-                                    self.ssh_user, self.password)
+        linux_client = remote_client.RemoteClient(server_with_eph_disk,
+                                                  self.ssh_user, self.password)
         self.assertEqual(partition_num + 1, linux_client.get_partitions())
 
 
diff --git a/tempest/api/compute/servers/test_list_server_filters.py b/tempest/api/compute/servers/test_list_server_filters.py
index 15b7b9e..fc0bb9f 100644
--- a/tempest/api/compute/servers/test_list_server_filters.py
+++ b/tempest/api/compute/servers/test_list_server_filters.py
@@ -18,8 +18,7 @@
 from tempest.common.utils import data_utils
 from tempest import config
 from tempest import exceptions
-from tempest.test import attr
-from tempest.test import skip_because
+from tempest import test
 
 CONF = config.CONF
 
@@ -74,7 +73,7 @@
         cls.fixed_network_name = CONF.compute.fixed_network_name
 
     @utils.skip_unless_attr('multiple_images', 'Only one image found')
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_filter_by_image(self):
         # Filter the list of servers by image
         params = {'image': self.image_ref}
@@ -85,7 +84,7 @@
         self.assertNotIn(self.s2['id'], map(lambda x: x['id'], servers))
         self.assertIn(self.s3['id'], map(lambda x: x['id'], servers))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_filter_by_flavor(self):
         # Filter the list of servers by flavor
         params = {'flavor': self.flavor_ref_alt}
@@ -96,7 +95,7 @@
         self.assertNotIn(self.s2['id'], map(lambda x: x['id'], servers))
         self.assertIn(self.s3['id'], map(lambda x: x['id'], servers))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_filter_by_server_name(self):
         # Filter the list of servers by server name
         params = {'name': self.s1_name}
@@ -107,7 +106,7 @@
         self.assertNotIn(self.s2_name, map(lambda x: x['name'], servers))
         self.assertNotIn(self.s3_name, map(lambda x: x['name'], servers))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_filter_by_server_status(self):
         # Filter the list of servers by server status
         params = {'status': 'active'}
@@ -118,7 +117,7 @@
         self.assertIn(self.s2['id'], map(lambda x: x['id'], servers))
         self.assertIn(self.s3['id'], map(lambda x: x['id'], servers))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_filter_by_shutoff_status(self):
         # Filter the list of servers by server shutoff status
         params = {'status': 'shutoff'}
@@ -135,7 +134,7 @@
         self.assertNotIn(self.s2['id'], map(lambda x: x['id'], servers))
         self.assertNotIn(self.s3['id'], map(lambda x: x['id'], servers))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_filter_by_limit(self):
         # Verify only the expected number of servers are returned
         params = {'limit': 1}
@@ -143,14 +142,14 @@
         # when _interface='xml', one element for servers_links in servers
         self.assertEqual(1, len([x for x in servers['servers'] if 'id' in x]))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_filter_by_zero_limit(self):
         # Verify only the expected number of servers are returned
         params = {'limit': 0}
         resp, servers = self.client.list_servers(params)
         self.assertEqual(0, len(servers['servers']))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_filter_by_exceed_limit(self):
         # Verify only the expected number of servers are returned
         params = {'limit': 100000}
@@ -160,7 +159,7 @@
                          len([x for x in servers['servers'] if 'id' in x]))
 
     @utils.skip_unless_attr('multiple_images', 'Only one image found')
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_detailed_filter_by_image(self):
         # Filter the detailed list of servers by image
         params = {'image': self.image_ref}
@@ -171,7 +170,7 @@
         self.assertNotIn(self.s2['id'], map(lambda x: x['id'], servers))
         self.assertIn(self.s3['id'], map(lambda x: x['id'], servers))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_detailed_filter_by_flavor(self):
         # Filter the detailed list of servers by flavor
         params = {'flavor': self.flavor_ref_alt}
@@ -182,7 +181,7 @@
         self.assertNotIn(self.s2['id'], map(lambda x: x['id'], servers))
         self.assertIn(self.s3['id'], map(lambda x: x['id'], servers))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_detailed_filter_by_server_name(self):
         # Filter the detailed list of servers by server name
         params = {'name': self.s1_name}
@@ -193,7 +192,7 @@
         self.assertNotIn(self.s2_name, map(lambda x: x['name'], servers))
         self.assertNotIn(self.s3_name, map(lambda x: x['name'], servers))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_detailed_filter_by_server_status(self):
         # Filter the detailed list of servers by server status
         params = {'status': 'active'}
@@ -205,7 +204,7 @@
         self.assertIn(self.s3['id'], map(lambda x: x['id'], servers))
         self.assertEqual(['ACTIVE'] * 3, [x['status'] for x in servers])
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_filtered_by_name_wildcard(self):
         # List all servers that contains '-instance' in name
         params = {'name': '-instance'}
@@ -227,8 +226,8 @@
         self.assertNotIn(self.s2_name, map(lambda x: x['name'], servers))
         self.assertNotIn(self.s3_name, map(lambda x: x['name'], servers))
 
-    @skip_because(bug="1170718")
-    @attr(type='gate')
+    @test.skip_because(bug="1170718")
+    @test.attr(type='gate')
     def test_list_servers_filtered_by_ip(self):
         # Filter servers by ip
         # Here should be listed 1 server
@@ -242,9 +241,9 @@
         self.assertNotIn(self.s2_name, map(lambda x: x['name'], servers))
         self.assertNotIn(self.s3_name, map(lambda x: x['name'], servers))
 
-    @skip_because(bug="1182883",
-                  condition=CONF.service_available.neutron)
-    @attr(type='gate')
+    @test.skip_because(bug="1182883",
+                       condition=CONF.service_available.neutron)
+    @test.attr(type='gate')
     def test_list_servers_filtered_by_ip_regex(self):
         # Filter servers by regex ip
         # List all servers filtered by part of ip address.
@@ -259,7 +258,7 @@
         self.assertIn(self.s2_name, map(lambda x: x['name'], servers))
         self.assertIn(self.s3_name, map(lambda x: x['name'], servers))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_detailed_limit_results(self):
         # Verify only the expected number of detailed results are returned
         params = {'limit': 1}
diff --git a/tempest/api/compute/servers/test_server_actions.py b/tempest/api/compute/servers/test_server_actions.py
index f113047..adf522b 100644
--- a/tempest/api/compute/servers/test_server_actions.py
+++ b/tempest/api/compute/servers/test_server_actions.py
@@ -20,11 +20,10 @@
 
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
-from tempest.common.utils.linux.remote_client import RemoteClient
+from tempest.common.utils.linux import remote_client
 from tempest import config
 from tempest import exceptions
-from tempest.test import attr
-from tempest.test import skip_because
+from tempest import test
 
 CONF = config.CONF
 
@@ -53,7 +52,7 @@
 
     @testtools.skipUnless(CONF.compute_feature_enabled.change_password,
                           'Change password not available.')
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_change_server_password(self):
         # The server's password should be set to the provided password
         new_password = 'Newpass1234'
@@ -64,16 +63,18 @@
         if self.run_ssh:
             # Verify that the user can authenticate with the new password
             resp, server = self.client.get_server(self.server_id)
-            linux_client = RemoteClient(server, self.ssh_user, new_password)
+            linux_client = remote_client.RemoteClient(server, self.ssh_user,
+                                                      new_password)
             linux_client.validate_authentication()
 
-    @attr(type='smoke')
+    @test.attr(type='smoke')
     def test_reboot_server_hard(self):
         # The server should be power cycled
         if self.run_ssh:
             # Get the time the server was last rebooted,
             resp, server = self.client.get_server(self.server_id)
-            linux_client = RemoteClient(server, self.ssh_user, self.password)
+            linux_client = remote_client.RemoteClient(server, self.ssh_user,
+                                                      self.password)
             boot_time = linux_client.get_boot_time()
 
         resp, body = self.client.reboot(self.server_id, 'HARD')
@@ -82,19 +83,21 @@
 
         if self.run_ssh:
             # Log in and verify the boot time has changed
-            linux_client = RemoteClient(server, self.ssh_user, self.password)
+            linux_client = remote_client.RemoteClient(server, self.ssh_user,
+                                                      self.password)
             new_boot_time = linux_client.get_boot_time()
             self.assertTrue(new_boot_time > boot_time,
                             '%s > %s' % (new_boot_time, boot_time))
 
-    @skip_because(bug="1014647")
-    @attr(type='smoke')
+    @test.skip_because(bug="1014647")
+    @test.attr(type='smoke')
     def test_reboot_server_soft(self):
         # The server should be signaled to reboot gracefully
         if self.run_ssh:
             # Get the time the server was last rebooted,
             resp, server = self.client.get_server(self.server_id)
-            linux_client = RemoteClient(server, self.ssh_user, self.password)
+            linux_client = remote_client.RemoteClient(server, self.ssh_user,
+                                                      self.password)
             boot_time = linux_client.get_boot_time()
 
         resp, body = self.client.reboot(self.server_id, 'SOFT')
@@ -103,12 +106,13 @@
 
         if self.run_ssh:
             # Log in and verify the boot time has changed
-            linux_client = RemoteClient(server, self.ssh_user, self.password)
+            linux_client = remote_client.RemoteClient(server, self.ssh_user,
+                                                      self.password)
             new_boot_time = linux_client.get_boot_time()
             self.assertTrue(new_boot_time > boot_time,
                             '%s > %s' % (new_boot_time, boot_time))
 
-    @attr(type='smoke')
+    @test.attr(type='smoke')
     def test_rebuild_server(self):
         # The server should be rebuilt using the provided image and data
         meta = {'rebuild': 'server'}
@@ -140,10 +144,11 @@
 
         if self.run_ssh:
             # Verify that the user can authenticate with the provided password
-            linux_client = RemoteClient(server, self.ssh_user, password)
+            linux_client = remote_client.RemoteClient(server, self.ssh_user,
+                                                      password)
             linux_client.validate_authentication()
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_rebuild_server_in_stop_state(self):
         # The server in stop state  should be rebuilt using the provided
         # image and remain in SHUTOFF state
@@ -181,7 +186,7 @@
         return current_flavor, new_flavor_ref
 
     @testtools.skipIf(not resize_available, 'Resize not available.')
-    @attr(type='smoke')
+    @test.attr(type='smoke')
     def test_resize_server_confirm(self):
         # The server's RAM and disk space should be modified to that of
         # the provided flavor
@@ -200,7 +205,7 @@
         self.assertEqual(new_flavor_ref, server['flavor']['id'])
 
     @testtools.skipIf(not resize_available, 'Resize not available.')
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_resize_server_revert(self):
         # The server's RAM and disk space should return to its original
         # values after a resize is reverted
@@ -228,7 +233,7 @@
                 required time (%s s).' % (self.server_id, self.build_timeout)
                 raise exceptions.TimeoutException(message)
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_create_backup(self):
         # Positive test:create backup successfully and rotate backups correctly
         # create the first and the second backup
@@ -313,7 +318,7 @@
         lines = len(output.split('\n'))
         self.assertEqual(lines, 10)
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_get_console_output(self):
         # Positive test:Should be able to GET the console output
         # for a given server_id and number of lines
@@ -329,7 +334,7 @@
 
         self.wait_for(self._get_output)
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_get_console_output_server_id_in_shutoff_status(self):
         # Positive test:Should be able to GET the console output
         # for a given server_id in SHUTOFF status
@@ -346,7 +351,7 @@
 
         self.wait_for(self._get_output)
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_pause_unpause_server(self):
         resp, server = self.client.pause_server(self.server_id)
         self.assertEqual(202, resp.status)
@@ -355,7 +360,7 @@
         self.assertEqual(202, resp.status)
         self.client.wait_for_server_status(self.server_id, 'ACTIVE')
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_suspend_resume_server(self):
         resp, server = self.client.suspend_server(self.server_id)
         self.assertEqual(202, resp.status)
@@ -364,7 +369,7 @@
         self.assertEqual(202, resp.status)
         self.client.wait_for_server_status(self.server_id, 'ACTIVE')
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_shelve_unshelve_server(self):
         resp, server = self.client.shelve_server(self.server_id)
         self.assertEqual(202, resp.status)
@@ -389,7 +394,7 @@
         self.assertEqual(202, resp.status)
         self.client.wait_for_server_status(self.server_id, 'ACTIVE')
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_stop_start_server(self):
         resp, server = self.servers_client.stop(self.server_id)
         self.assertEqual(202, resp.status)
@@ -398,7 +403,7 @@
         self.assertEqual(202, resp.status)
         self.servers_client.wait_for_server_status(self.server_id, 'ACTIVE')
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_lock_unlock_server(self):
         # Lock the server,try server stop(exceptions throw),unlock it and retry
         resp, server = self.servers_client.lock_server(self.server_id)
diff --git a/tempest/api/compute/v3/servers/test_attach_volume.py b/tempest/api/compute/v3/servers/test_attach_volume.py
index d693be5..2edf934 100644
--- a/tempest/api/compute/v3/servers/test_attach_volume.py
+++ b/tempest/api/compute/v3/servers/test_attach_volume.py
@@ -16,9 +16,9 @@
 import testtools
 
 from tempest.api.compute import base
-from tempest.common.utils.linux.remote_client import RemoteClient
+from tempest.common.utils.linux import remote_client
 from tempest import config
-from tempest.test import attr
+from tempest import test
 
 CONF = config.CONF
 
@@ -78,7 +78,7 @@
         self.addCleanup(self._detach, server['id'], volume['id'])
 
     @testtools.skipIf(not run_ssh, 'SSH required for this test')
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_attach_detach_volume(self):
         # Stop and Start a server with an attached volume, ensuring that
         # the volume remains attached.
@@ -92,9 +92,8 @@
         self.servers_client.start(server['id'])
         self.servers_client.wait_for_server_status(server['id'], 'ACTIVE')
 
-        linux_client = RemoteClient(server,
-                                    self.image_ssh_user,
-                                    server['admin_password'])
+        linux_client = remote_client.RemoteClient(server, self.image_ssh_user,
+                                                  server['admin_password'])
         partitions = linux_client.get_partitions()
         self.assertIn(self.device, partitions)
 
@@ -107,8 +106,7 @@
         self.servers_client.start(server['id'])
         self.servers_client.wait_for_server_status(server['id'], 'ACTIVE')
 
-        linux_client = RemoteClient(server,
-                                    self.image_ssh_user,
-                                    server['admin_password'])
+        linux_client = remote_client.RemoteClient(server, self.image_ssh_user,
+                                                  server['admin_password'])
         partitions = linux_client.get_partitions()
         self.assertNotIn(self.device, partitions)
diff --git a/tempest/api/compute/v3/servers/test_create_server.py b/tempest/api/compute/v3/servers/test_create_server.py
index 7a4c877..0825381 100644
--- a/tempest/api/compute/v3/servers/test_create_server.py
+++ b/tempest/api/compute/v3/servers/test_create_server.py
@@ -20,7 +20,7 @@
 
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
-from tempest.common.utils.linux.remote_client import RemoteClient
+from tempest.common.utils.linux import remote_client
 from tempest import config
 from tempest import test
 
@@ -95,7 +95,8 @@
     @test.attr(type='gate')
     def test_can_log_into_created_server(self):
         # Check that the user can authenticate with the generated password
-        linux_client = RemoteClient(self.server, self.ssh_user, self.password)
+        linux_client = remote_client.RemoteClient(self.server,
+                                                  self.ssh_user, self.password)
         self.assertTrue(linux_client.can_authenticate())
 
     @testtools.skipIf(not run_ssh, 'Instance validation tests are disabled.')
@@ -104,14 +105,16 @@
         # Verify that the number of vcpus reported by the instance matches
         # the amount stated by the flavor
         resp, flavor = self.flavors_client.get_flavor_details(self.flavor_ref)
-        linux_client = RemoteClient(self.server, self.ssh_user, self.password)
+        linux_client = remote_client.RemoteClient(self.server,
+                                                  self.ssh_user, self.password)
         self.assertEqual(flavor['vcpus'], linux_client.get_number_of_vcpus())
 
     @testtools.skipIf(not run_ssh, 'Instance validation tests are disabled.')
     @test.attr(type='gate')
     def test_host_name_is_same_as_server_name(self):
         # Verify the instance host name is the same as the server name
-        linux_client = RemoteClient(self.server, self.ssh_user, self.password)
+        linux_client = remote_client.RemoteClient(self.server,
+                                                  self.ssh_user, self.password)
         self.assertTrue(linux_client.hostname_equals_servername(self.name))
 
 
@@ -204,12 +207,12 @@
                                       adminPass=admin_pass,
                                       flavor=flavor_with_eph_disk_id))
         # Get partition number of server without extra specs.
-        linux_client = RemoteClient(server_no_eph_disk,
-                                    self.ssh_user, self.password)
+        linux_client = remote_client.RemoteClient(server_no_eph_disk,
+                                                  self.ssh_user, self.password)
         partition_num = len(linux_client.get_partitions())
 
-        linux_client = RemoteClient(server_with_eph_disk,
-                                    self.ssh_user, self.password)
+        linux_client = remote_client.RemoteClient(server_with_eph_disk,
+                                                  self.ssh_user, self.password)
         self.assertEqual(partition_num + 1, linux_client.get_partitions())
 
 
diff --git a/tempest/api/compute/v3/servers/test_list_server_filters.py b/tempest/api/compute/v3/servers/test_list_server_filters.py
index 9082eda..e08125b 100644
--- a/tempest/api/compute/v3/servers/test_list_server_filters.py
+++ b/tempest/api/compute/v3/servers/test_list_server_filters.py
@@ -18,8 +18,7 @@
 from tempest.common.utils import data_utils
 from tempest import config
 from tempest import exceptions
-from tempest.test import attr
-from tempest.test import skip_because
+from tempest import test
 
 CONF = config.CONF
 
@@ -74,7 +73,7 @@
         cls.fixed_network_name = CONF.compute.fixed_network_name
 
     @utils.skip_unless_attr('multiple_images', 'Only one image found')
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_filter_by_image(self):
         # Filter the list of servers by image
         params = {'image': self.image_ref}
@@ -85,7 +84,7 @@
         self.assertNotIn(self.s2['id'], map(lambda x: x['id'], servers))
         self.assertIn(self.s3['id'], map(lambda x: x['id'], servers))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_filter_by_flavor(self):
         # Filter the list of servers by flavor
         params = {'flavor': self.flavor_ref_alt}
@@ -96,7 +95,7 @@
         self.assertNotIn(self.s2['id'], map(lambda x: x['id'], servers))
         self.assertIn(self.s3['id'], map(lambda x: x['id'], servers))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_filter_by_server_name(self):
         # Filter the list of servers by server name
         params = {'name': self.s1_name}
@@ -107,7 +106,7 @@
         self.assertNotIn(self.s2_name, map(lambda x: x['name'], servers))
         self.assertNotIn(self.s3_name, map(lambda x: x['name'], servers))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_filter_by_server_status(self):
         # Filter the list of servers by server status
         params = {'status': 'active'}
@@ -118,21 +117,21 @@
         self.assertIn(self.s2['id'], map(lambda x: x['id'], servers))
         self.assertIn(self.s3['id'], map(lambda x: x['id'], servers))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_filter_by_limit(self):
         # Verify only the expected number of servers are returned
         params = {'limit': 1}
         resp, servers = self.client.list_servers(params)
         self.assertEqual(1, len([x for x in servers['servers'] if 'id' in x]))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_filter_by_zero_limit(self):
         # Verify only the expected number of servers are returned
         params = {'limit': 0}
         resp, servers = self.client.list_servers(params)
         self.assertEqual(0, len(servers['servers']))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_filter_by_exceed_limit(self):
         # Verify only the expected number of servers are returned
         params = {'limit': 100000}
@@ -142,7 +141,7 @@
                          len([x for x in servers['servers'] if 'id' in x]))
 
     @utils.skip_unless_attr('multiple_images', 'Only one image found')
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_detailed_filter_by_image(self):
         # Filter the detailed list of servers by image
         params = {'image': self.image_ref}
@@ -153,7 +152,7 @@
         self.assertNotIn(self.s2['id'], map(lambda x: x['id'], servers))
         self.assertIn(self.s3['id'], map(lambda x: x['id'], servers))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_detailed_filter_by_flavor(self):
         # Filter the detailed list of servers by flavor
         params = {'flavor': self.flavor_ref_alt}
@@ -164,7 +163,7 @@
         self.assertNotIn(self.s2['id'], map(lambda x: x['id'], servers))
         self.assertIn(self.s3['id'], map(lambda x: x['id'], servers))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_detailed_filter_by_server_name(self):
         # Filter the detailed list of servers by server name
         params = {'name': self.s1_name}
@@ -175,7 +174,7 @@
         self.assertNotIn(self.s2_name, map(lambda x: x['name'], servers))
         self.assertNotIn(self.s3_name, map(lambda x: x['name'], servers))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_detailed_filter_by_server_status(self):
         # Filter the detailed list of servers by server status
         params = {'status': 'active'}
@@ -188,7 +187,7 @@
         self.assertIn(self.s3['id'], map(lambda x: x['id'], servers))
         self.assertEqual(['ACTIVE'] * 3, [x['status'] for x in servers])
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_filter_by_shutoff_status(self):
         # Filter the list of servers by server shutoff status
         params = {'status': 'shutoff'}
@@ -205,7 +204,7 @@
         self.assertNotIn(self.s2['id'], map(lambda x: x['id'], servers))
         self.assertNotIn(self.s3['id'], map(lambda x: x['id'], servers))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_filtered_by_name_wildcard(self):
         # List all servers that contains '-instance' in name
         params = {'name': '-instance'}
@@ -227,8 +226,8 @@
         self.assertNotIn(self.s2_name, map(lambda x: x['name'], servers))
         self.assertNotIn(self.s3_name, map(lambda x: x['name'], servers))
 
-    @skip_because(bug="1170718")
-    @attr(type='gate')
+    @test.skip_because(bug="1170718")
+    @test.attr(type='gate')
     def test_list_servers_filtered_by_ip(self):
         # Filter servers by ip
         # Here should be listed 1 server
@@ -242,9 +241,9 @@
         self.assertNotIn(self.s2_name, map(lambda x: x['name'], servers))
         self.assertNotIn(self.s3_name, map(lambda x: x['name'], servers))
 
-    @skip_because(bug="1182883",
-                  condition=CONF.service_available.neutron)
-    @attr(type='gate')
+    @test.skip_because(bug="1182883",
+                       condition=CONF.service_available.neutron)
+    @test.attr(type='gate')
     def test_list_servers_filtered_by_ip_regex(self):
         # Filter servers by regex ip
         # List all servers filtered by part of ip address.
@@ -259,7 +258,7 @@
         self.assertIn(self.s2_name, map(lambda x: x['name'], servers))
         self.assertIn(self.s3_name, map(lambda x: x['name'], servers))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_list_servers_detailed_limit_results(self):
         # Verify only the expected number of detailed results are returned
         params = {'limit': 1}
diff --git a/tempest/api/compute/v3/servers/test_server_actions.py b/tempest/api/compute/v3/servers/test_server_actions.py
index 0dae796..6584b93 100644
--- a/tempest/api/compute/v3/servers/test_server_actions.py
+++ b/tempest/api/compute/v3/servers/test_server_actions.py
@@ -19,11 +19,10 @@
 
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
-from tempest.common.utils.linux.remote_client import RemoteClient
+from tempest.common.utils.linux import remote_client
 from tempest import config
 from tempest import exceptions
-from tempest.test import attr
-from tempest.test import skip_because
+from tempest import test
 
 CONF = config.CONF
 
@@ -52,7 +51,7 @@
 
     @testtools.skipUnless(CONF.compute_feature_enabled.change_password,
                           'Change password not available.')
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_change_server_password(self):
         # The server's password should be set to the provided password
         new_password = 'Newpass1234'
@@ -63,16 +62,18 @@
         if self.run_ssh:
             # Verify that the user can authenticate with the new password
             resp, server = self.client.get_server(self.server_id)
-            linux_client = RemoteClient(server, self.ssh_user, new_password)
+            linux_client = remote_client.RemoteClient(server, self.ssh_user,
+                                                      new_password)
             linux_client.validate_authentication()
 
-    @attr(type='smoke')
+    @test.attr(type='smoke')
     def test_reboot_server_hard(self):
         # The server should be power cycled
         if self.run_ssh:
             # Get the time the server was last rebooted,
             resp, server = self.client.get_server(self.server_id)
-            linux_client = RemoteClient(server, self.ssh_user, self.password)
+            linux_client = remote_client.RemoteClient(server, self.ssh_user,
+                                                      self.password)
             boot_time = linux_client.get_boot_time()
 
         resp, body = self.client.reboot(self.server_id, 'HARD')
@@ -81,18 +82,20 @@
 
         if self.run_ssh:
             # Log in and verify the boot time has changed
-            linux_client = RemoteClient(server, self.ssh_user, self.password)
+            linux_client = remote_client.RemoteClient(server, self.ssh_user,
+                                                      self.password)
             new_boot_time = linux_client.get_boot_time()
             self.assertGreater(new_boot_time, boot_time)
 
-    @skip_because(bug="1014647")
-    @attr(type='smoke')
+    @test.skip_because(bug="1014647")
+    @test.attr(type='smoke')
     def test_reboot_server_soft(self):
         # The server should be signaled to reboot gracefully
         if self.run_ssh:
             # Get the time the server was last rebooted,
             resp, server = self.client.get_server(self.server_id)
-            linux_client = RemoteClient(server, self.ssh_user, self.password)
+            linux_client = remote_client.RemoteClient(server, self.ssh_user,
+                                                      self.password)
             boot_time = linux_client.get_boot_time()
 
         resp, body = self.client.reboot(self.server_id, 'SOFT')
@@ -101,11 +104,12 @@
 
         if self.run_ssh:
             # Log in and verify the boot time has changed
-            linux_client = RemoteClient(server, self.ssh_user, self.password)
+            linux_client = remote_client.RemoteClient(server, self.ssh_user,
+                                                      self.password)
             new_boot_time = linux_client.get_boot_time()
             self.assertGreater(new_boot_time, boot_time)
 
-    @attr(type='smoke')
+    @test.attr(type='smoke')
     def test_rebuild_server(self):
         # The server should be rebuilt using the provided image and data
         meta = {'rebuild': 'server'}
@@ -133,10 +137,11 @@
 
         if self.run_ssh:
             # Verify that the user can authenticate with the provided password
-            linux_client = RemoteClient(server, self.ssh_user, password)
+            linux_client = remote_client.RemoteClient(server, self.ssh_user,
+                                                      password)
             linux_client.validate_authentication()
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_rebuild_server_in_stop_state(self):
         # The server in stop state  should be rebuilt using the provided
         # image and remain in SHUTOFF state
@@ -174,7 +179,7 @@
         return current_flavor, new_flavor_ref
 
     @testtools.skipIf(not resize_available, 'Resize not available.')
-    @attr(type='smoke')
+    @test.attr(type='smoke')
     def test_resize_server_confirm(self):
         # The server's RAM and disk space should be modified to that of
         # the provided flavor
@@ -193,7 +198,7 @@
         self.assertEqual(new_flavor_ref, server['flavor']['id'])
 
     @testtools.skipIf(not resize_available, 'Resize not available.')
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_resize_server_revert(self):
         # The server's RAM and disk space should return to its original
         # values after a resize is reverted
@@ -221,7 +226,7 @@
                 required time (%s s).' % (self.server_id, self.build_timeout)
                 raise exceptions.TimeoutException(message)
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_create_backup(self):
         # Positive test:create backup successfully and rotate backups correctly
         # create the first and the second backup
@@ -303,7 +308,7 @@
         lines = len(output.split('\n'))
         self.assertEqual(lines, 10)
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_get_console_output(self):
         # Positive test:Should be able to GET the console output
         # for a given server_id and number of lines
@@ -319,7 +324,7 @@
 
         self.wait_for(self._get_output)
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_get_console_output_server_id_in_shutoff_status(self):
         # Positive test:Should be able to GET the console output
         # for a given server_id in SHUTOFF status
@@ -336,7 +341,7 @@
 
         self.wait_for(self._get_output)
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_pause_unpause_server(self):
         resp, server = self.client.pause_server(self.server_id)
         self.assertEqual(202, resp.status)
@@ -345,7 +350,7 @@
         self.assertEqual(202, resp.status)
         self.client.wait_for_server_status(self.server_id, 'ACTIVE')
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_suspend_resume_server(self):
         resp, server = self.client.suspend_server(self.server_id)
         self.assertEqual(202, resp.status)
@@ -354,7 +359,7 @@
         self.assertEqual(202, resp.status)
         self.client.wait_for_server_status(self.server_id, 'ACTIVE')
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_shelve_unshelve_server(self):
         resp, server = self.client.shelve_server(self.server_id)
         self.assertEqual(202, resp.status)
@@ -378,7 +383,7 @@
         self.assertEqual(202, resp.status)
         self.client.wait_for_server_status(self.server_id, 'ACTIVE')
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_stop_start_server(self):
         resp, server = self.servers_client.stop(self.server_id)
         self.assertEqual(202, resp.status)
@@ -387,7 +392,7 @@
         self.assertEqual(202, resp.status)
         self.servers_client.wait_for_server_status(self.server_id, 'ACTIVE')
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_lock_unlock_server(self):
         # Lock the server,try server stop(exceptions throw),unlock it and retry
         resp, server = self.servers_client.lock_server(self.server_id)
diff --git a/tempest/api/compute/volumes/test_attach_volume.py b/tempest/api/compute/volumes/test_attach_volume.py
index 8d8e3ec..7a60196 100644
--- a/tempest/api/compute/volumes/test_attach_volume.py
+++ b/tempest/api/compute/volumes/test_attach_volume.py
@@ -16,9 +16,9 @@
 import testtools
 
 from tempest.api.compute import base
-from tempest.common.utils.linux.remote_client import RemoteClient
+from tempest.common.utils.linux import remote_client
 from tempest import config
-from tempest.test import attr
+from tempest import test
 
 CONF = config.CONF
 
@@ -78,7 +78,7 @@
         self.addCleanup(self._detach, server['id'], volume['id'])
 
     @testtools.skipIf(not run_ssh, 'SSH required for this test')
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_attach_detach_volume(self):
         # Stop and Start a server with an attached volume, ensuring that
         # the volume remains attached.
@@ -92,8 +92,8 @@
         self.servers_client.start(server['id'])
         self.servers_client.wait_for_server_status(server['id'], 'ACTIVE')
 
-        linux_client = RemoteClient(server,
-                                    self.image_ssh_user, server['adminPass'])
+        linux_client = remote_client.RemoteClient(server, self.image_ssh_user,
+                                                  server['adminPass'])
         partitions = linux_client.get_partitions()
         self.assertIn(self.device, partitions)
 
@@ -106,8 +106,8 @@
         self.servers_client.start(server['id'])
         self.servers_client.wait_for_server_status(server['id'], 'ACTIVE')
 
-        linux_client = RemoteClient(server,
-                                    self.image_ssh_user, server['adminPass'])
+        linux_client = remote_client.RemoteClient(server, self.image_ssh_user,
+                                                  server['adminPass'])
         partitions = linux_client.get_partitions()
         self.assertNotIn(self.device, partitions)
 
diff --git a/tempest/api/compute/volumes/test_volumes_get.py b/tempest/api/compute/volumes/test_volumes_get.py
index bcab891..73e3b3a 100644
--- a/tempest/api/compute/volumes/test_volumes_get.py
+++ b/tempest/api/compute/volumes/test_volumes_get.py
@@ -16,8 +16,8 @@
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
 from tempest import config
-from tempest.test import attr
-from testtools.matchers import ContainsAll
+from tempest import test
+from testtools import matchers
 
 CONF = config.CONF
 
@@ -34,7 +34,7 @@
             skip_msg = ("%s skipped as Cinder is not available" % cls.__name__)
             raise cls.skipException(skip_msg)
 
-    @attr(type='smoke')
+    @test.attr(type='smoke')
     def test_volume_create_get_delete(self):
         # CREATE, GET, DELETE Volume
         volume = None
@@ -68,7 +68,7 @@
                          'The fetched Volume is different '
                          'from the created Volume')
         self.assertThat(fetched_volume['metadata'].items(),
-                        ContainsAll(metadata.items()),
+                        matchers.ContainsAll(metadata.items()),
                         'The fetched Volume metadata misses data '
                         'from the created Volume')