Backup create using force flag

Cinder allows to create a volume backup, whether the volume
status is "available" or "in-use"

Change-Id: Ifec5f0aab766e9dccceea2a81f54d7fc97226d41
diff --git a/tempest/api/volume/admin/test_volumes_backup.py b/tempest/api/volume/admin/test_volumes_backup.py
index 66bab51..b6dc488 100644
--- a/tempest/api/volume/admin/test_volumes_backup.py
+++ b/tempest/api/volume/admin/test_volumes_backup.py
@@ -27,17 +27,17 @@
 CONF = config.CONF
 
 
-class VolumesBackupsV2Test(base.BaseVolumeAdminTest):
+class VolumesBackupsAdminV2Test(base.BaseVolumeAdminTest):
 
     @classmethod
     def skip_checks(cls):
-        super(VolumesBackupsV2Test, cls).skip_checks()
+        super(VolumesBackupsAdminV2Test, cls).skip_checks()
         if not CONF.volume_feature_enabled.backup:
             raise cls.skipException("Cinder backup feature disabled")
 
     @classmethod
     def resource_setup(cls):
-        super(VolumesBackupsV2Test, cls).resource_setup()
+        super(VolumesBackupsAdminV2Test, cls).resource_setup()
 
         cls.volume = cls.create_volume()
 
@@ -167,5 +167,5 @@
                                                          'available')
 
 
-class VolumesBackupsV1Test(VolumesBackupsV2Test):
+class VolumesBackupsAdminV1Test(VolumesBackupsAdminV2Test):
     _api_version = 1
diff --git a/tempest/api/volume/base.py b/tempest/api/volume/base.py
index cd21424..cf37087 100644
--- a/tempest/api/volume/base.py
+++ b/tempest/api/volume/base.py
@@ -72,6 +72,7 @@
         else:
             cls.snapshots_client = cls.os.snapshots_v2_client
             cls.volumes_client = cls.os.volumes_v2_client
+            cls.backups_client = cls.os.backups_v2_client
             cls.volumes_extension_client = cls.os.volumes_v2_extension_client
             cls.availability_zone_client = (
                 cls.os.volume_v2_availability_zone_client)
diff --git a/tempest/api/volume/test_volumes_backup.py b/tempest/api/volume/test_volumes_backup.py
new file mode 100644
index 0000000..87146db
--- /dev/null
+++ b/tempest/api/volume/test_volumes_backup.py
@@ -0,0 +1,72 @@
+# Copyright 2016 Red Hat, Inc.
+# 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.volume import base
+from tempest.common.utils import data_utils
+from tempest.common import waiters
+from tempest import config
+from tempest import test
+
+CONF = config.CONF
+
+
+class VolumesBackupsV2Test(base.BaseVolumeTest):
+
+    @classmethod
+    def skip_checks(cls):
+        super(VolumesBackupsV2Test, cls).skip_checks()
+        if not CONF.volume_feature_enabled.backup:
+            raise cls.skipException("Cinder backup feature disabled")
+
+    @classmethod
+    def resource_setup(cls):
+        super(VolumesBackupsV2Test, cls).resource_setup()
+
+        cls.volume = cls.create_volume()
+
+    @test.idempotent_id('07af8f6d-80af-44c9-a5dc-c8427b1b62e6')
+    @test.services('compute')
+    def test_backup_create_attached_volume(self):
+        """Test backup create using force flag.
+
+        Cinder allows to create a volume backup, whether the volume status
+        is "available" or "in-use".
+        """
+        # Create a server
+        server_name = data_utils.rand_name('instance')
+        server = self.create_server(name=server_name, wait_until='ACTIVE')
+        self.addCleanup(self.servers_client.delete_server, server['id'])
+        # Attach volume to instance
+        self.servers_client.attach_volume(server['id'],
+                                          volumeId=self.volume['id'])
+        waiters.wait_for_volume_status(self.volumes_client,
+                                       self.volume['id'], 'in-use')
+        self.addCleanup(waiters.wait_for_volume_status, self.volumes_client,
+                        self.volume['id'], 'available')
+        self.addCleanup(self.servers_client.detach_volume, server['id'],
+                        self.volume['id'])
+        # Create backup using force flag
+        backup_name = data_utils.rand_name('Backup')
+        backup = self.backups_client.create_backup(
+            volume_id=self.volume['id'],
+            name=backup_name, force=True)['backup']
+        self.addCleanup(self.backups_client.delete_backup, backup['id'])
+        self.backups_client.wait_for_backup_status(backup['id'],
+                                                   'available')
+        self.assertEqual(backup_name, backup['name'])
+
+
+class VolumesBackupsV1Test(VolumesBackupsV2Test):
+    _api_version = 1