Replace cinder delete volume with shade client.

Function delete volume now uses shade client.

JIRA: YARDSTICK-891

Change-Id: I016e1d3bf5972879cad176b56c7282e35413945e
Signed-off-by: Shobhi Jain <shobhi.jain@intel.com>
(cherry picked from commit 4c672aa7012a530806a2f8ff2d45a8badb7f7b21)

5 files changed, 98 insertions, 44 deletions

diff --git a/yardstick/benchmark/scenarios/lib/delete_volume.py b/yardstick/benchmark/scenarios/lib/delete_volume.py
index ea2b85812..59e19dfdf 100644
--- a/yardstick/benchmark/scenarios/lib/delete_volume.py
+++ b/yardstick/benchmark/scenarios/lib/delete_volume.py
@@ -6,14 +6,11 @@
 # which accompanies this distribution, and is available at
 # http://www.apache.org/licenses/LICENSE-2.0
 ##############################################################################
-
-from __future__ import print_function
-from __future__ import absolute_import
-
 import logging
 
+from yardstick.common import openstack_utils
+from yardstick.common import exceptions
 from yardstick.benchmark.scenarios import base
-import yardstick.common.openstack_utils as op_utils
 
 LOG = logging.getLogger(__name__)
 
@@ -26,11 +23,13 @@ class DeleteVolume(base.Scenario):
     def __init__(self, scenario_cfg, context_cfg):
         self.scenario_cfg = scenario_cfg
         self.context_cfg = context_cfg
-        self.options = self.scenario_cfg['options']
+        self.options = self.scenario_cfg["options"]
 
-        self.volume_id = self.options.get("volume_id", None)
+        self.volume_name_or_id = self.options.get("name_or_id")
+        self.wait = self.options.get("wait", True)
+        self.timeout = self.options.get("timeout")
 
-        self.cinder_client = op_utils.get_cinder_client()
+        self.shade_client = openstack_utils.get_shade_client()
 
         self.setup_done = False
 
@@ -45,11 +44,14 @@ class DeleteVolume(base.Scenario):
         if not self.setup_done:
             self.setup()
 
-        status = op_utils.delete_volume(self.cinder_client, self.volume_id)
+        status = openstack_utils.delete_volume(
+            self.shade_client, name_or_id=self.volume_name_or_id,
+            wait=self.wait, timeout=self.timeout)
 
-        if status:
-            result.update({"delete_volume": 1})
-            LOG.info("Delete volume successful!")
-        else:
+        if not status:
             result.update({"delete_volume": 0})
-            LOG.info("Delete volume failed!")
+            LOG.error("Delete volume failed!")
+            raise exceptions.ScenarioDeleteVolumeError
+
+        result.update({"delete_volume": 1})
+        LOG.info("Delete volume successful!")
diff --git a/yardstick/common/exceptions.py b/yardstick/common/exceptions.py
index c6bae444e..1ddd88432 100644
--- a/yardstick/common/exceptions.py
+++ b/yardstick/common/exceptions.py
@@ -250,6 +250,10 @@ class ScenarioCreateVolumeError(YardstickException):
     message = 'Cinder Create Volume Scenario failed'
 
 
+class ScenarioDeleteVolumeError(YardstickException):
+    message = 'Cinder Delete Volume Scenario failed'
+
+
 class ApiServerError(YardstickException):
     message = 'An unkown exception happened to Api Server!'
 
diff --git a/yardstick/common/openstack_utils.py b/yardstick/common/openstack_utils.py
index 1c4ad77e5..a9d833fff 100644
--- a/yardstick/common/openstack_utils.py
+++ b/yardstick/common/openstack_utils.py
@@ -8,7 +8,6 @@
 ##############################################################################
 
 import os
-import sys
 import logging
 
 from keystoneauth1 import loading
@@ -807,24 +806,21 @@ def create_volume(shade_client, size, wait=True, timeout=None,
                   "Exception message: %s", op_exc.orig_message)
 
 
-def delete_volume(cinder_client, volume_id,
-                  forced=False):      # pragma: no cover
+def delete_volume(shade_client, name_or_id=None, wait=True, timeout=None):
+    """Delete a volume.
+
+    :param name_or_id:(string) Name or unique ID of the volume.
+    :param wait:(bool) If true, waits for volume to be deleted.
+    :param timeout:(string) Seconds to wait for volume deletion. None is forever.
+
+    :return:  True on success, False otherwise.
+    """
     try:
-        if forced:
-            try:
-                cinder_client.volumes.detach(volume_id)
-            except Exception:  # pylint: disable=broad-except
-                log.error(sys.exc_info()[0])
-            cinder_client.volumes.force_delete(volume_id)
-        else:
-            while True:
-                volume = get_cinder_client().volumes.get(volume_id)
-                if volume.status.lower() == 'available':
-                    break
-            cinder_client.volumes.delete(volume_id)
-        return True
-    except Exception:  # pylint: disable=broad-except
-        log.exception("Error [delete_volume(cinder_client, '%s')]", volume_id)
+        return shade_client.delete_volume(name_or_id=name_or_id,
+                                          wait=wait, timeout=timeout)
+    except (exc.OpenStackCloudException, exc.OpenStackCloudTimeout) as o_exc:
+        log.error("Error [delete_volume(shade_client,'%s')]. "
+                  "Exception message: %s", name_or_id, o_exc.orig_message)
         return False
 
 
diff --git a/yardstick/tests/unit/benchmark/scenarios/lib/test_delete_volume.py b/yardstick/tests/unit/benchmark/scenarios/lib/test_delete_volume.py
index 93f76e819..0db16f396 100644
--- a/yardstick/tests/unit/benchmark/scenarios/lib/test_delete_volume.py
+++ b/yardstick/tests/unit/benchmark/scenarios/lib/test_delete_volume.py
@@ -9,19 +9,44 @@
 import unittest
 import mock
 
-from yardstick.benchmark.scenarios.lib.delete_volume import DeleteVolume
+from yardstick.common import openstack_utils
+from yardstick.common import exceptions
+from yardstick.benchmark.scenarios.lib import delete_volume
 
 
 class DeleteVolumeTestCase(unittest.TestCase):
 
-    @mock.patch('yardstick.common.openstack_utils.get_cinder_client')
-    @mock.patch('yardstick.common.openstack_utils.delete_volume')
-    def test_delete_volume(self, mock_get_cinder_client, mock_delete_volume):
-        options = {
-            'volume_id': '123-123-123'
-        }
-        args = {"options": options}
-        obj = DeleteVolume(args, {})
-        obj.run({})
-        mock_get_cinder_client.assert_called_once()
-        mock_delete_volume.assert_called_once()
+    def setUp(self):
+        self._mock_delete_volume = mock.patch.object(
+            openstack_utils, 'delete_volume')
+        self.mock_delete_volume = (
+            self._mock_delete_volume.start())
+        self._mock_get_shade_client = mock.patch.object(
+            openstack_utils, 'get_shade_client')
+        self.mock_get_shade_client = self._mock_get_shade_client.start()
+        self._mock_log = mock.patch.object(delete_volume, 'LOG')
+        self.mock_log = self._mock_log.start()
+        self.args = {'options': {'name_or_id': 'yardstick_volume'}}
+        self.result = {}
+
+        self.delvol_obj = delete_volume.DeleteVolume(self.args, mock.ANY)
+
+        self.addCleanup(self._stop_mock)
+
+    def _stop_mock(self):
+        self._mock_delete_volume.stop()
+        self._mock_get_shade_client.stop()
+        self._mock_log.stop()
+
+    def test_run(self):
+        self.mock_delete_volume.return_value = True
+        self.assertIsNone(self.delvol_obj.run(self.result))
+        self.assertEqual({'delete_volume': 1}, self.result)
+        self.mock_log.info.assert_called_once_with('Delete volume successful!')
+
+    def test_run_fail(self):
+        self.mock_delete_volume.return_value = False
+        with self.assertRaises(exceptions.ScenarioDeleteVolumeError):
+            self.delvol_obj.run(self.result)
+        self.assertEqual({'delete_volume': 0}, self.result)
+        self.mock_log.error.assert_called_once_with('Delete volume failed!')
diff --git a/yardstick/tests/unit/common/test_openstack_utils.py b/yardstick/tests/unit/common/test_openstack_utils.py
index c17daada6..6497f664e 100644
--- a/yardstick/tests/unit/common/test_openstack_utils.py
+++ b/yardstick/tests/unit/common/test_openstack_utils.py
@@ -577,3 +577,30 @@ class CreateVolumeTestCase(unittest.TestCase):
                                                self.size)
         mock_logger.error.assert_called_once()
         self.assertIsNone(output)
+
+
+class DeleteVolumeTestCase(unittest.TestCase):
+
+    def setUp(self):
+        self.mock_shade_client = mock.Mock()
+
+    def test_delete_volume(self):
+        self.mock_shade_client.delete_volume.return_value = True
+        output = openstack_utils.delete_volume(self.mock_shade_client,
+                                               'volume_name_or_id')
+        self.assertTrue(output)
+
+    def test_delete_volume_fail(self):
+        self.mock_shade_client.delete_volume.return_value = False
+        output = openstack_utils.delete_volume(self.mock_shade_client,
+                                               'volume_name_or_id')
+        self.assertFalse(output)
+
+    @mock.patch.object(openstack_utils, 'log')
+    def test_delete_volume_exception(self, mock_logger):
+        self.mock_shade_client.delete_volume.side_effect = (
+            exc.OpenStackCloudException('error message'))
+        output = openstack_utils.delete_volume(self.mock_shade_client,
+                                               'volume_name_or_id')
+        mock_logger.error.assert_called_once()
+        self.assertFalse(output)