Support error handling for delete commands in volume v1

Some delete commands in volume v1 support multi delete
but do not support error handling, this patch fixes them,
and this patch also refactor (or add new) unit tests for
some delete commands in volume v1.

Change-Id: Ia8177698f8733cfe75ea0ff00eee8fdc0820f62e

1 files changed, 23 insertions, 4 deletions

diff --git a/openstackclient/volume/v1/snapshot.py b/openstackclient/volume/v1/snapshot.py
index bb3a1fc3..e65475f0 100644
--- a/openstackclient/volume/v1/snapshot.py
+++ b/openstackclient/volume/v1/snapshot.py
@@ -16,15 +16,20 @@
 """Volume v1 Snapshot action implementations"""
 
 import copy
+import logging
 
 from osc_lib.cli import parseractions
 from osc_lib.command import command
+from osc_lib import exceptions
 from osc_lib import utils
 import six
 
 from openstackclient.i18n import _
 
 
+LOG = logging.getLogger(__name__)
+
+
 class CreateSnapshot(command.ShowOne):
     """Create new snapshot"""
 
@@ -88,10 +93,24 @@ class DeleteSnapshot(command.Command):
 
     def take_action(self, parsed_args):
         volume_client = self.app.client_manager.volume
-        for snapshot in parsed_args.snapshots:
-            snapshot_id = utils.find_resource(volume_client.volume_snapshots,
-                                              snapshot).id
-            volume_client.volume_snapshots.delete(snapshot_id)
+        result = 0
+
+        for i in parsed_args.snapshots:
+            try:
+                snapshot_id = utils.find_resource(
+                    volume_client.volume_snapshots, i).id
+                volume_client.volume_snapshots.delete(snapshot_id)
+            except Exception as e:
+                result += 1
+                LOG.error(_("Failed to delete snapshot with "
+                            "name or ID '%(snapshot)s': %(e)s"),
+                          {'snapshot': i, 'e': e})
+
+        if result > 0:
+            total = len(parsed_args.snapshots)
+            msg = (_("%(result)s of %(total)s snapshots failed "
+                   "to delete.") % {'result': result, 'total': total})
+            raise exceptions.CommandError(msg)
 
 
 class ListSnapshot(command.Lister):