Updated openstack/openstack
Project: openstack/cinder  eb20e9e5009541ea0037588a43443c74e8968c9c

Add unit test for commit 22abe9081

Commit 22abe9081 fixed a bug in commit d7bd65e8e which we could have
found the first time with a simple unit test.

This change adds the unit test to cover that new error handling block.

Related-Bug: #1398078

Change-Id: I86d2fd477f3ae5590c5f079a4c806d1f50eb96d0