tree a45d59e671b44e3e546a04047af2e098ff7eef51
parent ff956a6669ecd546de89d43d52771aade0f56896
author Zhi Kun Liu <zhikunli@cn.ibm.com> 1393488924 +0800
committer Zhi Kun Liu <zhikunli@cn.ibm.com> 1394172318 +0800

cleanup resources in setUpClass if exception raised

Resources created would not be cleanup if exception raised
in setUpClass.

This patch adds a new decorator to wrap setUpClass for
catching the exception in setUpClass and cleanup resources
using tearDownClass().

Use the decorator in the following test classes:
FloatingIPsTestJSON
ImagesMetadataTestJSON
ListServerFiltersTestJSON

Change-Id: Ia20ebd2a5d1b5ecbd5e8b21e51e7c2ee4c99fbd5
Closes-Bug: #1285509