After put cls.servers.append(server) before wait_for_server_status in base.BaseComputeTest, this bug has been fixed. Because BaseComputeTest.tearDownClass will execute cls.clear_servers(). These instances will be cleaned.
After put cls.servers. append( server) before wait_for_ server_ status in base.BaseComput eTest, this bug has been fixed. Because BaseComputeTest .tearDownClass will execute cls.clear_ servers( ). These instances will be cleaned.