assertion fails because cluster could be None
assertion fails because cluster could be None

Object is being used in one of the Assert statements however it is not
callable. Fixed it.

Signed-off-by: Prasanna Santhanam <82219615980488abd2acc1a3d71cfb58f0b2b8b6@apache.org>

jcshen007/cloudstack,resmo/cloudstack,resmo/cloudstack,resmo/cloudstack,GabrielBrascher/cloudstack,DaanHoogland/cloudstack,resmo/cloudstack,GabrielBrascher/cloudstack,DaanHoogland/cloudstack,resmo/cloudstack,jcshen007/cloudstack,GabrielBrascher/cloudstack,DaanHoogland/cloudstack,wido/cloudstack,jcshen007/cloudstack,GabrielBrascher/cloudstack,wido/cloudstack,jcshen007/cloudstack,jcshen007/cloudstack,DaanHoogland/cloudstack,jcshen007/cloudstack,wido/cloudstack,wido/cloudstack,resmo/cloudstack,resmo/cloudstack,DaanHoogland/cloudstack,wido/cloudstack,DaanHoogland/cloudstack,jcshen007/cloudstack,GabrielBrascher/cloudstack,GabrielBrascher/cloudstack,wido/cloudstack,GabrielBrascher/cloudstack,wido/cloudstack,DaanHoogland/cloudstack