This is the intended behavior. The HosySystem class is just a placeholder - if the guest has the SBLIM providers installed, then the proper class to represent the host is Linux_ComputerSystem (this is the SBLIM provider that represents the "base" or host system).
We don't want the HostSystem provider to return anything in this case, because there's no need for a placeholder.
If the HostSystem provider return NULL, how to make test case work? Because the test expects to return at least one Xen_HostSystem instance. Would you please explain more for me on this? Any suggestion on fixing them?
The test behavior needs to be changed for the sblim case. 1) If SBLIM: Enum of HostSystem doesn't return any instances 2) If not SBLIM: Enum of HostSystem returns a single instance If you take a look at the get_host() in Virt_HostSystem.c, you'll get an understanding of how the providers determine whether a SBLIM instance is available on the system. Does this help? -- Kaitlin Rupert IBM Linux Technology Center kaitlin@linux.vnet.ibm.com