tests, XFail: adding 'condition' parameter to XFail
tests, XFail: adding 'condition' parameter to XFail

The 'condition' parameter can be used to specify whether the default Fail
handler should be replaced.

This parameter allows the calling code to look nicer.

Signed-off-by: Alona Kaplan <9ea2f88c7fe7e68aa51858b03e0d548211901b83@redhat.com>

kubevirt/kubevirt,kubevirt/kubevirt,davidvossel/kubevirt,kubevirt/kubevirt,davidvossel/kubevirt,davidvossel/kubevirt,davidvossel/kubevirt,stu-gott/kubevirt,kubevirt/kubevirt,stu-gott/kubevirt,stu-gott/kubevirt,stu-gott/kubevirt