func bumpLimit(t *testing.T, lrClient kcoreclient.LimitRangeInterface, limitRangeName string, resourceName kapi.ResourceName, limit string) kapi.ResourceList {
	t.Logf("bump a limit on resource %q to %s", resourceName, limit)
	lr, err := lrClient.Get(limitRangeName)
	if err != nil {
		t.Fatal(err)
	}
	res := kapi.ResourceList{}

	change := false
	for i := range lr.Spec.Limits {
		item := &lr.Spec.Limits[i]
		if old, exists := item.Max[resourceName]; exists {
			for k, v := range item.Max {
				res[k] = v
			}
			parsed := resource.MustParse(limit)
			if old.Cmp(parsed) != 0 {
				item.Max[resourceName] = parsed
				change = true
			}
		}
	}

	if !change {
		return res
	}
	_, err = lrClient.Update(lr)
	if err != nil {
		t.Fatal(err)
	}
	return res
}