func TestPendingPodsMetric(t *testing.T) {
	timestamp := time.Now()
	metrics.Register()
	total := 60
	queueableNum := 50
	queueable, failme := "queueable", "failme"
	// First 50 Pods are queueable.
	pInfos := makeQueuedPodInfos(queueableNum, "x", queueable, timestamp)
	// The last 10 Pods are not queueable.
	gated := makeQueuedPodInfos(total-queueableNum, "y", failme, timestamp)
	// Manually mark them as gated=true.