t.Fatal(err)
			}
			deleteNodeIndex++
		}
	}
	var createPodIndex int
	createPodsOneRound := func() {
		if createPodIndex > waitSchedulingPodNumber {
			return
		}
		for i := 0; i < createPodNumberPerRound; i++ {
			podName := fmt.Sprintf("pod%d", createPodIndex)
			// Note: the node(specifiedNodeName) may already be deleted, which leads pod scheduled failed.