fakeRuntimeService := apitest.NewFakeRuntimeService()
	fakeImageService := apitest.NewFakeImageService()
	// Only an empty machineInfo is needed here, because in unit test all containers are besteffort,
	// data in machineInfo is not used. If burstable containers are used in unit test in the future,
	// we may want to set memory capacity.
	memoryCapacityQuantity := resource.MustParse(fakeNodeAllocatableMemory)

	PodQOSGuaranteed PodQOSClass = "Guaranteed"
	// PodQOSBurstable is the Burstable qos class.
	PodQOSBurstable PodQOSClass = "Burstable"
	// PodQOSBestEffort is the BestEffort qos class.
	PodQOSBestEffort PodQOSClass = "BestEffort"
)

// PodDNSConfig defines the DNS parameters of a pod in addition to
// those generated from DNSPolicy.
type PodDNSConfig struct {
	// A list of DNS name server IP addresses.

	PodQOSGuaranteed PodQOSClass = "Guaranteed"
	// PodQOSBurstable is the Burstable qos class.
	PodQOSBurstable PodQOSClass = "Burstable"
	// PodQOSBestEffort is the BestEffort qos class.
	PodQOSBestEffort PodQOSClass = "BestEffort"
)

// PodDNSConfig defines the DNS parameters of a pod in addition to
// those generated from DNSPolicy.
type PodDNSConfig struct {
	// A list of DNS name server IP addresses.

						ImagePullPolicy:          "Always",
						Image:                    "foo:V2",
					}},
				},
			},
			err:  "Pod QoS is immutable",
			test: "Pod QoS change, besteffort -> burstable",
		}, {
			new: core.Pod{
				ObjectMeta: metav1.ObjectMeta{Name: "pod"},
				Spec: core.PodSpec{
					Containers: []core.Container{{
						Name:                     "container",

							Type:        []string{"string"},
							Format:      "",
							Enum:        []interface{}{"BestEffort", "Burstable", "Guaranteed"},
						},
					},
					"ephemeralContainerStatuses": {

          "enum": [
            "BestEffort",
            "Burstable",
            "Guaranteed"
          ],
          "type": "string"
        },