return nil, errUnsupported
}

func (cu *cadvisorUnsupported) ImagesFsInfo() (cadvisorapiv2.FsInfo, error) {
	return cadvisorapiv2.FsInfo{}, errUnsupported
}

func (cu *cadvisorUnsupported) RootFsInfo() (cadvisorapiv2.FsInfo, error) {
	return cadvisorapiv2.FsInfo{}, errUnsupported
}

func (cu *cadvisorUnsupported) ContainerFsInfo() (cadvisorapiv2.FsInfo, error) {

func (cu *cadvisorClient) VersionInfo() (*cadvisorapi.VersionInfo, error) {
	return cu.winStatsClient.WinVersionInfo()
}

func (cu *cadvisorClient) ImagesFsInfo() (cadvisorapiv2.FsInfo, error) {
	return cadvisorapiv2.FsInfo{}, nil
}

func (cu *cadvisorClient) ContainerFsInfo() (cadvisorapiv2.FsInfo, error) {
	return cadvisorapiv2.FsInfo{}, nil
}

func (cu *cadvisorClient) RootFsInfo() (cadvisorapiv2.FsInfo, error) {

	MachineInfo() (*cadvisorapi.MachineInfo, error)

	VersionInfo() (*cadvisorapi.VersionInfo, error)

	// Returns usage information about the filesystem holding container images.
	ImagesFsInfo() (cadvisorapiv2.FsInfo, error)

	// Returns usage information about the root filesystem.
	RootFsInfo() (cadvisorapiv2.FsInfo, error)

	if err != nil {
		return nil, err
	}

	var stats []*cadvisorapiv2.ContainerStats
	stats = append(stats, &cadvisorapiv2.ContainerStats{
		Timestamp: nodeMetrics.timeStamp,
		Cpu: &cadvisorapi.CpuStats{
			Usage: cadvisorapi.CpuUsage{
				Total: nodeMetrics.cpuUsageCoreNanoSeconds,
			},
		},
		CpuInst: &cadvisorapiv2.CpuInstStats{
			Usage: cadvisorapiv2.CpuInstUsage{
				Total: nodeMetrics.cpuUsageNanoCores,
			},

func (c *Fake) RootFsInfo() (cadvisorapiv2.FsInfo, error) {
	return cadvisorapiv2.FsInfo{}, nil
}

// ContainerFsInfo is a fake implementation of Interface.ContainerFsInfo.
func (c *Fake) ContainerFsInfo() (cadvisorapiv2.FsInfo, error) {
	return cadvisorapiv2.FsInfo{}, nil
}

// GetDirFsInfo is a fake implementation of Interface.GetDirFsInfo.
func (c *Fake) GetDirFsInfo(path string) (cadvisorapiv2.FsInfo, error) {

	assert.NoError(t, err)

	var stats []*cadvisorapiv2.ContainerStats
	stats = append(stats, &cadvisorapiv2.ContainerStats{
		Timestamp: timeStamp,
		Cpu: &cadvisorapi.CpuStats{
			Usage: cadvisorapi.CpuUsage{
				Total: 123,
			},
		},
		CpuInst: &cadvisorapiv2.CpuInstStats{
			Usage: cadvisorapiv2.CpuInstUsage{
				Total: 23,
			},
		},
		Memory: &cadvisorapi.MemoryStats{
			WorkingSet: 1234,

			Format: cadvisorapiv1.IntType,
			Units:  "per second",
		},
		{
			Name:   "cpuLoad",
			Type:   cadvisorapiv1.MetricCumulative,
			Format: cadvisorapiv1.FloatType,
			Units:  "count",
		},
	}
	timestamp1 := time.Now()
	timestamp2 := time.Now().Add(time.Minute)
	metrics := map[string][]cadvisorapiv1.MetricVal{
		"qos": {
			{
				Timestamp: timestamp1,
				IntValue:  10,
			},
			{

	label, err := cc.imageFsInfoProvider.ImageFsInfoLabel()
	if err != nil {
		return cadvisorapiv2.FsInfo{}, err
	}
	return cc.getFsInfo(label)
}

func (cc *cadvisorClient) RootFsInfo() (cadvisorapiv2.FsInfo, error) {
	return cc.GetDirFsInfo(cc.rootPath)
}

func (cc *cadvisorClient) getFsInfo(label string) (cadvisorapiv2.FsInfo, error) {
	res, err := cc.GetFsInfo(label)

				e.Format = cadvisorapiv1.IntType
			case 1:
				e.Format = cadvisorapiv1.FloatType
			}
			c.Fuzz(&e.Units)
		})
	var ret []cadvisorapiv1.MetricSpec
	f.Fuzz(&ret)
	return ret
}

func generateCustomMetrics(spec []cadvisorapiv1.MetricSpec) map[string][]cadvisorapiv1.MetricVal {
	ret := map[string][]cadvisorapiv1.MetricVal{}
	for _, metricSpec := range spec {
		f := fuzz.New().NilChance(0).Funcs(

func getCgroupInfo(cadvisor cadvisor.Interface, containerName string, updateStats bool) (*cadvisorapiv2.ContainerInfo, error) {
	var maxAge *time.Duration
	if updateStats {
		age := 0 * time.Second
		maxAge = &age
	}
	infoMap, err := cadvisor.ContainerInfoV2(containerName, cadvisorapiv2.RequestOptions{
		IdType:    cadvisorapiv2.TypeName,
		Count:     2, // 2 samples are needed to compute "instantaneous" CPU
		Recursive: false,