/* Copyright 2017 The Kubernetes Authors. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ package stats import ( "fmt" "testing" "time" cadvisorapiv1 "github.com/google/cadvisor/info/v1" cadvisorapiv2 "github.com/google/cadvisor/info/v2" fuzz "github.com/google/gofuzz" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" "k8s.io/apimachinery/pkg/types" statsapi "k8s.io/kubernetes/pkg/kubelet/apis/stats/v1alpha1" cadvisortest "k8s.io/kubernetes/pkg/kubelet/cadvisor/testing" kubecontainer "k8s.io/kubernetes/pkg/kubelet/container" kubecontainertest "k8s.io/kubernetes/pkg/kubelet/container/testing" kubepodtest "k8s.io/kubernetes/pkg/kubelet/pod/testing" serverstats "k8s.io/kubernetes/pkg/kubelet/server/stats" kubetypes "k8s.io/kubernetes/pkg/kubelet/types" ) const ( // Offsets from seed value in generated container stats. offsetCPUUsageCores = iota offsetCPUUsageCoreSeconds offsetMemPageFaults offsetMemMajorPageFaults offsetMemUsageBytes offsetMemRSSBytes offsetMemWorkingSetBytes offsetNetRxBytes offsetNetRxErrors offsetNetTxBytes offsetNetTxErrors offsetFsCapacity offsetFsAvailable offsetFsUsage offsetFsInodes offsetFsInodesFree offsetFsTotalUsageBytes offsetFsBaseUsageBytes offsetFsInodeUsage ) var ( timestamp = time.Now() creationTime = timestamp.Add(-5 * time.Minute) ) func TestGetCgroupStats(t *testing.T) { const ( cgroupName = "test-cgroup-name" containerInfoSeed = 1000 updateStats = false ) var ( mockCadvisor = new(cadvisortest.Mock) mockPodManager = new(kubepodtest.MockManager) mockRuntimeCache = new(kubecontainertest.MockRuntimeCache) assert = assert.New(t) options = cadvisorapiv2.RequestOptions{IdType: cadvisorapiv2.TypeName, Count: 2, Recursive: false} containerInfo = getTestContainerInfo(containerInfoSeed, "test-pod", "test-ns", "test-container") containerInfoMap = map[string]cadvisorapiv2.ContainerInfo{cgroupName: containerInfo} ) mockCadvisor.On("ContainerInfoV2", cgroupName, options).Return(containerInfoMap, nil) provider := newStatsProvider(mockCadvisor, mockPodManager, mockRuntimeCache, fakeContainerStatsProvider{}) cs, ns, err := provider.GetCgroupStats(cgroupName, updateStats) assert.NoError(err) checkCPUStats(t, "", containerInfoSeed, cs.CPU) checkMemoryStats(t, "", containerInfoSeed, containerInfo, cs.Memory) checkNetworkStats(t, "", containerInfoSeed, ns) assert.Equal(cgroupName, cs.Name) assert.Equal(metav1.NewTime(containerInfo.Spec.CreationTime), cs.StartTime) mockCadvisor.AssertExpectations(t) } func TestGetCgroupCPUAndMemoryStats(t *testing.T) { const ( cgroupName = "test-cgroup-name" containerInfoSeed = 1000 updateStats = false ) var ( mockCadvisor = new(cadvisortest.Mock) mockPodManager = new(kubepodtest.MockManager) mockRuntimeCache = new(kubecontainertest.MockRuntimeCache) assert = assert.New(t) options = cadvisorapiv2.RequestOptions{IdType: cadvisorapiv2.TypeName, Count: 2, Recursive: false} containerInfo = getTestContainerInfo(containerInfoSeed, "test-pod", "test-ns", "test-container") containerInfoMap = map[string]cadvisorapiv2.ContainerInfo{cgroupName: containerInfo} ) mockCadvisor.On("ContainerInfoV2", cgroupName, options).Return(containerInfoMap, nil) provider := newStatsProvider(mockCadvisor, mockPodManager, mockRuntimeCache, fakeContainerStatsProvider{}) cs, err := provider.GetCgroupCPUAndMemoryStats(cgroupName, updateStats) assert.NoError(err) checkCPUStats(t, "", containerInfoSeed, cs.CPU) checkMemoryStats(t, "", containerInfoSeed, containerInfo, cs.Memory) assert.Equal(cgroupName, cs.Name) assert.Equal(metav1.NewTime(containerInfo.Spec.CreationTime), cs.StartTime) mockCadvisor.AssertExpectations(t) } func TestRootFsStats(t *testing.T) { const ( rootFsInfoSeed = 1000 containerInfoSeed = 2000 ) var ( mockCadvisor = new(cadvisortest.Mock) mockPodManager = new(kubepodtest.MockManager) mockRuntimeCache = new(kubecontainertest.MockRuntimeCache) assert = assert.New(t) options = cadvisorapiv2.RequestOptions{IdType: cadvisorapiv2.TypeName, Count: 2, Recursive: false} rootFsInfo = getTestFsInfo(rootFsInfoSeed) containerInfo = getTestContainerInfo(containerInfoSeed, "test-pod", "test-ns", "test-container") containerInfoMap = map[string]cadvisorapiv2.ContainerInfo{"/": containerInfo} ) mockCadvisor. On("RootFsInfo").Return(rootFsInfo, nil). On("ContainerInfoV2", "/", options).Return(containerInfoMap, nil) provider := newStatsProvider(mockCadvisor, mockPodManager, mockRuntimeCache, fakeContainerStatsProvider{}) stats, err := provider.RootFsStats() assert.NoError(err) checkFsStats(t, "", rootFsInfoSeed, stats) assert.Equal(metav1.NewTime(containerInfo.Stats[0].Timestamp), stats.Time) assert.Equal(rootFsInfo.Usage, *stats.UsedBytes) assert.Equal(*rootFsInfo.Inodes-*rootFsInfo.InodesFree, *stats.InodesUsed) mockCadvisor.AssertExpectations(t) } func TestGetContainerInfo(t *testing.T) { cadvisorAPIFailure := fmt.Errorf("cAdvisor failure") runtimeError := fmt.Errorf("List containers error") tests := []struct { name string containerID string containerPath string cadvisorContainerInfo cadvisorapiv1.ContainerInfo runtimeError error podList []*kubecontainer.Pod requestedPodFullName string requestedPodUID types.UID requestedContainerName string expectDockerContainerCall bool mockError error expectedError error expectStats bool }{ { name: "get container info", containerID: "ab2cdf", containerPath: "/docker/ab2cdf", cadvisorContainerInfo: cadvisorapiv1.ContainerInfo{ ContainerReference: cadvisorapiv1.ContainerReference{ Name: "/docker/ab2cdf", }, }, runtimeError: nil, podList: []*kubecontainer.Pod{ { ID: "12345678", Name: "qux", Namespace: "ns", Containers: []*kubecontainer.Container{ { Name: "foo", ID: kubecontainer.ContainerID{Type: "test", ID: "ab2cdf"}, }, }, }, }, requestedPodFullName: "qux_ns", requestedPodUID: "", requestedContainerName: "foo", expectDockerContainerCall: true, mockError: nil, expectedError: nil, expectStats: true, }, { name: "get container info when cadvisor failed", containerID: "ab2cdf", containerPath: "/docker/ab2cdf", cadvisorContainerInfo: cadvisorapiv1.ContainerInfo{}, runtimeError: nil, podList: []*kubecontainer.Pod{ { ID: "uuid", Name: "qux", Namespace: "ns", Containers: []*kubecontainer.Container{ { Name: "foo", ID: kubecontainer.ContainerID{Type: "test", ID: "ab2cdf"}, }, }, }, }, requestedPodFullName: "qux_ns", requestedPodUID: "uuid", requestedContainerName: "foo", expectDockerContainerCall: true, mockError: cadvisorAPIFailure, expectedError: cadvisorAPIFailure, expectStats: false, }, { name: "get container info on non-existent container", containerID: "", containerPath: "", cadvisorContainerInfo: cadvisorapiv1.ContainerInfo{}, runtimeError: nil, podList: []*kubecontainer.Pod{}, requestedPodFullName: "qux", requestedPodUID: "", requestedContainerName: "foo", expectDockerContainerCall: false, mockError: nil, expectedError: kubecontainer.ErrContainerNotFound, expectStats: false, }, { name: "get container info when container runtime failed", containerID: "", containerPath: "", cadvisorContainerInfo: cadvisorapiv1.ContainerInfo{}, runtimeError: runtimeError, podList: []*kubecontainer.Pod{}, requestedPodFullName: "qux", requestedPodUID: "", requestedContainerName: "foo", mockError: nil, expectedError: runtimeError, expectStats: false, }, { name: "get container info with no containers", containerID: "", containerPath: "", cadvisorContainerInfo: cadvisorapiv1.ContainerInfo{}, runtimeError: nil, podList: []*kubecontainer.Pod{}, requestedPodFullName: "qux_ns", requestedPodUID: "", requestedContainerName: "foo", mockError: nil, expectedError: kubecontainer.ErrContainerNotFound, expectStats: false, }, { name: "get container info with no matching containers", containerID: "", containerPath: "", cadvisorContainerInfo: cadvisorapiv1.ContainerInfo{}, runtimeError: nil, podList: []*kubecontainer.Pod{ { ID: "12345678", Name: "qux", Namespace: "ns", Containers: []*kubecontainer.Container{ { Name: "bar", ID: kubecontainer.ContainerID{Type: "test", ID: "fakeID"}, }, }, }, }, requestedPodFullName: "qux_ns", requestedPodUID: "", requestedContainerName: "foo", mockError: nil, expectedError: kubecontainer.ErrContainerNotFound, expectStats: false, }, } for _, tc := range tests { var ( mockCadvisor = new(cadvisortest.Mock) mockPodManager = new(kubepodtest.MockManager) mockRuntimeCache = new(kubecontainertest.MockRuntimeCache) cadvisorReq = &cadvisorapiv1.ContainerInfoRequest{} ) mockPodManager.On("TranslatePodUID", tc.requestedPodUID).Return(kubetypes.ResolvedPodUID(tc.requestedPodUID)) mockRuntimeCache.On("GetPods").Return(tc.podList, tc.runtimeError) if tc.expectDockerContainerCall { mockCadvisor.On("DockerContainer", tc.containerID, cadvisorReq).Return(tc.cadvisorContainerInfo, tc.mockError) } provider := newStatsProvider(mockCadvisor, mockPodManager, mockRuntimeCache, fakeContainerStatsProvider{}) stats, err := provider.GetContainerInfo(tc.requestedPodFullName, tc.requestedPodUID, tc.requestedContainerName, cadvisorReq) assert.Equal(t, tc.expectedError, err) if tc.expectStats { require.NotNil(t, stats) } mockCadvisor.AssertExpectations(t) } } func TestGetRawContainerInfoRoot(t *testing.T) { var ( mockCadvisor = new(cadvisortest.Mock) mockPodManager = new(kubepodtest.MockManager) mockRuntimeCache = new(kubecontainertest.MockRuntimeCache) cadvisorReq = &cadvisorapiv1.ContainerInfoRequest{} containerPath = "/" containerInfo = &cadvisorapiv1.ContainerInfo{ ContainerReference: cadvisorapiv1.ContainerReference{ Name: containerPath, }, } ) mockCadvisor.On("ContainerInfo", containerPath, cadvisorReq).Return(containerInfo, nil) provider := newStatsProvider(mockCadvisor, mockPodManager, mockRuntimeCache, fakeContainerStatsProvider{}) _, err := provider.GetRawContainerInfo(containerPath, cadvisorReq, false) assert.NoError(t, err) mockCadvisor.AssertExpectations(t) } func TestGetRawContainerInfoSubcontainers(t *testing.T) { var ( mockCadvisor = new(cadvisortest.Mock) mockPodManager = new(kubepodtest.MockManager) mockRuntimeCache = new(kubecontainertest.MockRuntimeCache) cadvisorReq = &cadvisorapiv1.ContainerInfoRequest{} containerPath = "/kubelet" containerInfo = map[string]*cadvisorapiv1.ContainerInfo{ containerPath: { ContainerReference: cadvisorapiv1.ContainerReference{ Name: containerPath, }, }, "/kubelet/sub": { ContainerReference: cadvisorapiv1.ContainerReference{ Name: "/kubelet/sub", }, }, } ) mockCadvisor.On("SubcontainerInfo", containerPath, cadvisorReq).Return(containerInfo, nil) provider := newStatsProvider(mockCadvisor, mockPodManager, mockRuntimeCache, fakeContainerStatsProvider{}) result, err := provider.GetRawContainerInfo(containerPath, cadvisorReq, true) assert.NoError(t, err) assert.Len(t, result, 2) mockCadvisor.AssertExpectations(t) } func TestHasDedicatedImageFs(t *testing.T) { for desc, test := range map[string]struct { rootfsDevice string imagefsDevice string dedicated bool }{ "dedicated device for image filesystem": { rootfsDevice: "root/device", imagefsDevice: "image/device", dedicated: true, }, "shared device for image filesystem": { rootfsDevice: "share/device", imagefsDevice: "share/device", dedicated: false, }, } { t.Logf("TestCase %q", desc) var ( mockCadvisor = new(cadvisortest.Mock) mockPodManager = new(kubepodtest.MockManager) mockRuntimeCache = new(kubecontainertest.MockRuntimeCache) ) mockCadvisor.On("RootFsInfo").Return(cadvisorapiv2.FsInfo{Device: test.rootfsDevice}, nil) provider := newStatsProvider(mockCadvisor, mockPodManager, mockRuntimeCache, fakeContainerStatsProvider{ device: test.imagefsDevice, }) dedicated, err := provider.HasDedicatedImageFs() assert.NoError(t, err) assert.Equal(t, test.dedicated, dedicated) mockCadvisor.AssertExpectations(t) } } func getTerminatedContainerInfo(seed int, podName string, podNamespace string, containerName string) cadvisorapiv2.ContainerInfo { cinfo := getTestContainerInfo(seed, podName, podNamespace, containerName) cinfo.Stats[0].Memory.RSS = 0 cinfo.Stats[0].CpuInst.Usage.Total = 0 return cinfo } func getTestContainerInfo(seed int, podName string, podNamespace string, containerName string) cadvisorapiv2.ContainerInfo { labels := map[string]string{} if podName != "" { labels = map[string]string{ "io.kubernetes.pod.name": podName, "io.kubernetes.pod.uid": "UID" + podName, "io.kubernetes.pod.namespace": podNamespace, "io.kubernetes.container.name": containerName, } } // by default, kernel will set memory.limit_in_bytes to 1 << 63 if not bounded unlimitedMemory := uint64(1 << 63) spec := cadvisorapiv2.ContainerSpec{ CreationTime: testTime(creationTime, seed), HasCpu: true, HasMemory: true, HasNetwork: true, Labels: labels, Memory: cadvisorapiv2.MemorySpec{ Limit: unlimitedMemory, }, CustomMetrics: generateCustomMetricSpec(), } totalUsageBytes := uint64(seed + offsetFsTotalUsageBytes) baseUsageBytes := uint64(seed + offsetFsBaseUsageBytes) inodeUsage := uint64(seed + offsetFsInodeUsage) stats := cadvisorapiv2.ContainerStats{ Timestamp: testTime(timestamp, seed), Cpu: &cadvisorapiv1.CpuStats{}, CpuInst: &cadvisorapiv2.CpuInstStats{}, Memory: &cadvisorapiv1.MemoryStats{ Usage: uint64(seed + offsetMemUsageBytes), WorkingSet: uint64(seed + offsetMemWorkingSetBytes), RSS: uint64(seed + offsetMemRSSBytes), ContainerData: cadvisorapiv1.MemoryStatsMemoryData{ Pgfault: uint64(seed + offsetMemPageFaults), Pgmajfault: uint64(seed + offsetMemMajorPageFaults), }, }, Network: &cadvisorapiv2.NetworkStats{ Interfaces: []cadvisorapiv1.InterfaceStats{{ Name: "eth0", RxBytes: uint64(seed + offsetNetRxBytes), RxErrors: uint64(seed + offsetNetRxErrors), TxBytes: uint64(seed + offsetNetTxBytes), TxErrors: uint64(seed + offsetNetTxErrors), }, { Name: "cbr0", RxBytes: 100, RxErrors: 100, TxBytes: 100, TxErrors: 100, }}, }, CustomMetrics: generateCustomMetrics(spec.CustomMetrics), Filesystem: &cadvisorapiv2.FilesystemStats{ TotalUsageBytes: &totalUsageBytes, BaseUsageBytes: &baseUsageBytes, InodeUsage: &inodeUsage, }, } stats.Cpu.Usage.Total = uint64(seed + offsetCPUUsageCoreSeconds) stats.CpuInst.Usage.Total = uint64(seed + offsetCPUUsageCores) return cadvisorapiv2.ContainerInfo{ Spec: spec, Stats: []*cadvisorapiv2.ContainerStats{&stats}, } } func getTestFsInfo(seed int) cadvisorapiv2.FsInfo { var ( inodes = uint64(seed + offsetFsInodes) inodesFree = uint64(seed + offsetFsInodesFree) ) return cadvisorapiv2.FsInfo{ Timestamp: time.Now(), Device: "test-device", Mountpoint: "test-mount-point", Capacity: uint64(seed + offsetFsCapacity), Available: uint64(seed + offsetFsAvailable), Usage: uint64(seed + offsetFsUsage), Inodes: &inodes, InodesFree: &inodesFree, } } func getPodVolumeStats(seed int, volumeName string) statsapi.VolumeStats { availableBytes := uint64(seed + offsetFsAvailable) capacityBytes := uint64(seed + offsetFsCapacity) usedBytes := uint64(seed + offsetFsUsage) inodes := uint64(seed + offsetFsInodes) inodesFree := uint64(seed + offsetFsInodesFree) inodesUsed := uint64(seed + offsetFsInodeUsage) fsStats := statsapi.FsStats{ Time: metav1.NewTime(time.Now()), AvailableBytes: &availableBytes, CapacityBytes: &capacityBytes, UsedBytes: &usedBytes, Inodes: &inodes, InodesFree: &inodesFree, InodesUsed: &inodesUsed, } return statsapi.VolumeStats{ FsStats: fsStats, Name: volumeName, } } func generateCustomMetricSpec() []cadvisorapiv1.MetricSpec { f := fuzz.New().NilChance(0).Funcs( func(e *cadvisorapiv1.MetricSpec, c fuzz.Continue) { c.Fuzz(&e.Name) switch c.Intn(3) { case 0: e.Type = cadvisorapiv1.MetricGauge case 1: e.Type = cadvisorapiv1.MetricCumulative case 2: e.Type = cadvisorapiv1.MetricDelta } switch c.Intn(2) { case 0: 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(e *cadvisorapiv1.MetricVal, c fuzz.Continue) { switch metricSpec.Format { case cadvisorapiv1.IntType: c.Fuzz(&e.IntValue) case cadvisorapiv1.FloatType: c.Fuzz(&e.FloatValue) } }) var metrics []cadvisorapiv1.MetricVal f.Fuzz(&metrics) ret[metricSpec.Name] = metrics } return ret } func testTime(base time.Time, seed int) time.Time { return base.Add(time.Duration(seed) * time.Second) } func checkNetworkStats(t *testing.T, label string, seed int, stats *statsapi.NetworkStats) { assert.NotNil(t, stats) assert.EqualValues(t, testTime(timestamp, seed).Unix(), stats.Time.Time.Unix(), label+".Net.Time") assert.EqualValues(t, "eth0", stats.Name, "default interface name is not eth0") assert.EqualValues(t, seed+offsetNetRxBytes, *stats.RxBytes, label+".Net.RxBytes") assert.EqualValues(t, seed+offsetNetRxErrors, *stats.RxErrors, label+".Net.RxErrors") assert.EqualValues(t, seed+offsetNetTxBytes, *stats.TxBytes, label+".Net.TxBytes") assert.EqualValues(t, seed+offsetNetTxErrors, *stats.TxErrors, label+".Net.TxErrors") assert.EqualValues(t, 2, len(stats.Interfaces), "network interfaces should contain 2 elements") assert.EqualValues(t, "eth0", stats.Interfaces[0].Name, "default interface name is not eth0") assert.EqualValues(t, seed+offsetNetRxBytes, *stats.Interfaces[0].RxBytes, label+".Net.TxErrors") assert.EqualValues(t, seed+offsetNetRxErrors, *stats.Interfaces[0].RxErrors, label+".Net.TxErrors") assert.EqualValues(t, seed+offsetNetTxBytes, *stats.Interfaces[0].TxBytes, label+".Net.TxErrors") assert.EqualValues(t, seed+offsetNetTxErrors, *stats.Interfaces[0].TxErrors, label+".Net.TxErrors") assert.EqualValues(t, "cbr0", stats.Interfaces[1].Name, "cbr0 interface name is not cbr0") assert.EqualValues(t, 100, *stats.Interfaces[1].RxBytes, label+".Net.TxErrors") assert.EqualValues(t, 100, *stats.Interfaces[1].RxErrors, label+".Net.TxErrors") assert.EqualValues(t, 100, *stats.Interfaces[1].TxBytes, label+".Net.TxErrors") assert.EqualValues(t, 100, *stats.Interfaces[1].TxErrors, label+".Net.TxErrors") } func checkCPUStats(t *testing.T, label string, seed int, stats *statsapi.CPUStats) { assert.EqualValues(t, testTime(timestamp, seed).Unix(), stats.Time.Time.Unix(), label+".CPU.Time") assert.EqualValues(t, seed+offsetCPUUsageCores, *stats.UsageNanoCores, label+".CPU.UsageCores") assert.EqualValues(t, seed+offsetCPUUsageCoreSeconds, *stats.UsageCoreNanoSeconds, label+".CPU.UsageCoreSeconds") } func checkMemoryStats(t *testing.T, label string, seed int, info cadvisorapiv2.ContainerInfo, stats *statsapi.MemoryStats) { assert.EqualValues(t, testTime(timestamp, seed).Unix(), stats.Time.Time.Unix(), label+".Mem.Time") assert.EqualValues(t, seed+offsetMemUsageBytes, *stats.UsageBytes, label+".Mem.UsageBytes") assert.EqualValues(t, seed+offsetMemWorkingSetBytes, *stats.WorkingSetBytes, label+".Mem.WorkingSetBytes") assert.EqualValues(t, seed+offsetMemRSSBytes, *stats.RSSBytes, label+".Mem.RSSBytes") assert.EqualValues(t, seed+offsetMemPageFaults, *stats.PageFaults, label+".Mem.PageFaults") assert.EqualValues(t, seed+offsetMemMajorPageFaults, *stats.MajorPageFaults, label+".Mem.MajorPageFaults") if !info.Spec.HasMemory || isMemoryUnlimited(info.Spec.Memory.Limit) { assert.Nil(t, stats.AvailableBytes, label+".Mem.AvailableBytes") } else { expected := info.Spec.Memory.Limit - *stats.WorkingSetBytes assert.EqualValues(t, expected, *stats.AvailableBytes, label+".Mem.AvailableBytes") } } func checkFsStats(t *testing.T, label string, seed int, stats *statsapi.FsStats) { assert.EqualValues(t, seed+offsetFsCapacity, *stats.CapacityBytes, label+".CapacityBytes") assert.EqualValues(t, seed+offsetFsAvailable, *stats.AvailableBytes, label+".AvailableBytes") assert.EqualValues(t, seed+offsetFsInodes, *stats.Inodes, label+".Inodes") assert.EqualValues(t, seed+offsetFsInodesFree, *stats.InodesFree, label+".InodesFree") } func checkEphemeralStats(t *testing.T, label string, containerSeeds []int, volumeSeeds []int, stats *statsapi.FsStats) { var usedBytes, inodeUsage int for _, cseed := range containerSeeds { usedBytes = usedBytes + cseed + offsetFsTotalUsageBytes inodeUsage += cseed + offsetFsInodeUsage } for _, vseed := range volumeSeeds { usedBytes = usedBytes + vseed + offsetFsUsage inodeUsage += vseed + offsetFsInodeUsage } assert.EqualValues(t, usedBytes, int(*stats.UsedBytes), label+".UsedBytes") assert.EqualValues(t, inodeUsage, int(*stats.InodesUsed), label+".InodesUsed") } type fakeResourceAnalyzer struct { podVolumeStats serverstats.PodVolumeStats } func (o *fakeResourceAnalyzer) Start() {} func (o *fakeResourceAnalyzer) Get(bool) (*statsapi.Summary, error) { return nil, nil } func (o *fakeResourceAnalyzer) GetCPUAndMemoryStats() (*statsapi.Summary, error) { return nil, nil } func (o *fakeResourceAnalyzer) GetPodVolumeStats(uid types.UID) (serverstats.PodVolumeStats, bool) { return o.podVolumeStats, true } type fakeContainerStatsProvider struct { device string } func (p fakeContainerStatsProvider) ListPodStats() ([]statsapi.PodStats, error) { return nil, fmt.Errorf("not implemented") } func (p fakeContainerStatsProvider) ListPodStatsAndUpdateCPUNanoCoreUsage() ([]statsapi.PodStats, error) { return nil, fmt.Errorf("not implemented") } func (p fakeContainerStatsProvider) ListPodCPUAndMemoryStats() ([]statsapi.PodStats, error) { return nil, fmt.Errorf("not implemented") } func (p fakeContainerStatsProvider) ImageFsStats() (*statsapi.FsStats, error) { return nil, fmt.Errorf("not implemented") } func (p fakeContainerStatsProvider) ImageFsDevice() (string, error) { return p.device, nil }