k8s.io/kubernetes@v1.29.3/pkg/volume/util/fsquota/quota_linux_test.go

//go:build linux
// +build linux

/*
Copyright 2018 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 fsquota

import (
	"fmt"
	"os"
	"strings"
	"testing"

	"k8s.io/mount-utils"

	"k8s.io/apimachinery/pkg/api/resource"
	"k8s.io/apimachinery/pkg/types"
	utilfeature "k8s.io/apiserver/pkg/util/feature"
	featuregatetesting "k8s.io/component-base/featuregate/testing"
	"k8s.io/kubernetes/pkg/features"
	"k8s.io/kubernetes/pkg/volume/util/fsquota/common"
)

const dummyMountData = `sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0
devtmpfs /dev devtmpfs rw,nosuid,size=6133536k,nr_inodes=1533384,mode=755 0 0
tmpfs /tmp tmpfs rw,nosuid,nodev 0 0
/dev/sda1 /boot ext4 rw,relatime 0 0
/dev/mapper/fedora-root / ext4 rw,noatime 0 0
/dev/mapper/fedora-home /home ext4 rw,noatime 0 0
/dev/sdb1 /virt xfs rw,noatime,attr2,inode64,usrquota,prjquota 0 0
`

func dummyFakeMount1() mount.Interface {
	return mount.NewFakeMounter(
		[]mount.MountPoint{
			{
				Device: "tmpfs",
				Path:   "/tmp",
				Type:   "tmpfs",
				Opts:   []string{"rw", "nosuid", "nodev"},
			},
			{
				Device: "/dev/sda1",
				Path:   "/boot",
				Type:   "ext4",
				Opts:   []string{"rw", "relatime"},
			},
			{
				Device: "/dev/mapper/fedora-root",
				Path:   "/",
				Type:   "ext4",
				Opts:   []string{"rw", "relatime"},
			},
			{
				Device: "/dev/mapper/fedora-home",
				Path:   "/home",
				Type:   "ext4",
				Opts:   []string{"rw", "relatime"},
			},
			{
				Device: "/dev/sdb1",
				Path:   "/mnt/virt",
				Type:   "xfs",
				Opts:   []string{"rw", "relatime", "attr2", "inode64", "usrquota", "prjquota"},
			},
		})
}

type backingDevTest struct {
	path           string
	mountdata      string
	expectedResult string
	expectFailure  bool
}

type mountpointTest struct {
	path           string
	mounter        mount.Interface
	expectedResult string
	expectFailure  bool
}

func testBackingDev1(testcase backingDevTest) error {
	tmpfile, err := os.CreateTemp("", "backingdev")
	if err != nil {
		return err
	}
	defer os.Remove(tmpfile.Name())
	if _, err = tmpfile.WriteString(testcase.mountdata); err != nil {
		return err
	}

	backingDev, err := detectBackingDevInternal(testcase.path, tmpfile.Name())
	if err != nil {
		if testcase.expectFailure {
			return nil
		}
		return err
	}
	if testcase.expectFailure {
		return fmt.Errorf("path %s expected to fail; succeeded and got %s", testcase.path, backingDev)
	}
	if backingDev == testcase.expectedResult {
		return nil
	}
	return fmt.Errorf("mismatch: path %s expects mountpoint %s got %s", testcase.path, testcase.expectedResult, backingDev)
}

func TestBackingDev(t *testing.T) {
	testcasesBackingDev := map[string]backingDevTest{
		"Root": {
			"/",
			dummyMountData,
			"/dev/mapper/fedora-root",
			false,
		},
		"tmpfs": {
			"/tmp",
			dummyMountData,
			"tmpfs",
			false,
		},
		"user filesystem": {
			"/virt",
			dummyMountData,
			"/dev/sdb1",
			false,
		},
		"empty mountpoint": {
			"",
			dummyMountData,
			"",
			true,
		},
		"bad mountpoint": {
			"/kiusf",
			dummyMountData,
			"",
			true,
		},
	}
	for name, testcase := range testcasesBackingDev {
		err := testBackingDev1(testcase)
		if err != nil {
			t.Errorf("%s failed: %s", name, err.Error())
		}
	}
}

func TestDetectMountPoint(t *testing.T) {
	testcasesMount := map[string]mountpointTest{
		"Root": {
			"/",
			dummyFakeMount1(),
			"/",
			false,
		},
		"(empty)": {
			"",
			dummyFakeMount1(),
			"/",
			false,
		},
		"(invalid)": {
			"",
			dummyFakeMount1(),
			"/",
			false,
		},
		"/usr": {
			"/usr",
			dummyFakeMount1(),
			"/",
			false,
		},
		"/var/tmp": {
			"/var/tmp",
			dummyFakeMount1(),
			"/",
			false,
		},
	}
	for name, testcase := range testcasesMount {
		mountpoint, err := detectMountpointInternal(testcase.mounter, testcase.path)
		if err == nil && testcase.expectFailure {
			t.Errorf("Case %s expected failure, but succeeded, returning mountpoint %s", name, mountpoint)
		} else if err != nil {
			t.Errorf("Case %s failed: %s", name, err.Error())
		} else if mountpoint != testcase.expectedResult {
			t.Errorf("Case %s got mountpoint %s, expected %s", name, mountpoint, testcase.expectedResult)
		}
	}
}

var dummyMountPoints = []mount.MountPoint{
	{
		Device: "/dev/sda2",
		Path:   "/quota1",
		Type:   "ext4",
		Opts:   []string{"rw", "relatime", "prjquota"},
	},
	{
		Device: "/dev/sda3",
		Path:   "/quota2",
		Type:   "ext4",
		Opts:   []string{"rw", "relatime", "prjquota"},
	},
	{
		Device: "/dev/sda3",
		Path:   "/noquota",
		Type:   "ext4",
		Opts:   []string{"rw", "relatime"},
	},
	{
		Device: "/dev/sda1",
		Path:   "/",
		Type:   "ext4",
		Opts:   []string{"rw", "relatime"},
	},
}

func dummyQuotaTest() mount.Interface {
	return mount.NewFakeMounter(dummyMountPoints)
}

func dummySetFSInfo(path string) {
	if enabledQuotasForMonitoring() {
		for _, mount := range dummyMountPoints {
			if strings.HasPrefix(path, mount.Path) {
				mountpointMap[path] = mount.Path
				backingDevMap[path] = mount.Device
				return
			}
		}
	}
}

type VolumeProvider1 struct {
}

type VolumeProvider2 struct {
}

type testVolumeQuota struct {
}

func logAllMaps(where string) {
	fmt.Printf("Maps at %s\n", where)
	fmt.Printf("    Map podQuotaMap contents:\n")
	for key, val := range podQuotaMap {
		fmt.Printf("        %v -> %v\n", key, val)
	}
	fmt.Printf("    Map dirQuotaMap contents:\n")
	for key, val := range dirQuotaMap {
		fmt.Printf("        %v -> %v\n", key, val)
	}
	fmt.Printf("    Map quotaPodMap contents:\n")
	for key, val := range quotaPodMap {
		fmt.Printf("        %v -> %v\n", key, val)
	}
	fmt.Printf("    Map dirPodMap contents:\n")
	for key, val := range dirPodMap {
		fmt.Printf("        %v -> %v\n", key, val)
	}
	fmt.Printf("    Map devApplierMap contents:\n")
	for key, val := range devApplierMap {
		fmt.Printf("        %v -> %v\n", key, val)
	}
	fmt.Printf("    Map dirApplierMap contents:\n")
	for key, val := range dirApplierMap {
		fmt.Printf("        %v -> %v\n", key, val)
	}
	fmt.Printf("    Map podDirCountMap contents:\n")
	for key, val := range podDirCountMap {
		fmt.Printf("        %v -> %v\n", key, val)
	}
	fmt.Printf("    Map quotaSizeMap contents:\n")
	for key, val := range quotaSizeMap {
		fmt.Printf("        %v -> %v\n", key, val)
	}
	fmt.Printf("    Map supportsQuotasMap contents:\n")
	for key, val := range supportsQuotasMap {
		fmt.Printf("        %v -> %v\n", key, val)
	}
	fmt.Printf("    Map backingDevMap contents:\n")
	for key, val := range backingDevMap {
		fmt.Printf("        %v -> %v\n", key, val)
	}
	fmt.Printf("    Map mountpointMap contents:\n")
	for key, val := range mountpointMap {
		fmt.Printf("        %v -> %v\n", key, val)
	}
	fmt.Printf("End maps %s\n", where)
}

var testIDQuotaMap = make(map[common.QuotaID]string)
var testQuotaIDMap = make(map[string]common.QuotaID)

func (*VolumeProvider1) GetQuotaApplier(mountpoint string, backingDev string) common.LinuxVolumeQuotaApplier {
	if strings.HasPrefix(mountpoint, "/quota1") {
		return testVolumeQuota{}
	}
	return nil
}

func (*VolumeProvider2) GetQuotaApplier(mountpoint string, backingDev string) common.LinuxVolumeQuotaApplier {
	if strings.HasPrefix(mountpoint, "/quota2") {
		return testVolumeQuota{}
	}
	return nil
}

func (v testVolumeQuota) SetQuotaOnDir(dir string, id common.QuotaID, _ int64) error {
	odir, ok := testIDQuotaMap[id]
	if ok && dir != odir {
		return fmt.Errorf("ID %v is already in use", id)
	}
	oid, ok := testQuotaIDMap[dir]
	if ok && id != oid {
		return fmt.Errorf("directory %s already has a quota applied", dir)
	}
	testQuotaIDMap[dir] = id
	testIDQuotaMap[id] = dir
	return nil
}

func (v testVolumeQuota) GetQuotaOnDir(path string) (common.QuotaID, error) {
	id, ok := testQuotaIDMap[path]
	if ok {
		return id, nil
	}
	return common.BadQuotaID, fmt.Errorf("no quota available for %s", path)
}

func (v testVolumeQuota) QuotaIDIsInUse(id common.QuotaID) (bool, error) {
	if _, ok := testIDQuotaMap[id]; ok {
		return true, nil
	}
	// So that we reject some
	if id%3 == 0 {
		return false, nil
	}
	return false, nil
}

func (v testVolumeQuota) GetConsumption(_ string, _ common.QuotaID) (int64, error) {
	return 4096, nil
}

func (v testVolumeQuota) GetInodes(_ string, _ common.QuotaID) (int64, error) {
	return 1, nil
}

func fakeSupportsQuotas(path string) (bool, error) {
	dummySetFSInfo(path)
	return SupportsQuotas(dummyQuotaTest(), path)
}

func fakeAssignQuota(path string, poduid types.UID, bytes int64) error {
	dummySetFSInfo(path)
	return AssignQuota(dummyQuotaTest(), path, poduid, resource.NewQuantity(bytes, resource.DecimalSI))
}

func fakeClearQuota(path string) error {
	dummySetFSInfo(path)
	return ClearQuota(dummyQuotaTest(), path)
}

type quotaTestCase struct {
	name                             string
	path                             string
	poduid                           types.UID
	bytes                            int64
	op                               string
	expectedProjects                 string
	expectedProjid                   string
	supportsQuota                    bool
	expectsSetQuota                  bool
	deltaExpectedPodQuotaCount       int
	deltaExpectedDirQuotaCount       int
	deltaExpectedQuotaPodCount       int
	deltaExpectedDirPodCount         int
	deltaExpectedDevApplierCount     int
	deltaExpectedDirApplierCount     int
	deltaExpectedPodDirCountCount    int
	deltaExpectedQuotaSizeCount      int
	deltaExpectedSupportsQuotasCount int
	deltaExpectedBackingDevCount     int
	deltaExpectedMountpointCount     int
}

const (
	projectsHeader = `# This is a /etc/projects header
1048578:/quota/d
`
	projects1 = `1048577:/quota1/a
`
	projects2 = `1048577:/quota1/a
1048580:/quota1/b
`
	projects3 = `1048577:/quota1/a
1048580:/quota1/b
1048581:/quota2/b
`
	projects4 = `1048577:/quota1/a
1048581:/quota2/b
`
	projects5 = `1048581:/quota2/b
`

	projidHeader = `# This is a /etc/projid header
xxxxxx:1048579
`
	projid1 = `volume1048577:1048577
`
	projid2 = `volume1048577:1048577
volume1048580:1048580
`
	projid3 = `volume1048577:1048577
volume1048580:1048580
volume1048581:1048581
`
	projid4 = `volume1048577:1048577
volume1048581:1048581
`
	projid5 = `volume1048581:1048581
`
)

var quotaTestCases = []quotaTestCase{
	{
		"SupportsQuotaOnQuotaVolume",
		"/quota1/a", "", 1024, "Supports", "", "",
		true, true, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1,
	},
	{
		"AssignQuotaFirstTime",
		"/quota1/a", "", 1024, "Set", projects1, projid1,
		true, true, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0,
	},
	{
		"AssignQuotaFirstTime",
		"/quota1/b", "x", 1024, "Set", projects2, projid2,
		true, true, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1,
	},
	{
		"AssignQuotaFirstTime",
		"/quota2/b", "x", 1024, "Set", projects3, projid3,
		true, true, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
	},
	{
		"AssignQuotaSecondTimeWithSameSize",
		"/quota1/b", "x", 1024, "Set", projects3, projid3,
		true, true, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	},
	{
		"AssignQuotaSecondTimeWithDifferentSize",
		"/quota2/b", "x", 2048, "Set", projects3, projid3,
		true, false, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	},
	{
		"ClearQuotaFirstTime",
		"/quota1/b", "", 1024, "Clear", projects4, projid4,
		true, true, -1, -1, -1, -1, 0, -1, -1, -1, -1, -1, -1,
	},
	{
		"SupportsQuotaOnNonQuotaVolume",
		"/noquota/a", "", 1024, "Supports", projects4, projid4,
		false, false, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	},
	{
		"ClearQuotaFirstTime",
		"/quota1/a", "", 1024, "Clear", projects5, projid5,
		true, true, -1, -1, -1, -1, 0, -1, -1, -1, -1, -1, -1,
	},
	{
		"ClearQuotaSecondTime",
		"/quota1/a", "", 1024, "Clear", projects5, projid5,
		true, false, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	},
	{
		"ClearQuotaFirstTime",
		"/quota2/b", "", 1024, "Clear", "", "",
		true, true, -1, -1, -1, -1, 0, -1, -1, -1, -1, -1, -1,
	},
}

func compareProjectsFiles(t *testing.T, testcase quotaTestCase, projectsFile string, projidFile string, enabled bool) {
	bytes, err := os.ReadFile(projectsFile)
	if err != nil {
		t.Error(err.Error())
	} else {
		s := string(bytes)
		p := projectsHeader
		if enabled {
			p += testcase.expectedProjects
		}
		if s != p {
			t.Errorf("Case %v /etc/projects miscompare: expected\n`%s`\ngot\n`%s`\n", testcase.path, p, s)
		}
	}
	bytes, err = os.ReadFile(projidFile)
	if err != nil {
		t.Error(err.Error())
	} else {
		s := string(bytes)
		p := projidHeader
		if enabled {
			p += testcase.expectedProjid
		}
		if s != p {
			t.Errorf("Case %v /etc/projid miscompare: expected\n`%s`\ngot\n`%s`\n", testcase.path, p, s)
		}
	}
}

func runCaseEnabled(t *testing.T, testcase quotaTestCase, seq int) bool {
	fail := false
	var err error
	switch testcase.op {
	case "Supports":
		supports, err := fakeSupportsQuotas(testcase.path)
		if err != nil {
			fail = true
			t.Errorf("Case %v (%s, %s, %v) Got error in fakeSupportsQuotas: %v", seq, testcase.name, testcase.path, true, err)
		}
		if supports != testcase.supportsQuota {
			fail = true
			t.Errorf("Case %v (%s, %s, %v) fakeSupportsQuotas got %v, expect %v", seq, testcase.name, testcase.path, true, supports, testcase.supportsQuota)
		}
		return fail
	case "Set":
		err = fakeAssignQuota(testcase.path, testcase.poduid, testcase.bytes)
	case "Clear":
		err = fakeClearQuota(testcase.path)
	case "GetConsumption":
		_, err = GetConsumption(testcase.path)
	case "GetInodes":
		_, err = GetInodes(testcase.path)
	default:
		t.Errorf("Case %v (%s, %s, %v) unknown operation %s", seq, testcase.name, testcase.path, true, testcase.op)
		return true
	}
	if err != nil && testcase.expectsSetQuota {
		fail = true
		t.Errorf("Case %v (%s, %s, %v) %s expected to clear quota but failed %v", seq, testcase.name, testcase.path, true, testcase.op, err)
	} else if err == nil && !testcase.expectsSetQuota {
		fail = true
		t.Errorf("Case %v (%s, %s, %v) %s expected not to clear quota but succeeded", seq, testcase.name, testcase.path, true, testcase.op)
	}
	return fail
}

func runCaseDisabled(t *testing.T, testcase quotaTestCase, seq int) bool {
	var err error
	var supports bool
	switch testcase.op {
	case "Supports":
		if supports, _ = fakeSupportsQuotas(testcase.path); supports {
			t.Errorf("Case %v (%s, %s, %v) supports quotas but shouldn't", seq, testcase.name, testcase.path, false)
			return true
		}
		return false
	case "Set":
		err = fakeAssignQuota(testcase.path, testcase.poduid, testcase.bytes)
	case "Clear":
		err = fakeClearQuota(testcase.path)
	case "GetConsumption":
		_, err = GetConsumption(testcase.path)
	case "GetInodes":
		_, err = GetInodes(testcase.path)
	default:
		t.Errorf("Case %v (%s, %s, %v) unknown operation %s", seq, testcase.name, testcase.path, false, testcase.op)
		return true
	}
	if err == nil {
		t.Errorf("Case %v (%s, %s, %v) %s: supports quotas but shouldn't", seq, testcase.name, testcase.path, false, testcase.op)
		return true
	}
	return false
}

func testAddRemoveQuotas(t *testing.T, enabled bool) {
	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.LocalStorageCapacityIsolationFSQuotaMonitoring, enabled)()
	tmpProjectsFile, err := os.CreateTemp("", "projects")
	if err == nil {
		_, err = tmpProjectsFile.WriteString(projectsHeader)
	}
	if err != nil {
		t.Errorf("Unable to create fake projects file")
	}
	projectsFile = tmpProjectsFile.Name()
	tmpProjectsFile.Close()
	tmpProjidFile, err := os.CreateTemp("", "projid")
	if err == nil {
		_, err = tmpProjidFile.WriteString(projidHeader)
	}
	if err != nil {
		t.Errorf("Unable to create fake projid file")
	}
	projidFile = tmpProjidFile.Name()
	tmpProjidFile.Close()
	providers = []common.LinuxVolumeQuotaProvider{
		&VolumeProvider1{},
		&VolumeProvider2{},
	}
	for k := range podQuotaMap {
		delete(podQuotaMap, k)
	}
	for k := range dirQuotaMap {
		delete(dirQuotaMap, k)
	}
	for k := range quotaPodMap {
		delete(quotaPodMap, k)
	}
	for k := range dirPodMap {
		delete(dirPodMap, k)
	}
	for k := range devApplierMap {
		delete(devApplierMap, k)
	}
	for k := range dirApplierMap {
		delete(dirApplierMap, k)
	}
	for k := range podDirCountMap {
		delete(podDirCountMap, k)
	}
	for k := range quotaSizeMap {
		delete(quotaSizeMap, k)
	}
	for k := range supportsQuotasMap {
		delete(supportsQuotasMap, k)
	}
	for k := range backingDevMap {
		delete(backingDevMap, k)
	}
	for k := range mountpointMap {
		delete(mountpointMap, k)
	}
	for k := range testIDQuotaMap {
		delete(testIDQuotaMap, k)
	}
	for k := range testQuotaIDMap {
		delete(testQuotaIDMap, k)
	}
	expectedPodQuotaCount := 0
	expectedDirQuotaCount := 0
	expectedQuotaPodCount := 0
	expectedDirPodCount := 0
	expectedDevApplierCount := 0
	expectedDirApplierCount := 0
	expectedPodDirCountCount := 0
	expectedQuotaSizeCount := 0
	expectedSupportsQuotasCount := 0
	expectedBackingDevCount := 0
	expectedMountpointCount := 0
	for seq, testcase := range quotaTestCases {
		if enabled {
			expectedPodQuotaCount += testcase.deltaExpectedPodQuotaCount
			expectedDirQuotaCount += testcase.deltaExpectedDirQuotaCount
			expectedQuotaPodCount += testcase.deltaExpectedQuotaPodCount
			expectedDirPodCount += testcase.deltaExpectedDirPodCount
			expectedDevApplierCount += testcase.deltaExpectedDevApplierCount
			expectedDirApplierCount += testcase.deltaExpectedDirApplierCount
			expectedPodDirCountCount += testcase.deltaExpectedPodDirCountCount
			expectedQuotaSizeCount += testcase.deltaExpectedQuotaSizeCount
			expectedSupportsQuotasCount += testcase.deltaExpectedSupportsQuotasCount
			expectedBackingDevCount += testcase.deltaExpectedBackingDevCount
			expectedMountpointCount += testcase.deltaExpectedMountpointCount
		}
		fail := false
		if enabled {
			fail = runCaseEnabled(t, testcase, seq)
		} else {
			fail = runCaseDisabled(t, testcase, seq)
		}

		compareProjectsFiles(t, testcase, projectsFile, projidFile, enabled)
		if len(podQuotaMap) != expectedPodQuotaCount {
			fail = true
			t.Errorf("Case %v (%s, %s, %v) podQuotaCount mismatch: got %v, expect %v", seq, testcase.name, testcase.path, enabled, len(podQuotaMap), expectedPodQuotaCount)
		}
		if len(dirQuotaMap) != expectedDirQuotaCount {
			fail = true
			t.Errorf("Case %v (%s, %s, %v) dirQuotaCount mismatch: got %v, expect %v", seq, testcase.name, testcase.path, enabled, len(dirQuotaMap), expectedDirQuotaCount)
		}
		if len(quotaPodMap) != expectedQuotaPodCount {
			fail = true
			t.Errorf("Case %v (%s, %s, %v) quotaPodCount mismatch: got %v, expect %v", seq, testcase.name, testcase.path, enabled, len(quotaPodMap), expectedQuotaPodCount)
		}
		if len(dirPodMap) != expectedDirPodCount {
			fail = true
			t.Errorf("Case %v (%s, %s, %v) dirPodCount mismatch: got %v, expect %v", seq, testcase.name, testcase.path, enabled, len(dirPodMap), expectedDirPodCount)
		}
		if len(devApplierMap) != expectedDevApplierCount {
			fail = true
			t.Errorf("Case %v (%s, %s, %v) devApplierCount mismatch: got %v, expect %v", seq, testcase.name, testcase.path, enabled, len(devApplierMap), expectedDevApplierCount)
		}
		if len(dirApplierMap) != expectedDirApplierCount {
			fail = true
			t.Errorf("Case %v (%s, %s, %v) dirApplierCount mismatch: got %v, expect %v", seq, testcase.name, testcase.path, enabled, len(dirApplierMap), expectedDirApplierCount)
		}
		if len(podDirCountMap) != expectedPodDirCountCount {
			fail = true
			t.Errorf("Case %v (%s, %s, %v) podDirCountCount mismatch: got %v, expect %v", seq, testcase.name, testcase.path, enabled, len(podDirCountMap), expectedPodDirCountCount)
		}
		if len(quotaSizeMap) != expectedQuotaSizeCount {
			fail = true
			t.Errorf("Case %v (%s, %s, %v) quotaSizeCount mismatch: got %v, expect %v", seq, testcase.name, testcase.path, enabled, len(quotaSizeMap), expectedQuotaSizeCount)
		}
		if len(supportsQuotasMap) != expectedSupportsQuotasCount {
			fail = true
			t.Errorf("Case %v (%s, %s, %v) supportsQuotasCount mismatch: got %v, expect %v", seq, testcase.name, testcase.path, enabled, len(supportsQuotasMap), expectedSupportsQuotasCount)
		}
		if len(backingDevMap) != expectedBackingDevCount {
			fail = true
			t.Errorf("Case %v (%s, %s, %v) BackingDevCount mismatch: got %v, expect %v", seq, testcase.name, testcase.path, enabled, len(backingDevMap), expectedBackingDevCount)
		}
		if len(mountpointMap) != expectedMountpointCount {
			fail = true
			t.Errorf("Case %v (%s, %s, %v) MountpointCount mismatch: got %v, expect %v", seq, testcase.name, testcase.path, enabled, len(mountpointMap), expectedMountpointCount)
		}
		if fail {
			logAllMaps(fmt.Sprintf("%v %s %s", seq, testcase.name, testcase.path))
		}
	}
	os.Remove(projectsFile)
	os.Remove(projidFile)
}

func TestAddRemoveQuotasEnabled(t *testing.T) {
	testAddRemoveQuotas(t, true)
}

func TestAddRemoveQuotasDisabled(t *testing.T) {
	testAddRemoveQuotas(t, false)
}