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moby--moby/graphdriver/devmapper/driver_test.go
2014-01-31 03:16:42 -07:00

882 lines
22 KiB
Go

// +build linux,amd64
package devmapper
import (
"fmt"
"github.com/dotcloud/docker/graphdriver"
"io/ioutil"
"path"
"runtime"
"strings"
"syscall"
"testing"
)
func init() {
// Reduce the size the the base fs and loopback for the tests
DefaultDataLoopbackSize = 300 * 1024 * 1024
DefaultMetaDataLoopbackSize = 200 * 1024 * 1024
DefaultBaseFsSize = 300 * 1024 * 1024
}
// denyAllDevmapper mocks all calls to libdevmapper in the unit tests, and denies them by default
func denyAllDevmapper() {
// Hijack all calls to libdevmapper with default panics.
// Authorized calls are selectively hijacked in each tests.
DmTaskCreate = func(t int) *CDmTask {
panic("DmTaskCreate: this method should not be called here")
}
DmTaskRun = func(task *CDmTask) int {
panic("DmTaskRun: this method should not be called here")
}
DmTaskSetName = func(task *CDmTask, name string) int {
panic("DmTaskSetName: this method should not be called here")
}
DmTaskSetMessage = func(task *CDmTask, message string) int {
panic("DmTaskSetMessage: this method should not be called here")
}
DmTaskSetSector = func(task *CDmTask, sector uint64) int {
panic("DmTaskSetSector: this method should not be called here")
}
DmTaskSetCookie = func(task *CDmTask, cookie *uint, flags uint16) int {
panic("DmTaskSetCookie: this method should not be called here")
}
DmTaskSetAddNode = func(task *CDmTask, addNode AddNodeType) int {
panic("DmTaskSetAddNode: this method should not be called here")
}
DmTaskSetRo = func(task *CDmTask) int {
panic("DmTaskSetRo: this method should not be called here")
}
DmTaskAddTarget = func(task *CDmTask, start, size uint64, ttype, params string) int {
panic("DmTaskAddTarget: this method should not be called here")
}
DmTaskGetInfo = func(task *CDmTask, info *Info) int {
panic("DmTaskGetInfo: this method should not be called here")
}
DmGetNextTarget = func(task *CDmTask, next uintptr, start, length *uint64, target, params *string) uintptr {
panic("DmGetNextTarget: this method should not be called here")
}
DmUdevWait = func(cookie uint) int {
panic("DmUdevWait: this method should not be called here")
}
DmSetDevDir = func(dir string) int {
panic("DmSetDevDir: this method should not be called here")
}
DmGetLibraryVersion = func(version *string) int {
panic("DmGetLibraryVersion: this method should not be called here")
}
DmLogInitVerbose = func(level int) {
panic("DmLogInitVerbose: this method should not be called here")
}
DmTaskDestroy = func(task *CDmTask) {
panic("DmTaskDestroy: this method should not be called here")
}
LogWithErrnoInit = func() {
panic("LogWithErrnoInit: this method should not be called here")
}
}
func denyAllSyscall() {
sysMount = func(source, target, fstype string, flags uintptr, data string) (err error) {
panic("sysMount: this method should not be called here")
}
sysUnmount = func(target string, flags int) (err error) {
panic("sysUnmount: this method should not be called here")
}
sysCloseOnExec = func(fd int) {
panic("sysCloseOnExec: this method should not be called here")
}
sysSyscall = func(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno) {
panic("sysSyscall: this method should not be called here")
}
// Not a syscall, but forbidding it here anyway
Mounted = func(mnt string) (bool, error) {
panic("devmapper.Mounted: this method should not be called here")
}
// osOpenFile = os.OpenFile
// osNewFile = os.NewFile
// osCreate = os.Create
// osStat = os.Stat
// osIsNotExist = os.IsNotExist
// osIsExist = os.IsExist
// osMkdirAll = os.MkdirAll
// osRemoveAll = os.RemoveAll
// osRename = os.Rename
// osReadlink = os.Readlink
// execRun = func(name string, args ...string) error {
// return exec.Command(name, args...).Run()
// }
}
func mkTestDirectory(t *testing.T) string {
dir, err := ioutil.TempDir("", "docker-test-devmapper-")
if err != nil {
t.Fatal(err)
}
return dir
}
func newDriver(t *testing.T) *Driver {
home := mkTestDirectory(t)
d, err := Init(home)
if err != nil {
t.Fatal(err)
}
return d.(*Driver)
}
func cleanup(d *Driver) {
d.Cleanup()
osRemoveAll(d.home)
}
type Set map[string]bool
func (r Set) Assert(t *testing.T, names ...string) {
for _, key := range names {
if _, exists := r[key]; !exists {
t.Fatalf("Key not set: %s", key)
}
delete(r, key)
}
if len(r) != 0 {
t.Fatalf("Unexpected keys: %v", r)
}
}
func TestInit(t *testing.T) {
var (
calls = make(Set)
taskMessages = make(Set)
taskTypes = make(Set)
home = mkTestDirectory(t)
)
defer osRemoveAll(home)
func() {
denyAllDevmapper()
DmSetDevDir = func(dir string) int {
calls["DmSetDevDir"] = true
expectedDir := "/dev"
if dir != expectedDir {
t.Fatalf("Wrong libdevmapper call\nExpected: DmSetDevDir(%v)\nReceived: DmSetDevDir(%v)\n", expectedDir, dir)
}
return 0
}
LogWithErrnoInit = func() {
calls["DmLogWithErrnoInit"] = true
}
var task1 CDmTask
DmTaskCreate = func(taskType int) *CDmTask {
calls["DmTaskCreate"] = true
taskTypes[fmt.Sprintf("%d", taskType)] = true
return &task1
}
DmTaskSetName = func(task *CDmTask, name string) int {
calls["DmTaskSetName"] = true
expectedTask := &task1
if task != expectedTask {
t.Fatalf("Wrong libdevmapper call\nExpected: DmTaskSetName(%v)\nReceived: DmTaskSetName(%v)\n", expectedTask, task)
}
// FIXME: use Set.AssertRegexp()
if !strings.HasPrefix(name, "docker-") && !strings.HasPrefix(name, "/dev/mapper/docker-") ||
!strings.HasSuffix(name, "-pool") && !strings.HasSuffix(name, "-base") {
t.Fatalf("Wrong libdevmapper call\nExpected: DmTaskSetName(%v)\nReceived: DmTaskSetName(%v)\n", "docker-...-pool", name)
}
return 1
}
DmTaskRun = func(task *CDmTask) int {
calls["DmTaskRun"] = true
expectedTask := &task1
if task != expectedTask {
t.Fatalf("Wrong libdevmapper call\nExpected: DmTaskRun(%v)\nReceived: DmTaskRun(%v)\n", expectedTask, task)
}
return 1
}
DmTaskGetInfo = func(task *CDmTask, info *Info) int {
calls["DmTaskGetInfo"] = true
expectedTask := &task1
if task != expectedTask {
t.Fatalf("Wrong libdevmapper call\nExpected: DmTaskGetInfo(%v)\nReceived: DmTaskGetInfo(%v)\n", expectedTask, task)
}
// This will crash if info is not dereferenceable
info.Exists = 0
return 1
}
DmTaskSetSector = func(task *CDmTask, sector uint64) int {
calls["DmTaskSetSector"] = true
expectedTask := &task1
if task != expectedTask {
t.Fatalf("Wrong libdevmapper call\nExpected: DmTaskSetSector(%v)\nReceived: DmTaskSetSector(%v)\n", expectedTask, task)
}
if expectedSector := uint64(0); sector != expectedSector {
t.Fatalf("Wrong libdevmapper call to DmTaskSetSector\nExpected: %v\nReceived: %v\n", expectedSector, sector)
}
return 1
}
DmTaskSetMessage = func(task *CDmTask, message string) int {
calls["DmTaskSetMessage"] = true
expectedTask := &task1
if task != expectedTask {
t.Fatalf("Wrong libdevmapper call\nExpected: DmTaskSetSector(%v)\nReceived: DmTaskSetSector(%v)\n", expectedTask, task)
}
taskMessages[message] = true
return 1
}
DmTaskDestroy = func(task *CDmTask) {
calls["DmTaskDestroy"] = true
expectedTask := &task1
if task != expectedTask {
t.Fatalf("Wrong libdevmapper call\nExpected: DmTaskDestroy(%v)\nReceived: DmTaskDestroy(%v)\n", expectedTask, task)
}
}
DmTaskAddTarget = func(task *CDmTask, start, size uint64, ttype, params string) int {
calls["DmTaskSetTarget"] = true
expectedTask := &task1
if task != expectedTask {
t.Fatalf("Wrong libdevmapper call\nExpected: DmTaskDestroy(%v)\nReceived: DmTaskDestroy(%v)\n", expectedTask, task)
}
if start != 0 {
t.Fatalf("Wrong start: %d != %d", start, 0)
}
if ttype != "thin" && ttype != "thin-pool" {
t.Fatalf("Wrong ttype: %s", ttype)
}
// Quick smoke test
if params == "" {
t.Fatalf("Params should not be empty")
}
return 1
}
fakeCookie := uint(4321)
DmTaskSetCookie = func(task *CDmTask, cookie *uint, flags uint16) int {
calls["DmTaskSetCookie"] = true
expectedTask := &task1
if task != expectedTask {
t.Fatalf("Wrong libdevmapper call\nExpected: DmTaskDestroy(%v)\nReceived: DmTaskDestroy(%v)\n", expectedTask, task)
}
if flags != 0 {
t.Fatalf("Cookie flags should be 0 (not %x)", flags)
}
*cookie = fakeCookie
return 1
}
DmUdevWait = func(cookie uint) int {
calls["DmUdevWait"] = true
if cookie != fakeCookie {
t.Fatalf("Wrong cookie: %d != %d", cookie, fakeCookie)
}
return 1
}
DmTaskSetAddNode = func(task *CDmTask, addNode AddNodeType) int {
if addNode != AddNodeOnCreate {
t.Fatalf("Wrong AddNoteType: %v (expected %v)", addNode, AddNodeOnCreate)
}
calls["DmTaskSetAddNode"] = true
return 1
}
execRun = func(name string, args ...string) error {
calls["execRun"] = true
if name != "mkfs.ext4" {
t.Fatalf("Expected %s to be executed, not %s", "mkfs.ext4", name)
}
return nil
}
driver, err := Init(home)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := driver.Cleanup(); err != nil {
t.Fatal(err)
}
}()
}()
// Put all tests in a funciton to make sure the garbage collection will
// occur.
// Call GC to cleanup runtime.Finalizers
runtime.GC()
calls.Assert(t,
"DmSetDevDir",
"DmLogWithErrnoInit",
"DmTaskSetName",
"DmTaskRun",
"DmTaskGetInfo",
"DmTaskDestroy",
"execRun",
"DmTaskCreate",
"DmTaskSetTarget",
"DmTaskSetCookie",
"DmUdevWait",
"DmTaskSetSector",
"DmTaskSetMessage",
"DmTaskSetAddNode",
)
taskTypes.Assert(t, "0", "6", "17")
taskMessages.Assert(t, "create_thin 0", "set_transaction_id 0 1")
}
func fakeInit() func(home string) (graphdriver.Driver, error) {
oldInit := Init
Init = func(home string) (graphdriver.Driver, error) {
return &Driver{
home: home,
}, nil
}
return oldInit
}
func restoreInit(init func(home string) (graphdriver.Driver, error)) {
Init = init
}
func mockAllDevmapper(calls Set) {
DmSetDevDir = func(dir string) int {
calls["DmSetDevDir"] = true
return 0
}
LogWithErrnoInit = func() {
calls["DmLogWithErrnoInit"] = true
}
DmTaskCreate = func(taskType int) *CDmTask {
calls["DmTaskCreate"] = true
return &CDmTask{}
}
DmTaskSetName = func(task *CDmTask, name string) int {
calls["DmTaskSetName"] = true
return 1
}
DmTaskRun = func(task *CDmTask) int {
calls["DmTaskRun"] = true
return 1
}
DmTaskGetInfo = func(task *CDmTask, info *Info) int {
calls["DmTaskGetInfo"] = true
return 1
}
DmTaskSetSector = func(task *CDmTask, sector uint64) int {
calls["DmTaskSetSector"] = true
return 1
}
DmTaskSetMessage = func(task *CDmTask, message string) int {
calls["DmTaskSetMessage"] = true
return 1
}
DmTaskDestroy = func(task *CDmTask) {
calls["DmTaskDestroy"] = true
}
DmTaskAddTarget = func(task *CDmTask, start, size uint64, ttype, params string) int {
calls["DmTaskSetTarget"] = true
return 1
}
DmTaskSetCookie = func(task *CDmTask, cookie *uint, flags uint16) int {
calls["DmTaskSetCookie"] = true
return 1
}
DmUdevWait = func(cookie uint) int {
calls["DmUdevWait"] = true
return 1
}
DmTaskSetAddNode = func(task *CDmTask, addNode AddNodeType) int {
calls["DmTaskSetAddNode"] = true
return 1
}
execRun = func(name string, args ...string) error {
calls["execRun"] = true
return nil
}
}
func TestDriverName(t *testing.T) {
denyAllDevmapper()
defer denyAllDevmapper()
oldInit := fakeInit()
defer restoreInit(oldInit)
d := newDriver(t)
if d.String() != "devicemapper" {
t.Fatalf("Expected driver name to be devicemapper got %s", d.String())
}
}
func TestDriverCreate(t *testing.T) {
denyAllDevmapper()
denyAllSyscall()
defer denyAllSyscall()
defer denyAllDevmapper()
calls := make(Set)
mockAllDevmapper(calls)
sysMount = func(source, target, fstype string, flags uintptr, data string) (err error) {
calls["sysMount"] = true
// FIXME: compare the exact source and target strings (inodes + devname)
if expectedSource := "/dev/mapper/docker-"; !strings.HasPrefix(source, expectedSource) {
t.Fatalf("Wrong syscall call\nExpected: Mount(%v)\nReceived: Mount(%v)\n", expectedSource, source)
}
if expectedTarget := "/tmp/docker-test-devmapper-"; !strings.HasPrefix(target, expectedTarget) {
t.Fatalf("Wrong syscall call\nExpected: Mount(%v)\nReceived: Mount(%v)\n", expectedTarget, target)
}
if expectedFstype := "ext4"; fstype != expectedFstype {
t.Fatalf("Wrong syscall call\nExpected: Mount(%v)\nReceived: Mount(%v)\n", expectedFstype, fstype)
}
if expectedFlags := uintptr(3236757504); flags != expectedFlags {
t.Fatalf("Wrong syscall call\nExpected: Mount(%v)\nReceived: Mount(%v)\n", expectedFlags, flags)
}
return nil
}
Mounted = func(mnt string) (bool, error) {
calls["Mounted"] = true
if !strings.HasPrefix(mnt, "/tmp/docker-test-devmapper-") || !strings.HasSuffix(mnt, "/mnt/1") {
t.Fatalf("Wrong mounted call\nExpected: Mounted(%v)\nReceived: Mounted(%v)\n", "/tmp/docker-test-devmapper-.../mnt/1", mnt)
}
return false, nil
}
sysSyscall = func(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno) {
calls["sysSyscall"] = true
if trap != sysSysIoctl {
t.Fatalf("Unexpected syscall. Expecting SYS_IOCTL, received: %d", trap)
}
switch a2 {
case LoopSetFd:
calls["ioctl.loopsetfd"] = true
case LoopCtlGetFree:
calls["ioctl.loopctlgetfree"] = true
case LoopGetStatus64:
calls["ioctl.loopgetstatus"] = true
case LoopSetStatus64:
calls["ioctl.loopsetstatus"] = true
case LoopClrFd:
calls["ioctl.loopclrfd"] = true
case LoopSetCapacity:
calls["ioctl.loopsetcapacity"] = true
case BlkGetSize64:
calls["ioctl.blkgetsize"] = true
default:
t.Fatalf("Unexpected IOCTL. Received %d", a2)
}
return 0, 0, 0
}
func() {
d := newDriver(t)
calls.Assert(t,
"DmSetDevDir",
"DmLogWithErrnoInit",
"DmTaskSetName",
"DmTaskRun",
"DmTaskGetInfo",
"execRun",
"DmTaskCreate",
"DmTaskSetTarget",
"DmTaskSetCookie",
"DmUdevWait",
"DmTaskSetSector",
"DmTaskSetMessage",
"DmTaskSetAddNode",
"sysSyscall",
"ioctl.blkgetsize",
"ioctl.loopsetfd",
"ioctl.loopsetstatus",
)
if err := d.Create("1", ""); err != nil {
t.Fatal(err)
}
calls.Assert(t,
"DmTaskCreate",
"DmTaskGetInfo",
"sysMount",
"Mounted",
"DmTaskRun",
"DmTaskSetTarget",
"DmTaskSetSector",
"DmTaskSetCookie",
"DmUdevWait",
"DmTaskSetName",
"DmTaskSetMessage",
"DmTaskSetAddNode",
)
}()
runtime.GC()
calls.Assert(t,
"DmTaskDestroy",
)
}
func TestDriverRemove(t *testing.T) {
denyAllDevmapper()
denyAllSyscall()
defer denyAllSyscall()
defer denyAllDevmapper()
calls := make(Set)
mockAllDevmapper(calls)
sysMount = func(source, target, fstype string, flags uintptr, data string) (err error) {
calls["sysMount"] = true
// FIXME: compare the exact source and target strings (inodes + devname)
if expectedSource := "/dev/mapper/docker-"; !strings.HasPrefix(source, expectedSource) {
t.Fatalf("Wrong syscall call\nExpected: Mount(%v)\nReceived: Mount(%v)\n", expectedSource, source)
}
if expectedTarget := "/tmp/docker-test-devmapper-"; !strings.HasPrefix(target, expectedTarget) {
t.Fatalf("Wrong syscall call\nExpected: Mount(%v)\nReceived: Mount(%v)\n", expectedTarget, target)
}
if expectedFstype := "ext4"; fstype != expectedFstype {
t.Fatalf("Wrong syscall call\nExpected: Mount(%v)\nReceived: Mount(%v)\n", expectedFstype, fstype)
}
if expectedFlags := uintptr(3236757504); flags != expectedFlags {
t.Fatalf("Wrong syscall call\nExpected: Mount(%v)\nReceived: Mount(%v)\n", expectedFlags, flags)
}
return nil
}
sysUnmount = func(target string, flags int) (err error) {
calls["sysUnmount"] = true
// FIXME: compare the exact source and target strings (inodes + devname)
if expectedTarget := "/tmp/docker-test-devmapper-"; !strings.HasPrefix(target, expectedTarget) {
t.Fatalf("Wrong syscall call\nExpected: Mount(%v)\nReceived: Mount(%v)\n", expectedTarget, target)
}
if expectedFlags := 0; flags != expectedFlags {
t.Fatalf("Wrong syscall call\nExpected: Mount(%v)\nReceived: Mount(%v)\n", expectedFlags, flags)
}
return nil
}
Mounted = func(mnt string) (bool, error) {
calls["Mounted"] = true
return false, nil
}
sysSyscall = func(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno) {
calls["sysSyscall"] = true
if trap != sysSysIoctl {
t.Fatalf("Unexpected syscall. Expecting SYS_IOCTL, received: %d", trap)
}
switch a2 {
case LoopSetFd:
calls["ioctl.loopsetfd"] = true
case LoopCtlGetFree:
calls["ioctl.loopctlgetfree"] = true
case LoopGetStatus64:
calls["ioctl.loopgetstatus"] = true
case LoopSetStatus64:
calls["ioctl.loopsetstatus"] = true
case LoopClrFd:
calls["ioctl.loopclrfd"] = true
case LoopSetCapacity:
calls["ioctl.loopsetcapacity"] = true
case BlkGetSize64:
calls["ioctl.blkgetsize"] = true
default:
t.Fatalf("Unexpected IOCTL. Received %d", a2)
}
return 0, 0, 0
}
func() {
d := newDriver(t)
calls.Assert(t,
"DmSetDevDir",
"DmLogWithErrnoInit",
"DmTaskSetName",
"DmTaskRun",
"DmTaskGetInfo",
"execRun",
"DmTaskCreate",
"DmTaskSetTarget",
"DmTaskSetCookie",
"DmUdevWait",
"DmTaskSetSector",
"DmTaskSetMessage",
"DmTaskSetAddNode",
"sysSyscall",
"ioctl.blkgetsize",
"ioctl.loopsetfd",
"ioctl.loopsetstatus",
)
if err := d.Create("1", ""); err != nil {
t.Fatal(err)
}
calls.Assert(t,
"DmTaskCreate",
"DmTaskGetInfo",
"sysMount",
"Mounted",
"DmTaskRun",
"DmTaskSetTarget",
"DmTaskSetSector",
"DmTaskSetCookie",
"DmUdevWait",
"DmTaskSetName",
"DmTaskSetMessage",
"DmTaskSetAddNode",
)
Mounted = func(mnt string) (bool, error) {
calls["Mounted"] = true
return true, nil
}
if err := d.Remove("1"); err != nil {
t.Fatal(err)
}
calls.Assert(t,
"DmTaskRun",
"DmTaskSetSector",
"DmTaskSetName",
"DmTaskSetMessage",
"DmTaskCreate",
"DmTaskGetInfo",
"DmTaskSetCookie",
"DmTaskSetTarget",
"DmTaskSetAddNode",
"DmUdevWait",
"Mounted",
"sysUnmount",
)
}()
runtime.GC()
calls.Assert(t,
"DmTaskDestroy",
)
}
func TestCleanup(t *testing.T) {
t.Skip("FIXME: not a unit test")
t.Skip("Unimplemented")
d := newDriver(t)
defer osRemoveAll(d.home)
mountPoints := make([]string, 2)
if err := d.Create("1", ""); err != nil {
t.Fatal(err)
}
// Mount the id
p, err := d.Get("1")
if err != nil {
t.Fatal(err)
}
mountPoints[0] = p
if err := d.Create("2", "1"); err != nil {
t.Fatal(err)
}
p, err = d.Get("2")
if err != nil {
t.Fatal(err)
}
mountPoints[1] = p
// Ensure that all the mount points are currently mounted
for _, p := range mountPoints {
if mounted, err := Mounted(p); err != nil {
t.Fatal(err)
} else if !mounted {
t.Fatalf("Expected %s to be mounted", p)
}
}
// Ensure that devices are active
for _, p := range []string{"1", "2"} {
if !d.HasActivatedDevice(p) {
t.Fatalf("Expected %s to have an active device", p)
}
}
if err := d.Cleanup(); err != nil {
t.Fatal(err)
}
// Ensure that all the mount points are no longer mounted
for _, p := range mountPoints {
if mounted, err := Mounted(p); err != nil {
t.Fatal(err)
} else if mounted {
t.Fatalf("Expected %s to not be mounted", p)
}
}
// Ensure that devices are no longer activated
for _, p := range []string{"1", "2"} {
if d.HasActivatedDevice(p) {
t.Fatalf("Expected %s not be an active device", p)
}
}
}
func TestNotMounted(t *testing.T) {
t.Skip("FIXME: not a unit test")
t.Skip("Not implemented")
d := newDriver(t)
defer cleanup(d)
if err := d.Create("1", ""); err != nil {
t.Fatal(err)
}
mounted, err := Mounted(path.Join(d.home, "mnt", "1"))
if err != nil {
t.Fatal(err)
}
if mounted {
t.Fatal("Id 1 should not be mounted")
}
}
func TestMounted(t *testing.T) {
t.Skip("FIXME: not a unit test")
d := newDriver(t)
defer cleanup(d)
if err := d.Create("1", ""); err != nil {
t.Fatal(err)
}
if _, err := d.Get("1"); err != nil {
t.Fatal(err)
}
mounted, err := Mounted(path.Join(d.home, "mnt", "1"))
if err != nil {
t.Fatal(err)
}
if !mounted {
t.Fatal("Id 1 should be mounted")
}
}
func TestInitCleanedDriver(t *testing.T) {
t.Skip("FIXME: not a unit test")
d := newDriver(t)
if err := d.Create("1", ""); err != nil {
t.Fatal(err)
}
if _, err := d.Get("1"); err != nil {
t.Fatal(err)
}
if err := d.Cleanup(); err != nil {
t.Fatal(err)
}
driver, err := Init(d.home)
if err != nil {
t.Fatal(err)
}
d = driver.(*Driver)
defer cleanup(d)
if _, err := d.Get("1"); err != nil {
t.Fatal(err)
}
}
func TestMountMountedDriver(t *testing.T) {
t.Skip("FIXME: not a unit test")
d := newDriver(t)
defer cleanup(d)
if err := d.Create("1", ""); err != nil {
t.Fatal(err)
}
// Perform get on same id to ensure that it will
// not be mounted twice
if _, err := d.Get("1"); err != nil {
t.Fatal(err)
}
if _, err := d.Get("1"); err != nil {
t.Fatal(err)
}
}
func TestGetReturnsValidDevice(t *testing.T) {
t.Skip("FIXME: not a unit test")
d := newDriver(t)
defer cleanup(d)
if err := d.Create("1", ""); err != nil {
t.Fatal(err)
}
if !d.HasDevice("1") {
t.Fatalf("Expected id 1 to be in device set")
}
if _, err := d.Get("1"); err != nil {
t.Fatal(err)
}
if !d.HasActivatedDevice("1") {
t.Fatalf("Expected id 1 to be activated")
}
if !d.HasInitializedDevice("1") {
t.Fatalf("Expected id 1 to be initialized")
}
}
func TestDriverGetSize(t *testing.T) {
t.Skip("FIXME: not a unit test")
t.Skipf("Size is currently not implemented")
d := newDriver(t)
defer cleanup(d)
if err := d.Create("1", ""); err != nil {
t.Fatal(err)
}
mountPoint, err := d.Get("1")
if err != nil {
t.Fatal(err)
}
size := int64(1024)
f, err := osCreate(path.Join(mountPoint, "test_file"))
if err != nil {
t.Fatal(err)
}
if err := f.Truncate(size); err != nil {
t.Fatal(err)
}
f.Close()
// diffSize, err := d.DiffSize("1")
// if err != nil {
// t.Fatal(err)
// }
// if diffSize != size {
// t.Fatalf("Expected size %d got %d", size, diffSize)
// }
}
func assertMap(t *testing.T, m map[string]bool, keys ...string) {
for _, key := range keys {
if _, exists := m[key]; !exists {
t.Fatalf("Key not set: %s", key)
}
delete(m, key)
}
if len(m) != 0 {
t.Fatalf("Unexpected keys: %v", m)
}
}