devicemapper: Remove non-general tests

Now that we have the generic graphtest tests that actually tests
the driver we can remove the old mock-using tests. Almost all of
these tests were disabled anyway, and the four remaining ones
didn't really test much while at the same time being really
fragile and making the rest of the code more complex due to
the mocking setup.

Docker-DCO-1.1-Signed-off-by: Alexander Larsson <alexl@redhat.com> (github: alexlarsson)
This commit is contained in:
Alexander Larsson 2014-05-16 12:46:28 +02:00
parent 08a7bcf5db
commit bd6fd25dfb
2 changed files with 18 additions and 1207 deletions

View File

@ -3,285 +3,35 @@
package devmapper
import (
"github.com/dotcloud/docker/daemon/graphdriver/graphtest"
"testing"
)
func TestTaskCreate(t *testing.T) {
t.Skip("FIXME: not a unit test")
// Test success
taskCreate(t, DeviceInfo)
// Test Failure
DmTaskCreate = dmTaskCreateFail
defer func() { DmTaskCreate = dmTaskCreateFct }()
if task := TaskCreate(-1); task != nil {
t.Fatalf("An error should have occured while creating an invalid task.")
}
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
}
func TestTaskRun(t *testing.T) {
t.Skip("FIXME: not a unit test")
task := taskCreate(t, DeviceInfo)
// Test success
// Perform the RUN
if err := task.Run(); err != nil {
t.Fatal(err)
}
// Make sure we don't have error with GetInfo
if _, err := task.GetInfo(); err != nil {
t.Fatal(err)
}
// Test failure
DmTaskRun = dmTaskRunFail
defer func() { DmTaskRun = dmTaskRunFct }()
task = taskCreate(t, DeviceInfo)
// Perform the RUN
if err := task.Run(); err != ErrTaskRun {
t.Fatalf("An error should have occured while running task.")
}
// Make sure GetInfo also fails
if _, err := task.GetInfo(); err != ErrTaskGetInfo {
t.Fatalf("GetInfo should fail if task.Run() failed.")
}
// This avoids creating a new driver for each test if all tests are run
// Make sure to put new tests between TestDevmapperSetup and TestDevmapperTeardown
func TestDevmapperSetup(t *testing.T) {
graphtest.GetDriver(t, "devicemapper")
}
func TestTaskSetName(t *testing.T) {
t.Skip("FIXME: not a unit test")
task := taskCreate(t, DeviceInfo)
// Test success
if err := task.SetName("test"); err != nil {
t.Fatal(err)
}
// Test failure
DmTaskSetName = dmTaskSetNameFail
defer func() { DmTaskSetName = dmTaskSetNameFct }()
if err := task.SetName("test"); err != ErrTaskSetName {
t.Fatalf("An error should have occured while runnign SetName.")
}
func TestDevmapperCreateEmpty(t *testing.T) {
graphtest.DriverTestCreateEmpty(t, "devicemapper")
}
func TestTaskSetMessage(t *testing.T) {
t.Skip("FIXME: not a unit test")
task := taskCreate(t, DeviceInfo)
// Test success
if err := task.SetMessage("test"); err != nil {
t.Fatal(err)
}
// Test failure
DmTaskSetMessage = dmTaskSetMessageFail
defer func() { DmTaskSetMessage = dmTaskSetMessageFct }()
if err := task.SetMessage("test"); err != ErrTaskSetMessage {
t.Fatalf("An error should have occured while runnign SetMessage.")
}
func TestDevmapperCreateBase(t *testing.T) {
graphtest.DriverTestCreateBase(t, "devicemapper")
}
func TestTaskSetSector(t *testing.T) {
t.Skip("FIXME: not a unit test")
task := taskCreate(t, DeviceInfo)
// Test success
if err := task.SetSector(128); err != nil {
t.Fatal(err)
}
DmTaskSetSector = dmTaskSetSectorFail
defer func() { DmTaskSetSector = dmTaskSetSectorFct }()
// Test failure
if err := task.SetSector(0); err != ErrTaskSetSector {
t.Fatalf("An error should have occured while running SetSector.")
}
func TestDevmapperCreateSnap(t *testing.T) {
graphtest.DriverTestCreateSnap(t, "devicemapper")
}
func TestTaskSetCookie(t *testing.T) {
t.Skip("FIXME: not a unit test")
var (
cookie uint = 0
task = taskCreate(t, DeviceInfo)
)
// Test success
if err := task.SetCookie(&cookie, 0); err != nil {
t.Fatal(err)
}
// Test failure
if err := task.SetCookie(nil, 0); err != ErrNilCookie {
t.Fatalf("An error should have occured while running SetCookie with nil cookie.")
}
DmTaskSetCookie = dmTaskSetCookieFail
defer func() { DmTaskSetCookie = dmTaskSetCookieFct }()
if err := task.SetCookie(&cookie, 0); err != ErrTaskSetCookie {
t.Fatalf("An error should have occured while running SetCookie.")
}
}
func TestTaskSetAddNode(t *testing.T) {
t.Skip("FIXME: not a unit test")
task := taskCreate(t, DeviceInfo)
// Test success
if err := task.SetAddNode(0); err != nil {
t.Fatal(err)
}
// Test failure
if err := task.SetAddNode(-1); err != ErrInvalidAddNode {
t.Fatalf("An error should have occured running SetAddNode with wrong node.")
}
DmTaskSetAddNode = dmTaskSetAddNodeFail
defer func() { DmTaskSetAddNode = dmTaskSetAddNodeFct }()
if err := task.SetAddNode(0); err != ErrTaskSetAddNode {
t.Fatalf("An error should have occured running SetAddNode.")
}
}
func TestTaskSetRo(t *testing.T) {
t.Skip("FIXME: not a unit test")
task := taskCreate(t, DeviceInfo)
// Test success
if err := task.SetRo(); err != nil {
t.Fatal(err)
}
// Test failure
DmTaskSetRo = dmTaskSetRoFail
defer func() { DmTaskSetRo = dmTaskSetRoFct }()
if err := task.SetRo(); err != ErrTaskSetRo {
t.Fatalf("An error should have occured running SetRo.")
}
}
func TestTaskAddTarget(t *testing.T) {
t.Skip("FIXME: not a unit test")
task := taskCreate(t, DeviceInfo)
// Test success
if err := task.AddTarget(0, 128, "thinp", ""); err != nil {
t.Fatal(err)
}
// Test failure
DmTaskAddTarget = dmTaskAddTargetFail
defer func() { DmTaskAddTarget = dmTaskAddTargetFct }()
if err := task.AddTarget(0, 128, "thinp", ""); err != ErrTaskAddTarget {
t.Fatalf("An error should have occured running AddTarget.")
}
}
// func TestTaskGetInfo(t *testing.T) {
// task := taskCreate(t, DeviceInfo)
// // Test success
// if _, err := task.GetInfo(); err != nil {
// t.Fatal(err)
// }
// // Test failure
// DmTaskGetInfo = dmTaskGetInfoFail
// defer func() { DmTaskGetInfo = dmTaskGetInfoFct }()
// if _, err := task.GetInfo(); err != ErrTaskGetInfo {
// t.Fatalf("An error should have occured running GetInfo.")
// }
// }
// func TestTaskGetNextTarget(t *testing.T) {
// task := taskCreate(t, DeviceInfo)
// if next, _, _, _, _ := task.GetNextTarget(0); next == 0 {
// t.Fatalf("The next target should not be 0.")
// }
// }
/// Utils
func taskCreate(t *testing.T, taskType TaskType) *Task {
task := TaskCreate(taskType)
if task == nil {
t.Fatalf("Error creating task")
}
return task
}
/// Failure function replacement
func dmTaskCreateFail(t int) *CDmTask {
return nil
}
func dmTaskRunFail(task *CDmTask) int {
return -1
}
func dmTaskSetNameFail(task *CDmTask, name string) int {
return -1
}
func dmTaskSetMessageFail(task *CDmTask, message string) int {
return -1
}
func dmTaskSetSectorFail(task *CDmTask, sector uint64) int {
return -1
}
func dmTaskSetCookieFail(task *CDmTask, cookie *uint, flags uint16) int {
return -1
}
func dmTaskSetAddNodeFail(task *CDmTask, addNode AddNodeType) int {
return -1
}
func dmTaskSetRoFail(task *CDmTask) int {
return -1
}
func dmTaskAddTargetFail(task *CDmTask,
start, size uint64, ttype, params string) int {
return -1
}
func dmTaskGetInfoFail(task *CDmTask, info *Info) int {
return -1
}
func dmGetNextTargetFail(task *CDmTask, next uintptr, start, length *uint64,
target, params *string) uintptr {
return 0
}
func dmAttachLoopDeviceFail(filename string, fd *int) string {
return ""
}
func sysGetBlockSizeFail(fd uintptr, size *uint64) sysErrno {
return 1
}
func dmUdevWaitFail(cookie uint) int {
return -1
}
func dmSetDevDirFail(dir string) int {
return -1
}
func dmGetLibraryVersionFail(version *string) int {
return -1
func TestDevmapperTeardown(t *testing.T) {
graphtest.PutDriver(t)
}

View File

@ -1,939 +0,0 @@
// +build linux,amd64
package devmapper
import (
"fmt"
"github.com/dotcloud/docker/daemon/graphdriver"
"github.com/dotcloud/docker/daemon/graphdriver/graphtest"
"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
}
// We use assignment here to get the right type
var (
oldMounted = Mounted
oldExecRun = execRun
)
// denyAllDevmapper mocks all calls to libdevmapper in the unit tests, and denies them by default
func denyAllDevmapper() {
oldExecRun = execRun
// 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 restoreAllDevmapper() {
DmGetLibraryVersion = dmGetLibraryVersionFct
DmGetNextTarget = dmGetNextTargetFct
DmLogInitVerbose = dmLogInitVerboseFct
DmSetDevDir = dmSetDevDirFct
DmTaskAddTarget = dmTaskAddTargetFct
DmTaskCreate = dmTaskCreateFct
DmTaskDestroy = dmTaskDestroyFct
DmTaskGetInfo = dmTaskGetInfoFct
DmTaskRun = dmTaskRunFct
DmTaskSetAddNode = dmTaskSetAddNodeFct
DmTaskSetCookie = dmTaskSetCookieFct
DmTaskSetMessage = dmTaskSetMessageFct
DmTaskSetName = dmTaskSetNameFct
DmTaskSetRo = dmTaskSetRoFct
DmTaskSetSector = dmTaskSetSectorFct
DmUdevWait = dmUdevWaitFct
LogWithErrnoInit = logWithErrnoInitFct
execRun = oldExecRun
}
func denyAllSyscall() {
oldMounted = Mounted
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 restoreAllSyscall() {
sysMount = syscall.Mount
sysUnmount = syscall.Unmount
sysCloseOnExec = syscall.CloseOnExec
sysSyscall = syscall.Syscall
Mounted = oldMounted
}
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 {
required := true
if strings.HasPrefix(key, "?") {
key = key[1:]
required = false
}
if _, exists := r[key]; !exists && required {
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)
denyAllDevmapper()
defer restoreAllDevmapper()
func() {
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 function 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 restoreAllDevmapper()
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 restoreAllSyscall()
defer restoreAllDevmapper()
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, flag int) error {
//calls["sysUnmount"] = true
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",
"?ioctl.loopctlgetfree",
)
if err := d.Create("1", ""); err != nil {
t.Fatal(err)
}
calls.Assert(t,
"DmTaskCreate",
"DmTaskGetInfo",
"DmTaskRun",
"DmTaskSetSector",
"DmTaskSetName",
"DmTaskSetMessage",
)
}()
runtime.GC()
calls.Assert(t,
"DmTaskDestroy",
)
}
func TestDriverRemove(t *testing.T) {
denyAllDevmapper()
denyAllSyscall()
defer restoreAllSyscall()
defer restoreAllDevmapper()
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) {
// 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",
"?ioctl.loopctlgetfree",
)
if err := d.Create("1", ""); err != nil {
t.Fatal(err)
}
calls.Assert(t,
"DmTaskCreate",
"DmTaskGetInfo",
"DmTaskRun",
"DmTaskSetSector",
"DmTaskSetName",
"DmTaskSetMessage",
)
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",
)
}()
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")
}
}
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)
}
}
// This avoids creating a new driver for each test if all tests are run
// Make sure to put new tests between TestDevmapperSetup and TestDevmapperTeardown
func TestDevmapperSetup(t *testing.T) {
graphtest.GetDriver(t, "devicemapper")
}
func TestDevmapperCreateEmpty(t *testing.T) {
graphtest.DriverTestCreateEmpty(t, "devicemapper")
}
func TestDevmapperCreateBase(t *testing.T) {
graphtest.DriverTestCreateBase(t, "devicemapper")
}
func TestDevmapperCreateSnap(t *testing.T) {
graphtest.DriverTestCreateSnap(t, "devicemapper")
}
func TestDevmapperTeardown(t *testing.T) {
graphtest.PutDriver(t)
}