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moby--moby/pkg/mount/mount_unix_test.go
Sebastiaan van Stijn 744f1c261c
Remove unused functions, variables, fields
opts/env_test: suppress a linter warning

this one:

> opts/env_test.go:95:4: U1000: field `err` is unused (unused)
> 			err      error
>			^

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2019-09-18 12:57:12 +02:00

170 lines
3.4 KiB
Go

// +build !windows
package mount // import "github.com/docker/docker/pkg/mount"
import (
"os"
"path"
"testing"
)
func TestMountOptionsParsing(t *testing.T) {
options := "noatime,ro,size=10k"
flag, data := parseOptions(options)
if data != "size=10k" {
t.Fatalf("Expected size=10 got %s", data)
}
expectedFlag := NOATIME | RDONLY
if flag != expectedFlag {
t.Fatalf("Expected %d got %d", expectedFlag, flag)
}
}
func TestMounted(t *testing.T) {
if os.Getuid() != 0 {
t.Skip("root required")
}
tmp := path.Join(os.TempDir(), "mount-tests")
if err := os.MkdirAll(tmp, 0777); err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tmp)
var (
sourceDir = path.Join(tmp, "source")
targetDir = path.Join(tmp, "target")
sourcePath = path.Join(sourceDir, "file.txt")
targetPath = path.Join(targetDir, "file.txt")
)
os.Mkdir(sourceDir, 0777)
os.Mkdir(targetDir, 0777)
f, err := os.Create(sourcePath)
if err != nil {
t.Fatal(err)
}
f.WriteString("hello")
f.Close()
f, err = os.Create(targetPath)
if err != nil {
t.Fatal(err)
}
f.Close()
if err := Mount(sourceDir, targetDir, "none", "bind,rw"); err != nil {
t.Fatal(err)
}
defer func() {
if err := Unmount(targetDir); err != nil {
t.Fatal(err)
}
}()
mounted, err := Mounted(targetDir)
if err != nil {
t.Fatal(err)
}
if !mounted {
t.Fatalf("Expected %s to be mounted", targetDir)
}
if _, err := os.Stat(targetDir); err != nil {
t.Fatal(err)
}
}
func TestMountReadonly(t *testing.T) {
if os.Getuid() != 0 {
t.Skip("root required")
}
tmp := path.Join(os.TempDir(), "mount-tests")
if err := os.MkdirAll(tmp, 0777); err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tmp)
var (
sourceDir = path.Join(tmp, "source")
targetDir = path.Join(tmp, "target")
sourcePath = path.Join(sourceDir, "file.txt")
targetPath = path.Join(targetDir, "file.txt")
)
os.Mkdir(sourceDir, 0777)
os.Mkdir(targetDir, 0777)
f, err := os.Create(sourcePath)
if err != nil {
t.Fatal(err)
}
f.WriteString("hello")
f.Close()
f, err = os.Create(targetPath)
if err != nil {
t.Fatal(err)
}
f.Close()
if err := Mount(sourceDir, targetDir, "none", "bind,ro"); err != nil {
t.Fatal(err)
}
defer func() {
if err := Unmount(targetDir); err != nil {
t.Fatal(err)
}
}()
_, err = os.OpenFile(targetPath, os.O_RDWR, 0777)
if err == nil {
t.Fatal("Should not be able to open a ro file as rw")
}
}
func TestGetMounts(t *testing.T) {
mounts, err := GetMounts(nil)
if err != nil {
t.Fatal(err)
}
root := false
for _, entry := range mounts {
if entry.Mountpoint == "/" {
root = true
}
}
if !root {
t.Fatal("/ should be mounted at least")
}
}
func TestMergeTmpfsOptions(t *testing.T) {
options := []string{"noatime", "ro", "size=10k", "defaults", "atime", "defaults", "rw", "rprivate", "size=1024k", "slave"}
expected := []string{"atime", "rw", "size=1024k", "slave"}
merged, err := MergeTmpfsOptions(options)
if err != nil {
t.Fatal(err)
}
if len(expected) != len(merged) {
t.Fatalf("Expected %s got %s", expected, merged)
}
for index := range merged {
if merged[index] != expected[index] {
t.Fatalf("Expected %s for the %dth option, got %s", expected, index, merged)
}
}
options = []string{"noatime", "ro", "size=10k", "atime", "rw", "rprivate", "size=1024k", "slave", "size"}
_, err = MergeTmpfsOptions(options)
if err == nil {
t.Fatal("Expected error got nil")
}
}