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|
package mount
import (
"os"
"path"
"syscall"
"testing"
)
func TestMountOptionsParsing(t *testing.T) {
options := "bind,ro,size=10k"
flag, data := parseOptions(options)
if data != "size=10k" {
t.Fatalf("Expected size=10 got %s", data)
}
expectedFlag := syscall.MS_BIND | syscall.MS_RDONLY
if flag != expectedFlag {
t.Fatalf("Expected %d got %d", expectedFlag, flag)
}
}
func TestMounted(t *testing.T) {
tmp := path.Join(os.TempDir(), "mount-tests")
if err := os.MkdirAll(tmp, 0777); err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tmp)
var (
sourcePath = path.Join(tmp, "sourcefile.txt")
targetPath = path.Join(tmp, "targetfile.txt")
)
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(sourcePath, targetPath, "none", "bind,rw"); err != nil {
t.Fatal(err)
}
defer func() {
if err := Unmount(targetPath); err != nil {
t.Fatal(err)
}
}()
mounted, err := Mounted(targetPath)
if err != nil {
t.Fatal(err)
}
if !mounted {
t.Fatalf("Expected %s to be mounted", targetPath)
}
if _, err := os.Stat(targetPath); err != nil {
t.Fatal(err)
}
}
func TestMountReadonly(t *testing.T) {
tmp := path.Join(os.TempDir(), "mount-tests")
if err := os.MkdirAll(tmp, 0777); err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tmp)
var (
sourcePath = path.Join(tmp, "sourcefile.txt")
targetPath = path.Join(tmp, "targetfile.txt")
)
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(sourcePath, targetPath, "none", "bind,ro"); err != nil {
t.Fatal(err)
}
defer func() {
if err := Unmount(targetPath); err != nil {
t.Fatal(err)
}
}()
f, err = os.OpenFile(targetPath, os.O_RDWR, 0777)
if err == nil {
t.Fatal("Should not be able to open a ro file as rw")
}
}
|
