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package root_test
import (
"os"
"os/exec"
"path/filepath"
"syscall"
"testing"
"github.com/rfjakob/gocryptfs/v2/internal/syscallcompat"
"github.com/rfjakob/gocryptfs/v2/tests/test_helpers"
)
// TestBtrfsQuirks needs root permissions because it creates a loop disk
func TestBtrfsQuirks(t *testing.T) {
if os.Getuid() != 0 {
t.Skip("must run as root")
}
img := filepath.Join(test_helpers.TmpDir, t.Name()+".img")
f, err := os.Create(img)
if err != nil {
t.Fatal(err)
}
defer f.Close()
// minimum size for each btrfs device is 114294784
err = f.Truncate(200 * 1024 * 1024)
if err != nil {
t.Fatal(err)
}
// Format as Btrfs
_, err = exec.LookPath("mkfs.btrfs")
if err != nil {
t.Skip("mkfs.btrfs not found, skipping test")
}
cmd := exec.Command("mkfs.btrfs", img)
out, err := cmd.CombinedOutput()
if err != nil {
t.Logf("%q", cmd.Args)
t.Log(string(out))
t.Fatal(err)
}
// Mount
mnt := img + ".mnt"
err = os.Mkdir(mnt, 0600)
if err != nil {
t.Fatal(err)
}
cmd = exec.Command("mount", img, mnt)
out, err = cmd.CombinedOutput()
if err != nil {
t.Log(string(out))
t.Fatal(err)
}
defer syscall.Unlink(img)
defer syscall.Unmount(mnt, 0)
quirk := syscallcompat.DetectQuirks(mnt)
if quirk != syscallcompat.QuirkBrokenFalloc {
t.Errorf("wrong quirk: %v", quirk)
}
}
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