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package syscallcompat
import (
"os"
"testing"
"golang.org/x/sys/unix"
)
func TestEmulateMknodat(t *testing.T) {
err := emulateMknodat(tmpDirFd, "fifo1", unix.S_IFIFO, 0)
if err != nil {
t.Fatal(err)
}
_, err = os.Stat(tmpDir + "/fifo1")
if err != nil {
t.Fatal(err)
}
// Test with absolute path
err = emulateMknodat(-1, tmpDir+"/fifo2", unix.S_IFIFO, 0)
if err != nil {
t.Fatal(err)
}
_, err = os.Stat(tmpDir + "/fifo2")
if err != nil {
t.Fatal(err)
}
}
func TestEmulateFstatat(t *testing.T) {
var st unix.Stat_t
// stat a normal file (size 3)
f, err := os.Create(tmpDir + "/fstatat")
if err != nil {
t.Fatal(err)
}
_, err = f.Write([]byte("foo"))
if err != nil {
t.Fatal(err)
}
f.Close()
err = emulateFstatat(tmpDirFd, "fstatat", &st, unix.AT_SYMLINK_NOFOLLOW)
if err != nil {
t.Fatal(err)
}
if st.Size != 3 {
t.Errorf("wrong file size: %d", st.Size)
}
// stat a symlink and check that the size matches the length of the
// symlink target. This proves that we have stat'ed the symlink itself.
err = os.Symlink(tmpDir+"/fstatat", tmpDir+"/fstatatSymlink")
if err != nil {
t.Fatal(err)
}
err = emulateFstatat(tmpDirFd, "fstatatSymlink", &st, unix.AT_SYMLINK_NOFOLLOW)
if err != nil {
t.Fatal(err)
}
expectedSize := int64(len(tmpDir + "/fstatat"))
if st.Size != expectedSize {
t.Errorf("symlink size: expected=%d, got=%d", expectedSize, st.Size)
}
}
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