if err != nil {
		t.Fatal(err)
	}
	var u unexported
	_, err = Unmarshal(bs, &u)
	if err != want {
		t.Errorf("got %v, want %v", err, want)
	}
}

func TestNull(t *testing.T) {
	marshaled, err := Marshal(NullRawValue)
	if err != nil {
		t.Fatal(err)
	}
	if !bytes.Equal(NullBytes, marshaled) {