return
	}
	got, err := io.ReadAll(rw)
	if err != nil {
		t.Errorf("%v: OpenRaw ReadAll error=%v", f.Name, err)
		return
	}
	end := uint64(start) + f.CompressedSize64
	want := raw[start:end]
	if !bytes.Equal(got, want) {
		t.Logf("got %q", got)
		t.Logf("want %q", want)
		t.Errorf("%v: OpenRaw returned unexpected bytes", f.Name)
		return
	}

	r, err := f.Open()