@Test(expected = NullPointerException.class)
public void ensureSongNullNameThrows() {

    Track.builder().setUri(Uri.parse("content://test/m/1"))
            .setParentUri(Uri.parse("content://test/m"))
            .addRes(Track.Res.builder().setUri(Uri.parse("http://example.com/song1")).build()).build();
}