@Test
public void testAddSong() {
client.addSong("1", "Feeling Groovy", "Simon and Garfunkel", "1966");
List<Song> songs = client.getSongs();
assertEquals(1,songs.size());
Song s = songs.get(0);
assertEquals("Feeling Groovy",s.getTitle());
assertEquals("Simon and Garfunkel",s.getArtist());
assertEquals("1966",s.getYear());
assertEquals("1", s.getId());
}