// chordlHashCodeTest() @Test public void chordHashCodeTest() { Chord a = new Chord(new Note(2, new Pitch('C')), new Note(5, new Pitch('A'))); Music b = new Chord(new Note(2, new Pitch('D')), new Note(5, new Pitch('B'))).transpose(-2); assertEquals(a.hashCode(), b.hashCode()); }