@Test public void testCompareTo() { CharacterGene g1 = CharacterGene.of('1'); CharacterGene g2 = CharacterGene.of('2'); CharacterGene g3 = CharacterGene.of('3'); assertTrue(g1.compareTo(g2) < 0); assertTrue(g2.compareTo(g3) < 0); assertTrue(g3.compareTo(g2) > 0); assertEquals(0, g2.compareTo(g2)); }