public void testConversion() {
CharacterConverter characterConverter = new CharacterConverter();
assertNull(characterConverter.convert(null));
assertEquals(Character.valueOf((char) 1), characterConverter.convert(Character.valueOf((char) 1)));
assertEquals(Character.valueOf((char) 1), characterConverter.convert(Integer.valueOf(1)));
assertEquals(Character.valueOf((char) 1), characterConverter.convert(Short.valueOf((short) 1)));
assertEquals(Character.valueOf((char) 1), characterConverter.convert(Double.valueOf(1.0D)));
assertEquals(new Character('1'), characterConverter.convert("1"));