ColorConverter extends AbstractConverter<Color> { @Override protected String convertToString(Color value) { Color colorValue = value; return MessageFormat.format("{0}, {1}, {2}", colorValue.getRed(), colorValue.getGreen(), colorValue.getBlue()); }  Color parse(String value);  }
@Test void convertToString() { assertEquals("255, 255, 255", this.converterManager.convert(String.class, Color.WHITE)); }