@Test public void format() { assertEquals("RGBC", format.format(new byte[]{ 0, 1, 2, 3 })); assertEquals("CMYW", format.format(new byte[]{ 3, 4, 5, 6 })); assertEquals("RGBC", format.format(new byte[]{ 0, 2, 0, 2, 0, 1, 2, 3 })); assertEquals("CMYW", format.format(new byte[]{ 0, 2, 0, 2, 3, 4, 5, 6 })); }