@Test
public void testGetB() throws Exception {

    Assert.assertEquals(1, ARGB.getB(-1), 0.1);
    Assert.assertEquals(0, ARGB.getB(0), 0.1);
    Assert.assertEquals(1, ARGB.getB(0x000000FF), 0.1);
    Assert.assertEquals(0, ARGB.getB(0xFFFFFF00), 0.1);
}