@Test
public void testFilterSpecialCases()
{

    IPFilter instance = new IPFilter("", "");
    assertTrue(instance.accept("1.2.3.4"));
    try
    {
        new IPFilter("1.2.3.4, 4.5.67.1", "8.9.7.3");
        assertFalse("black and white", true);
    } catch (Exception ex)
    {
    }
}