@Test
public void testIsIp6InNetwork() {

    assertFalse(NetUtils.isIp6InNetwork("1234:5678:abcd::1", "1234:5678::/64"));
    assertTrue(NetUtils.isIp6InNetwork("1234:5678::1", "1234:5678::/64"));
    assertTrue(NetUtils.isIp6InNetwork("1234:5678::ffff:ffff:ffff:ffff", "1234:5678::/64"));
    assertTrue(NetUtils.isIp6InNetwork("1234:5678::", "1234:5678::/64"));
}