@Test
public void testCIDRs() {

  //create MachineList with a list of of ip ranges specified in CIDR format
  MachineList ml = new MachineList(CIDR_LIST);
  //test for inclusion/exclusion 
  assertFalse(ml.includes("10.221.255.255"));
  assertTrue(ml.includes("10.222.0.0")); 
  assertTrue(ml.includes("10.222.0.1"));
  assertTrue(ml.includes("10.222.0.255"));
  assertTrue(ml.includes("10.222.255.0"));
  assertTrue(ml.includes("10.222.255.254"));
  assertTrue(ml.includes("10.222.255.255"));
  assertFalse(ml.includes("10.223.0.0"));
  assertTrue(ml.includes("10.241.23.0"));
  assertTrue(ml.includes("10.241.23.1"));
  assertTrue(ml.includes("10.241.23.254"));
  assertTrue(ml.includes("10.241.23.255"));
  //test for exclusion with an unknown IP
  assertFalse(ml.includes("10.119.103.111"));
}