@Test
 public void shouldNotAddEqualThresholds() {
   assertEquals(0, notifier.getThresholdSize());
   SingleThreshold threshold1 = new SingleThreshold("load_one", SingleThreshold.MAX, 3);
   SingleThreshold threshold2 = new SingleThreshold("load_one", SingleThreshold.MAX, 3);
   notifier.addThreshold("default", threshold1);
   notifier.addThreshold("default", threshold2);
   assertEquals(1, notifier.getThresholdSize());
 }
  @Test
  public void thereAreSurpassedThreshold() throws GangliaException {
    SingleThreshold t = new SingleThreshold("load_one", SingleThreshold.MAX, 0);

    notifier.addThreshold("default", t);
    notifier.updateThresholdsInfo();

    assertTrue(notifier.thereAreSurpassedThresholds());
  }
  @Test
  public void shouldEvaluateMultipleThresholdsInSingleHost() throws GangliaException {

    SingleThreshold threshold1 = new SingleThreshold("load_one", SingleThreshold.MIN, 1.5);
    SingleThreshold threshold2 = new SingleThreshold("mem_total", SingleThreshold.MAX, 50000);

    notifier.addThreshold("default", threshold1);
    notifier.addThreshold("small", threshold2);

    notifier.updateThresholdsInfo();

    Map<String, List<AbstractThreshold>> list1 = notifier.getSurpassedThresholds();

    assertEquals("surpassed thresholds", 1, list1.size());

    List<AbstractThreshold> list = list1.get(extraLargeHost.getIp());

    assertEquals("hosts with surpassed thresholds", 1, list.size());
  }
  @Test
  public void shouldNotifySingleThresholdInMultipleHosts() throws GangliaException {
    SingleThreshold threshold = new SingleThreshold("load_one", SingleThreshold.MAX, 0.8);

    notifier.addThreshold("default", threshold);
    notifier.updateThresholdsInfo();

    Map<String, List<AbstractThreshold>> list1 = notifier.getSurpassedThresholds();
    System.out.println(list1);

    assertEquals(2, list1.size());

    List<AbstractThreshold> list;

    list = list1.get(extraLargeHost.getIp());
    assertTrue(list.contains(threshold));

    list = list1.get(mediumHost.getIp());
    assertTrue(list.contains(threshold));
  }
 @Test
 public void shouldAddOneDoubleThreshold() {
   DoubleThreshold threshold = new DoubleThreshold("load_five", DoubleThreshold.BETWEEN, 1, 1.1);
   notifier.addThreshold("default", threshold);
   assertEquals(1, notifier.getThresholdSize());
 }
 @Test
 public void shouldAddOneSingleThreshold() {
   SingleThreshold threshold = new SingleThreshold("load_one", SingleThreshold.MAX, 3);
   notifier.addThreshold("default", threshold);
   assertEquals(1, notifier.getThresholdSize());
 }