@Test
public void testThresholdCrossedAscending() throws Exception {
BoundedThresholdManager thresholdManager = new BoundedThresholdManager("foo");
ThresholdValues thresholdValues = new ThresholdValues(0, 5);
thresholdManager.setThresholdValues(thresholdValues);
MyThresholdListener listener = new MyThresholdListener();
thresholdManager.addThresholdListener(listener);
for (Calculable calculable : makeCalculables(20)) {
thresholdManager.checkThreshold(calculable);
}
/* Notifications start at 6 and last until 19 (inclusive) */
Assert.assertEquals(14, listener.breached.size());
}
@Test
public void testThresholdCrossedDescending() throws Exception {
BoundedThresholdManager thresholdManager = new BoundedThresholdManager("foo");
ThresholdValues thresholdValues = new ThresholdValues(30, 50);
thresholdManager.setThresholdValues(thresholdValues);
MyThresholdListener listener = new MyThresholdListener();
thresholdManager.addThresholdListener(listener);
List<Calculable> calculables = makeCalculables(50);
Collections.reverse(calculables);
for (Calculable calculable : calculables) {
thresholdManager.checkThreshold(calculable);
}
/* Notifications start at 29 and last until 0 (inclusive) */
Assert.assertEquals(30, listener.breached.size());
}
@Test
public void testThresholdCrossedAscendingWithStep() throws Exception {
BoundedThresholdManager thresholdManager = new BoundedThresholdManager("foo");
ThresholdValues thresholdValues = new ThresholdValues(0, 5, 2);
thresholdManager.setThresholdValues(thresholdValues);
MyThresholdListener listener = new MyThresholdListener();
thresholdManager.addThresholdListener(listener);
/*
* With a step of 2, the high threshold notifications will begin at 6. So:
* 1st notify at 6, next at 8, 10, 12, 14, 16, and 18
*/
for (Calculable calculable : makeCalculables(20)) {
thresholdManager.checkThreshold(calculable);
}
for (Map.Entry<Integer, Calculable> entry : listener.breached.entrySet()) {
System.out.println(entry.getValue().getValue());
}
Assert.assertEquals(7, listener.breached.size());
}
@Test
public void testThresholdCrossedMixedBagWithStep() throws Exception {
BoundedThresholdManager thresholdManager = new BoundedThresholdManager("foo");
ThresholdValues thresholdValues = new ThresholdValues(30, 50, 2.2);
thresholdManager.setThresholdValues(thresholdValues);
MyThresholdListener listener = new MyThresholdListener();
thresholdManager.addThresholdListener(listener);
List<Calculable> calculables = new LinkedList<Calculable>();
calculables.add(new Calculable("foo", 30.1));
calculables.add(new Calculable("foo", 32.1));
calculables.add(new Calculable("foo", 19.6)); // breached
calculables.add(new Calculable("foo", 1.3)); // breached
calculables.add(new Calculable("foo", 18.3)); // breached
calculables.add(new Calculable("foo", 28.6)); // breached
calculables.add(new Calculable("foo", 58.7)); // cleared && breached
calculables.add(new Calculable("foo", 20.7)); // cleared && breached
/*
* With a step of 2, the low threshold notifications will begin at 29. So:
* 1st notify at 29, next at 27, 25, 23, 21, 19, 17, 15, 13, 11, 9, 7, 5, 3, 1
*/
for (Calculable calculable : calculables) {
thresholdManager.checkThreshold(calculable);
}
Map<Integer, String> notifications = new TreeMap<Integer, String>();
for (Map.Entry<Integer, Calculable> entry : listener.breached.entrySet()) {
notifications.put(entry.getKey(), "breached: " + entry.getValue().getValue());
}
for (Map.Entry<Integer, Calculable> entry : listener.cleared.entrySet()) {
notifications.put(entry.getKey(), "cleared: " + entry.getValue().getValue());
}
for (Map.Entry<Integer, String> entry : notifications.entrySet()) {
System.out.println(entry.getKey() + " " + entry.getValue());
}
System.out.println();
Assert.assertEquals(6, listener.breached.size());
Assert.assertEquals(2, listener.cleared.size());
}
@Test
public void testThresholdCrossedDescendingWithStep() throws Exception {
BoundedThresholdManager thresholdManager = new BoundedThresholdManager("foo");
ThresholdValues thresholdValues = new ThresholdValues(30, 50, 2);
thresholdManager.setThresholdValues(thresholdValues);
MyThresholdListener listener = new MyThresholdListener();
thresholdManager.addThresholdListener(listener);
/*
* With a step of 2, the low threshold notifications will begin at 29. So:
* 1st notify at 29, next at 27, 25, 23, 21, 19, 17, 15, 13, 11, 9, 7, 5, 3, 1
*/
List<Calculable> calculables = makeCalculables(50);
Collections.reverse(calculables);
for (Calculable calculable : calculables) {
thresholdManager.checkThreshold(calculable);
}
for (Map.Entry<Integer, Calculable> entry : listener.breached.entrySet()) {
System.out.println(entry.getValue().getValue());
}
Assert.assertEquals(15, listener.breached.size());
}