@Test
public void constraintTest() {
Debug.testStart("Constraint");
final int COUNT = 100;
final TestMonitorable mon = new TestMonitorable();
final Random rand = new Random();
final Predicate<TestMonitorable> pred1 = m -> m.get() < COUNT;
final Predicate<TestMonitorable> pred2 = m -> m.get() % 2 == 0;
final Monitor<TestMonitorable> monitor1 = new ConstraintMonitor<>(pred1);
mon.addChangeMonitor(monitor1);
final Monitor<TestMonitorable> monitor2 = Monitors.monitor(mon).constraint(pred2);
for (int i = 0; i < COUNT; i++) {
boolean failed = false;
try {
mon.increment();
} catch (final UnprotectedMonitorException cve) {
failed = true;
}
final boolean shouldFail = !pred1.test(mon) || !pred2.test(mon);
if (failed) {
if (!shouldFail) throw new Error("False negative at " + mon.get());
} else if (shouldFail) throw new Error("False positive at " + mon.get());
}
Debug.testEnd("Constraint");
}
@Test
public void manyMonitorsTest() {
Debug.testStart("Many Monitors");
final long time = System.currentTimeMillis();
final int COUNT = 10000;
final TestMonitorable mon = new TestMonitorable();
final Random rand = new Random();
final TestToggleMonitor[] monitors = new TestToggleMonitor[COUNT];
for (int i = 0; i < monitors.length; i++) {
monitors[i] = new TestToggleMonitor();
mon.addChangeMonitor(monitors[i]);
}
for (int i = 0; i < 100; i++) {
final int index = rand.nextInt(COUNT);
final TestToggleMonitor replacement = new TestToggleMonitor();
if (rand.nextFloat() > .5) {
mon.removeChangeMonitor(monitors[i]);
mon.addChangeMonitor(replacement);
} else {
mon.addChangeMonitor(replacement);
mon.removeChangeMonitor(monitors[i]);
}
monitors[i] = replacement;
}
mon.increment();
for (final TestToggleMonitor monitor : monitors)
if (!monitor.toggle) throw new Error("Monitor was not triggered");
Debug.printLn("Millis (Benchmark): " + (System.currentTimeMillis() - time));
Debug.testEnd("Many Monitors");
}