threadly schedule 4.4.0 regression unit test

gistfile1.txt

@Test
  public void scheduleLaterThenSoonerTest() {
    // This test is focused around the scheduling defect fixed in 4.4.1
    // The condition hit was where we would park for one scheduled task, then a future task 
    // would not get executed in time because the first parked thread was not woken up

    final PriorityScheduler scheduler = new PriorityScheduler(2);
    try {
      // schedule one task a ways out
      scheduler.schedule(DoNothingRunnable.instance(), 1000 * 60 * 10);
      // ensure first thread has blocked
      new TestCondition() {
        @Override
        public boolean get() {
          return scheduler.workerPool.idleWorker.get() != null;
        }
      }.blockTillTrue();
      
      // start second thread
      scheduler.prestartAllThreads();
      // ensure second thread has blocked
      new TestCondition() {
        @Override
        public boolean get() {
          return scheduler.workerPool.idleWorker.get().nextIdleWorker != null;
        }
      }.blockTillTrue();
      
      // schedule soon to run task
      TestRunnable tr = new TestRunnable();
      scheduler.schedule(tr, 10);
      
      tr.blockTillStarted(1000);
    } finally {
      scheduler.shutdownNow();
    }
  }