@Test public void submitCallableTest() { TestPriorityScheduler testScheduler = new TestPriorityScheduler(); PrioritySchedulerDefaultPriorityWrapper psw = new PrioritySchedulerDefaultPriorityWrapper(testScheduler, TaskPriority.Low); psw.submit(new TestCallable()); assertTrue(testScheduler.submitCallableCalled); // reset and try with priority testScheduler.submitCallableCalled = false; psw.submit(new TestCallable(), TaskPriority.High); assertTrue(testScheduler.submitCallableCalled); }