@Test
public void testTaskDeletedBeforeEvaluating() {
final IScheduledTask task = makeTask(TASK_A_ID);
expect(rateLimiter.acquire()).andReturn(0D);
expect(taskScheduler.schedule(Tasks.id(task)))
.andAnswer(
new IAnswer<Boolean>() {
@Override
public Boolean answer() {
// Test a corner case where a task is deleted while it is being evaluated by the
// task
// scheduler. If not handled carefully, this could result in the scheduler trying
// again
// later to satisfy the deleted task.
taskGroups.tasksDeleted(new TasksDeleted(ImmutableSet.of(task)));
return false;
}
});
expect(backoffStrategy.calculateBackoffMs(FIRST_SCHEDULE_DELAY.as(Time.MILLISECONDS)))
.andReturn(0L);
control.replay();
taskGroups.taskChangedState(TaskStateChange.transition(makeTask(Tasks.id(task)), INIT));
clock.advance(FIRST_SCHEDULE_DELAY);
}
@Test
public void testResistStarvation() {
expect(rateLimiter.acquire()).andReturn(0D).times(2);
expect(taskScheduler.schedule("a0")).andReturn(true);
expect(taskScheduler.schedule("b0")).andReturn(true);
control.replay();
taskGroups.taskChangedState(TaskStateChange.transition(makeTask(JOB_A, "a0", 0), INIT));
taskGroups.taskChangedState(TaskStateChange.transition(makeTask(JOB_A, "a1", 1), INIT));
taskGroups.taskChangedState(TaskStateChange.transition(makeTask(JOB_A, "a2", 2), INIT));
taskGroups.taskChangedState(
TaskStateChange.transition(
makeTask(IJobKey.build(JOB_A.newBuilder().setName("jobB")), "b0", 0), INIT));
clock.advance(FIRST_SCHEDULE_DELAY);
}
@Test
public void testEvaluatedAfterFirstSchedulePenalty() {
expect(rateLimiter.acquire()).andReturn(0D);
expect(taskScheduler.schedule(TASK_A_ID)).andReturn(true);
control.replay();
taskGroups.taskChangedState(TaskStateChange.transition(makeTask(TASK_A_ID), INIT));
clock.advance(FIRST_SCHEDULE_DELAY);
}