*
   * @throws RejectedExecutionException if the queue is shut down and the task is not cancelable.
   */
  fun schedule(
    task: Task,
    delayNanos: Long = 0L,
  ) {
    taskRunner.withLock {
      if (shutdown) {
        if (task.cancelable) {
          taskRunner.logger.taskLog(task, this) { "schedule canceled (queue is shutdown)" }
          return
        }

 * that is currently executing does not impact the ongoing run, but it does prevent a recurrence
 * from being scheduled.
 *
 * Tasks may opt-out of cancellation with `cancelable = false`. Such tasks will recur until they
 * decide not to by returning -1L.
 *
 * Task Queues
 * -----------
 *
 * Tasks are bound to the [TaskQueue] they are scheduled in. Each queue is sequential and the tasks

    # If we got here within the timeout the generator was cancellable.
    # cancel_scope.cancelled_caught is True when move_on_after fired.
    return cancel_scope.cancelled_caught or len(chunks) > 0


async def test_raw_stream_cancellation() -> None:
    """Raw streaming endpoint should be cancellable within a reasonable time."""
    cancelled = await _run_asgi_and_cancel(app, "/stream-raw", timeout=3.0)