Function fireMessageEvent

packages/scheduler/src/__tests__/Scheduler-test.js:115–138

()

      currentTime = 0;
    }
    function fireMessageEvent() {
      ensureLogIsEmpty();
      if (!hasPendingMessageEvent) {
        throw Error('No message event was scheduled');
      }
      hasPendingMessageEvent = false;
      const onMessage = port1.onmessage;
      log('Message Event');

      isFiringMessageEvent = true;
      try {
        onMessage();
      } finally {
        isFiringMessageEvent = false;
        if (hasPendingDiscreteEvent) {
          log('Discrete Event');
          hasPendingDiscreteEvent = false;
        }
        if (hasPendingContinuousEvent) {
          log('Continuous Event');
          hasPendingContinuousEvent = false;
        }
      }
    }
    function scheduleDiscreteEvent() {
      if (isFiringMessageEvent) {
        hasPendingDiscreteEvent = true;