web-push - 如何测试 pushsubscriptionchange 事件处理代码？

Question

pushsubscriptionchange 当推送通知服务器希望客户端重新订阅时，浏览器会触发事件。如何手动触发此事件进行测试？

Answer 1

不幸的是，无法对此功能进行任何端到端测试。您能做的最好的事情是通过 Service Worker 的 JS 触发事件:

function triggerSubscriptionChange() {
  registration.pushManager.getSubscription().then(subscription => {
    if (subscription) {
      console.log("subscribed, subscription", subscription);
      return subscription.unsubscribe();
    }
  }).then(() => {
    console.log("unsubscribed");
    return registration.pushManager.subscribe({
      userVisibleOnly: true
    });
  }).then(subscription => {
    console.log("subscribed, subscription", subscription);
    self.dispatchEvent(new ExtendableEvent("pushsubscriptionchange"));
  });
}