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importScripts(‘/<Path to library file>.js’);

self.addEventListener('push', (event) => {
  self._handlePushEvent(event);
});

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self._handlePushEvent = (event) => {
  const data = event.data.json();
  const promiseChain = self.registration.showNotification(data.title, {
    body: data.body,
  });
  event.waitUntil(promiseChain);
};

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self.addEventListener('push', (event) => {
  const data = event.data.json();
  const promiseChain = self.registration.showNotification(data.title, {
    body: data.body,
  });
  event.waitUntil(promiseChain);
});

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const event = new NotificationEvent('notificationclose', {
  notification: notifications[0],
});

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const event = new NotificationEvent('notificationclick', {
  notification: notifications[0],
});

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return new Promise((resolve, reject) => {
  const event = new FetchEvent('fetch', {
    request: new Request('/index.html'),
  });
  event.respondWith = (promiseChain) => {
    if (promiseChain) {
      // Check if promise was returned - otherise
      // it could be a response
      if (promiseChain instanceof Promise) {
        promiseChain.then(resolve, reject);

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const event = new FetchEvent('fetch', {
  request: new Request('/index.html'),
});

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// This could be in our test directly or imported using importScripts();
self.addEventListener('push', (event) => {
  const data = event.data.json();
  const promiseChain = self.registration.showNotification(data.title, data);
  event.waitUntil(promiseChain);
});


describe('First SW Test Suite', function() {
  it('should be able to test a push event', function() {

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it('should be able to test a push event', function() {
  const pushData = {
    title: 'Example Title.',
    body: 'Example Body.',
  };

  return new Promise((resolve, reject) => {
    const fakePushEvent = new PushEvent('push', {
      data: JSON.stringify(pushData),
    });

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self.dispatchEvent(fakePushEvent);