<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/get-host-info.sub.js"></script>
<script src="resources/test-helpers.sub.js"></script>
<body>
<script>
const worker = 'resources/fetch-event-within-sw-worker.js';

function reset() {
  for (const iframe of [...document.querySelectorAll('.test-iframe')]) {
    iframe.remove();
  }
  return navigator.serviceWorker.getRegistrations().then(registrations => {
    return Promise.all(registrations.map(r => r.unregister()));
  }).then(() => caches.keys()).then(cacheKeys => {
    return Promise.all(cacheKeys.map(c => caches.delete(c)));
  });
}

add_completion_callback(reset);

function regReady(reg) {
  return new Promise((resolve, reject) => {
    if (reg.active) {
      resolve();
      return;
    }
    const nextWorker = reg.waiting || reg.installing;

    nextWorker.addEventListener('statechange', () => {
      if (nextWorker.state == 'redundant') {
        reject(Error(`Service worker failed to install`));
        return;
      }
      if (nextWorker.state == 'activated') {
        resolve();
      }
    });
  });
}

function registerSwAndOpenFrame() {
  return reset().then(() => navigator.serviceWorker.register(worker, { scope: 'resources/' }))
    .then(reg => regReady(reg))
    .then(() => with_iframe('resources/simple.html'));
}

promise_test(() => {
  return registerSwAndOpenFrame().then(iframe => {
    return Promise.all([
      iframe.contentWindow.fetch('dummy.txt').then(r => r.text()),
      iframe.contentWindow.caches.open('test')
        .then(cache =>
          cache.add('dummy.txt').then(() => cache.match('dummy.txt'))
        ).then(response => {
          if (!response) return 'cache match failed';
          return response.text();
        })
    ])
  }).then(([fetchText, cacheText]) => {
    assert_equals(fetchText, 'intercepted', 'fetch intercepted');
    assert_equals(cacheText, 'intercepted', 'cache.add intercepted');
  });
}, 'Service worker intercepts requests from window');

promise_test(() => {
  return registerSwAndOpenFrame().then(iframe => {
    return Promise.all([
      iframe.contentWindow.fetch('dummy.txt-inner-fetch').then(r => r.text()),
      iframe.contentWindow.fetch('dummy.txt-inner-cache').then(r => r.text())
    ])
  }).then(([fetchText, cacheText]) => {
    assert_equals(fetchText, 'Hello world\n', 'fetch within SW not intercepted');
    assert_equals(cacheText, 'Hello world\n', 'cache.add within SW not intercepted');
  });
}, `Service worker does not intercept fetch/cache requests within service worker`);
</script>
</body>