File: estimate-usage-details-application-cache.https.tentative.html

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<!doctype html>
<html>
<title>Quota Estimate: usage details reflect application cache changes.</title>
<meta charset='utf-8'>
<link rel='author' href='jarrydg@chromium.org' title='Jarryd Goodman'>
<script src='/resources/testharness.js'></script>
<script src='/resources/testharnessreport.js'></script>
<script src='../cookie-store/resources/helpers.js'></script>
<script>
'use strict';

promise_test(async t => {
  let estimate = await navigator.storage.estimate();

  const usageBeforeCreate = estimate.usageDetails.applicationCache || 0;

  const iframe = await
      createIframe('./resources/iframe_with_appcache_manifest.html', t);
  await waitForMessage();

  estimate = await navigator.storage.estimate();
  assert_true('applicationCache' in estimate.usageDetails);
  const usageAfterCreate = estimate.usageDetails.applicationCache;

  assert_greater_than(
      usageAfterCreate, usageBeforeCreate);
}, 'estimate() shows usage increase after app is cached');
</script>
</html>