async-clipboard-cached-getType-permission-revocation.tentative.https.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /clipboard-apis/async-clipboard-cached-getType-permission-revocation.tentative.https.html - WPT Dashboard Interop Dashboard

<!doctype html>

<meta charset="utf-8">

<title>

  Cached ClipboardItem data survives clipboard-read permission revocation

</title>

<link rel="help" href="https://w3c.github.io/clipboard-apis/#dom-clipboarditem-gettype">

<body>Body needed for clipboard access</body>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="/resources/testdriver.js"></script>

<script src="/resources/testdriver-vendor.js"></script>

<script>

promise_test(async t => {

  const readPermission = {name: 'clipboard-read'};

  const writePermission = {name: 'clipboard-write'};

  await test_driver.set_permission(readPermission, 'granted');

  await test_driver.set_permission(writePermission, 'granted');

  t.add_cleanup(async () => {

    await test_driver.set_permission(readPermission, 'prompt');

    await test_driver.set_permission(writePermission, 'prompt');

});

  await navigator.clipboard.writeText('cached clipboard data');

  const [item] = await navigator.clipboard.read();

  // Materialize and cache the representation while access is authorized.

  const firstBlob = await item.getType('text/plain');

  assert_equals(await firstBlob.text(), 'cached clipboard data');

  // Authorization changes, but neither the clipboard nor the cached

  // representation changes.

  await test_driver.set_permission(readPermission, 'denied');

  const secondBlob = await item.getType('text/plain');

  assert_equals(await secondBlob.text(), 'cached clipboard data');

}, 'Revoking clipboard-read does not invalidate an already-resolved ' +

   'ClipboardItem representation');

</script>