idbcursor-request-source.html | Explore in Territory

<!doctype html>
<meta charset=utf-8>
<title>IndexedDB: The source of requests made against cursors</title>
<meta name="help" href="https://w3c.github.io/IndexedDB/#dom-idbrequest-source">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/support.js"></script>
<script>

[
  cursor => cursor.update(0),
  cursor => cursor.delete()
].forEach(func => indexeddb_test(
  (t, db) => {
    db.createObjectStore('store', {autoIncrement: true});
  },
  (t, db) => {
    const tx = db.transaction('store', 'readwrite', {durability: 'relaxed'});
    const store = tx.objectStore('store');
    store.put('value');
    store.openCursor().onsuccess = t.step_func(e => {
      const cursor = e.target.result;
      assert_equals(func(cursor).source, cursor,
                    `${func}.source should be the cursor itself`);
      t.done();
    });
  },
  `The source of the request from ${func} is the cursor itself`
));

</script>

chromium/third_party/blink/web_tests/external/wpt/IndexedDB/idbcursor-request-source.html