Content - 225c9e61a38835c1d1b90ca11014068e62883a49 - 040f884/dom/collections/HTMLCollection-as-proto-length-get-throws.html

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Tip revision: 6f869cd68557949f12ca6b640ddbd8c505a4decb authored by L. David Baron on 09 April 2018, 04:44:44 UTC
Sync Mozilla tests as of https://hg.mozilla.org/mozilla-central/rev/b4bc6b2401738b78fd47127a4c716bb9178e1a09 .

Tip revision: 6f869cd

HTMLCollection-as-proto-length-get-throws.html

<!doctype html>
<meta charset=utf-8>
<title>Make sure browsers throw when getting .length on some random object whose proto is an HTMLCollection</title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script>
test(function() {
  var obj = Object.create(document.getElementsByTagName("script"));
  assert_throws(new TypeError(), function() {
    obj.length;
  });
}, "HTMLcollection as a prototype should not allow getting .length on the base object")
</script>

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