File: test_structuredclone_error.html

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<!DOCTYPE HTML>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css">
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=XXX">Mozilla Bug XXX</a>

<script>
  const tests = [
    {obj: (() => {}), msg: "Function object could not be cloned."},
    {obj: document.body, msg: "HTMLBodyElement object could not be cloned."},
    {obj: {foo: new Audio()}, msg: "HTMLAudioElement object could not be cloned."},
  ]

  for (const test of tests) {
    let message = undefined;
    try {
      structuredClone(test.obj);
    } catch (e) {
      message = e.message;
    }

    is(message, test.msg, 'Threw correct DataCloneError');
  }
</script>