File: Element-siblingElement-null.html

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<!DOCTYPE HTML>
<meta charset=utf-8>
<title>Null test</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<h1>Test of previousElementSibling and nextElementSibling returning null</h1>
<div id="log"></div>
<p id="parentEl">The result of this test is <span id="first_element_child" style="font-weight:bold;">unknown.</span></p>
<script>
test(function() {
  var fec = document.getElementById("first_element_child");
  assert_equals(fec.previousElementSibling, null)
  assert_equals(fec.nextElementSibling, null)
})
</script>