Element-previousElementSibling.html

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This WPT test may be referenced by the following Test IDs:
- /dom/nodes/Element-previousElementSibling.html - WPT Dashboard Interop Dashboard

<!DOCTYPE HTML>

<meta charset=utf-8>

<title>previousElementSibling</title>

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

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

<h1>Test of previousElementSibling</h1>

<div id="log"></div>

<p id="parentEl">The result of <span id="first_element_child">this test</span> is

<span id="middle_element_child" style="font-weight:bold;">unknown.</span>

<span id="last_element_child" style="display:none;">fnord</span> </p>

<script>

test(function() {

  var parentEl = document.getElementById("parentEl");

  var lec = document.getElementById("last_element_child");

  var pes = lec.previousElementSibling;

  assert_true(!!pes)

  assert_equals(pes.nodeType, 1)

  assert_equals(pes.getAttribute("id"), "middle_element_child")

})

</script>