<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="../../resources/js-test-pre.js"></script>
</head>
<body>
<script>

description("This test checks the implementation of the element traversal APIs on CharacterData as part of the NonDocumentTypeChildNode interface.");

var children = document.createElement('div');
var firstTextNode = document.createTextNode('first text node');
children.appendChild(firstTextNode);
var element = document.createElement('p');
children.appendChild(element);
children.appendChild(document.createComment("a comment"));
var lastTextNode = document.createTextNode('last text node');
children.appendChild(lastTextNode);
children.appendChild(document.createComment("last comment"));

shouldBe("firstTextNode.previousElementSibling", "null");
shouldBe("firstTextNode.nextElementSibling", "element");
shouldBe("firstTextNode.nextElementSibling.nextElementSibling", "null");
shouldBe("lastTextNode.previousElementSibling", "element");
shouldBe("lastTextNode.previousElementSibling.previousElementSibling", "null");
shouldBe("lastTextNode.nextElementSibling", "null");

</script>
<script src="../../resources/js-test-post.js"></script>
</body>
</html>