test.html

<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Binary tree</title>
	<link href="lib/mocha.css" rel="stylesheet" />
</head>
<body>
	<div id="mocha"></div>

	<script src="lib/jquery.min.js"></script>
	<script src="lib/expect.js"></script>
	<script src="lib/mocha.js"></script>
	<script src="lib/chai.js"></script>
	<script src="lib/sinon.min.js"></script>
	<script src="lib/sinon-chai.js"></script>

	<script src="./node.js"></script>
	<script src="./binary-tree.js"></script>

	<script>
	chai.should();
	window.expect = chai.expect;
	</script>

	<script>mocha.setup('bdd')</script>
	<script src="./test.binary-tree.js"></script>
	<script>
		mocha.checkLeaks();
		mocha.globals(['jQuery']);
		mocha.run();
	</script>
</body>
</html>