test/password_strength_test.html

<!doctype html>
<html>
<head>
  <meta charset="utf-8">
  <title>PasswordStrength</title>

  <link rel="stylesheet" href="../node_modules/qunitjs/qunit/qunit.css">
  <script src="../node_modules/qunitjs/qunit/qunit.js"></script>
  <script src="../node_modules/jquery/dist/jquery.js"></script>
  <script src="../app/assets/javascripts/password_strength.js"></script>
  <script src="../app/assets/javascripts/jquery_strength.js"></script>
</head>
<body>

<div id="qunit"></div>
<div id="sample"></div>

<script src="password_strength_test.js"></script>
</body>
</html>