s</h1>
      <div>
        <p>Success: <span id="success">0</span></p>
        <p>Failure: <span id="failure">0</span></p>
        <p>Total: <span id="total">0</span></p>
      </div>
    </main>
    <script>
      test(typeof sb === 'object', 'sb is function');

      const data = sb.init();
      test(typeof sb.watch === 'function', 'sb.watch is function');
      test(typeof sb.unwatch === 'function', 'sb.unwatch is function');
      test(typeof sb.register === 'function', 'sb.register is function');
    