a></li>
            <li><a href="#test-5">Domain</a></li>
            <li><a href="#test-6">Range</a></li>
        </ol>

        <!-- Test 1 -->
        <div id="test-1" class="test">
            <h2>1. Axes</h2>
            <p>
                Correctly add and remove axes when options are set.
            </p>
            <div class="epoch"></div>
            <div class="controls">
                <button data-index="0">All</button>
                <button data-index="1">[left, right]</button>
          