chromium/third_party/blink/web_tests/fast/dnd/link-dragging-draggable-link.html

<!doctype html>
<link rel="stylesheet" href="resources/link-dragging-common.css" />
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="resources/link-dragging-common.js"></script>

<p>
  Please attempt to drag the "Drag Me" text into the "Drop Here" box.
</p>

<article>
  <a class="dragged box" draggable="true" href="https://www.chromium.org">
    Drag Me
  </a>
  <div class="dropzone box">
    Drop Here
  </div>
</article>

<script>

promise_test((t) => {
  return runLinkDraggingTest(t, {
    dragStartUriList: 'https://www.chromium.org/',
    dragStartTypes: ['text/html', 'text/plain', 'text/uri-list'],
  });
}, 'Dragging a link with draggable="true"');

</script>