chromium/third_party/blink/web_tests/fast/spatial-navigation/snav-table-traversal.html

<!DOCTYPE html>
<table style="text-align: left; width: 100%; margin-left: auto; margin-right: auto;" border="1" cellpadding="2" cellspacing="1">
  <tbody>
    <tr>
      <td style="vertical-align: top; text-align: center;"><a id="start" href="a">a</a></td>
      <td style="vertical-align: top; text-align: center;"><a id="2" href="a">a</a></td>
      <td style="vertical-align: top; text-align: center;"><a id="3" href="a">a</a></td>
    </tr>
    <tr>
      <td style="vertical-align: top; text-align: center;"><a id="4" href="a">a</a></td>
      <td style="vertical-align: top; text-align: center;"><a id="5" href="a">a</a></td>
      <td style="vertical-align: top; text-align: center;"><a id="6" href="a">a</a></td>
    </tr>
    <tr>
      <td style="vertical-align: top; text-align: center;"><a id="7" href="a">a</a></td>
      <td style="vertical-align: top; text-align: center;"><a id="8" href="a">a</a></td>
      <td style="vertical-align: top; text-align: center;"><a id="9" href="a">a</a></td>
    </tr>
  </tbody>
</table>
<div style='margin-top:100px'>
  <a id="end" href="a">End of table traversal test</a>
</div>
<p>
  This test ensures the basic table traversal correctness of Spatial Navigation (SNav) algorithm:<br>
  focusable elements in a table element should be accessible.<br>
  * Navigation steps:<br>
  1) Loads this page, focus goes to "start" automatically.<br>
  2) Focus moves along through the sparsely positioned elements in the table, eventually going to an outer southward link,<br>
     but going back inside the table later on.<br>
</p>

<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="resources/snav-testharness.js"></script>
<script>
  var resultMap = [
    ["Down", "4"],
    ["Down", "7"],
    ["Down", "end"],
    ["Up", "7"],
    ["Right", "8"],
    ["Right", "9"],
    ["Up", "6"],
    ["Up", "3"],
    ["Left", "2"],
    ["Left", "start"]
  ];

  // Start at a known place.
  document.getElementById("start").focus();
  snav.assertFocusMoves(resultMap);
</script>