LayoutTests/accessibility/mac/aria-spinbutton.html

<html>
<body>
<script>
    if (window.testRunner)
        testRunner.dumpAsText();

    function validateRole() {
        if (!window.accessibilityController)
            return;
        
        var aria = document.getElementById("spinbutton");
        aria.focus();
        var ariaRole = accessibilityController.focusedElement.role;
       
        var result = document.getElementById("result");
        if (ariaRole == "AXRole: AXIncrementor")
            result.innerText = "This test PASSES in DumpRenderTree. The role is " + ariaRole;
        else
            result.innerText = "This test FAILS in DumpRenderTree. The ARIA role is " + ariaRole + ", but should be AXIncrementor";
    }
</script>

<div>
    <p>In accessibility, the following should be an incrementor:</p>
    <p><span tabindex="0" role="spinbutton" id="spinbutton" aria-valuenow=5 aria-valuemin=0 aria-valuemax=10>X</span></p>
    <span id="result"></span>
    <script>
        validateRole();
    </script>
  </div>
  
 </body>
</html>