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    <title>ARIA 1.0 Test Case 763</title>
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    <h1>ARIA 1.0 Test Case 763</h1>
    
    <div role="listbox">
      <div role="option" aria-setsize="3" aria-posinset="1" tabindex="-1">Option 1</div> 
      <div role="option" aria-setsize="3" aria-posinset="2" tabindex="-1" id="ID_TARGET">Option 2</div> 
      <div role="option" aria-setsize="3" aria-posinset="3" tabindex="-1">Option 3</div>
    </div>
    
    <h2>Description</h2>
      <p>A div element with the role='listbox' has three child div elements each with 
        role='option' and aria-setsize='3'.   The 1st child div element has aria-posinset='1', 
        the 2nd child div element has aria-posinset='2' and the 3rd child div element 
        has aria-posinset='3'.</p>


      <h2>Expected Results</h2>
      
      <h3>MSAA + UIA Express</h3>
      <ul>
      <li>role="tree": ROLE_SYSTEM_LIST</li>
      <li>role="treeitem": ROLE_SYSTEM_LISTITEM</li>
      <li>LegacyIAccessible.Description will be in the form X of Y, 
        where X is the value of aria-posinset and Y is the value of aria-setsize
      </li>
      </ul>
      
      <h3>MSAA + IAccessible2</h3>
      <ul>
        <li>role="tree": ROLE_SYSTEM_LIST</li>
        <li>role="treeitem": ROLE_SYSTEM_LISTITEM</li>
        <li>The structure should be reflected in the accessibility tree as directed by aria-posinset.</li>
        <li>function groupPosition() should be available and have the following results:
          <ul>
            <li>groupLevel: 1</li>
            <li>similarItemsInGroup: 3</li>
            <li>positionInGroup: aria-posinest value</li>
          </ul>
        </li>
      </ul>
      
      <h3>UIA</h3>
      <ul>
        <li>role="tree": List</li>
        <li>role="treeitem": ListItem</li>
        <li>LegacyIAccessible.Description will be in the form X of Y, 
          where X is the value of aria-posinset and Y is the value of aria-setsize</li>
      </ul>
      
      
      <h3>ATK/AT-SPI</h3>
      <ul>
        <li>role="tree": ROLE_LIST</li>
        <li>role="treeitem": ROLE_LISTITEM</li>
        <li>aria-setsize: not mapped to setsize: value</li>
        <li>aria-posinset: is mapped to  posinset: value</li>
      </ul>
      
      <h3>AXAPI</h3>
      <ul>
        <li>role="tree": AXList = 'list'</li>
        <li>role="treeitem": AXGroup = 'group'</li>
        <li>aria-setsize: is mapped to AXARIASetSize: value</li>
        <li>aria-posinset: is mapped to AXARIAPosInSet: value</li>
      </ul>
      
    
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     function setFocus() {
       var node = document.getElementById('ID_TARGET');  
       node.focus();
     }
     
     window.addEventListener('load', setFocus);
    </script>
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