     <span role="columnheader" data-testname="role is columnheader (in row, in rowgroup, in grid)" data-expectedrole="columnheader" class="ex">x</span>
        <span role="columnheader">x</span>
        <span role="columnheader">x</span>
      </div>
    </div>
    <div role="rowgroup">
      <div role="row">
        <span role="rowheader" data-testname="role is rowheader (in row, in rowgroup, in grid)" data-expectedrole="rowheader" class="ex">x</span>
        <span role="gridcell" data-testname="role is gr