Test http://www.w3.org/2001/DOM-Test-Suite/level3/core/noderemovechild03

<test name='noderemovechild03' schemaLocation='http://www.w3.org/2001/DOM-Test-Suite/Level-3 dom3.xsd'>
     <metadata>
          <title>noderemovechild03</title>
          <creator>IBM</creator>
          <description> Using removeChild on this DocumentElement node attempt to remove this Document node and verify if the DocumentElement is null. Now try the reverse and a NOT_FOUND_ERR should be thrown. </description>
          <contributor>Neil Delima</contributor>
          <date qualifier='created'>2002-06-10</date>
          <subject resource='http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407/core#ID-1734834066'/>
</metadata>
     <var name='doc' type='Document'/>
     <var name='docElem' type='Element'/>
     <var name='removedChild' type='Element'/>
     <var name='removed' type='Node'/>
     <load var='doc' href='hc_staff' willBeModified='true'/>
     <documentElement var='docElem' obj='doc'/>
     <removeChild obj='doc' var='removed' oldChild='docElem'/>
     <documentElement var='removedChild' obj='doc'/>
     <assertNull actual='removedChild' id='noderemovechild03'/>
     <assertDOMException id='throw_NOT_FOUND_ERR'>
          <NOT_FOUND_ERR>
               <removeChild obj='docElem' var='removed' oldChild='doc'/>
          </NOT_FOUND_ERR>
     </assertDOMException>
</test>

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