Test http://www.w3.org/2001/DOM-Test-Suite/level3/core/noderemovechild31

<test name='noderemovechild31' schemaLocation='http://www.w3.org/2001/DOM-Test-Suite/Level-3 dom3.xsd'>
     <metadata>
          <title>noderemovechild31</title>
          <creator>IBM</creator>
          <description> Using removeChild on a default Attribute node attempt to remove its EntityReference child node and and verify the name of the returned node that was removed. Now attempt the reverse and verify if a NO_MODIFICATION_ALLOWED_ERR or NOT_FOUND_ERR is thrown. Then remove an child of the entity reference and expect a NO_MODIFICATION_ALLOWED_ERR. </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>
     <implementationAttribute name='expandEntityReferences' value='false'/>
     <var name='doc' type='Document'/>
     <var name='parentList' type='NodeList'/>
     <var name='attrsMap' type='NamedNodeMap'/>
     <var name='parent' type='Attr'/>
     <var name='child' type='EntityReference'/>
     <var name='entRef' type='EntityReference'/>
     <var name='elem' type='Element'/>
     <var name='removed' type='EntityReference'/>
     <var name='removedNode' type='Node'/>
     <var name='removedName' type='DOMString'/>
     <var name='appendedChild' type='Node'/>
     <var name='entRefChild' type='Node'/>
     <load var='doc' href='hc_staff' willBeModified='true'/>
     <getElementsByTagName var='parentList' obj='doc' tagname='"acronym"' interface='Document'/>
     <item var='elem' obj='parentList' index='3' interface='NodeList'/>
     <attributes var='attrsMap' obj='elem'/>
     <getNamedItem var='parent' obj='attrsMap' name='"class"'/>
     <createEntityReference var='entRef' obj='doc' name='"delta"'/>
     <appendChild obj='parent' var='appendedChild' newChild='entRef'/>
     <lastChild var='child' obj='parent' interface='Node'/>
     <removeChild var='removed' obj='parent' oldChild='child'/>
     <nodeName obj='removed' var='removedName'/>
     <assertEquals actual='removedName' expected='"delta"' id='noderemovechild31' ignoreCase='false'/>
     <!-- Remove a non-child from an entity reference Should throw either a NO_MODIFICATION_ALLOWED_ERR or a NOT_FOUND_ERR -->
     <try>
          <removeChild obj='child' var='removedNode' oldChild='parent'/>
          <fail id='throw_DOMException'/>
          <catch>
               <DOMException code='NO_MODIFICATION_ALLOWED_ERR'/>
               <DOMException code='NOT_FOUND_ERR'/>
          </catch>
     </try>
     <!-- Remove a child of the entity reference Expect a NO_MODIFICATION_ALLOWED_ERR exception -->
     <firstChild var='entRefChild' obj='child' interface='Node'/>
     <if>
          <!-- entity may not be resolved if validating is false -->
          <notNull obj='entRefChild'/>
          <assertDOMException id='throw_NO_MODIFICATION_ALLOWED_ERR'>
               <NO_MODIFICATION_ALLOWED_ERR>
                    <removeChild obj='child' var='removedNode' oldChild='entRefChild'/>
               </NO_MODIFICATION_ALLOWED_ERR>
          </assertDOMException>
     </if>
</test>

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