Test http://www.w3.org/2001/DOM-Test-Suite/level3/core/nodesetuserdata03

<test name='nodesetuserdata03' schemaLocation='http://www.w3.org/2001/DOM-Test-Suite/Level-3 dom3.xsd'>
     <metadata>
          <title>nodesetuserdata03</title>
          <creator>IBM</creator>
          <description> Invoke setUserData on this Document to set this Documents UserData to a new Element node. Do the same with a new Text node and using isNodeEqual verify the returned Element UserData object. </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#Node3-setUserData'/>
</metadata>
     <var name='doc' type='Document'/>
     <var name='userData' type='DOMUserData'/>
     <var name='retUserData' type='DOMUserData'/>
     <var name='returnedUserData' type='DOMUserData'/>
     <var name='success' type='boolean'/>
     <var name='elem' type='Element'/>
     <var name='txt' type='Text'/>
     <var name='nullHandler' type='UserDataHandler' isNull='true'/>
     <load var='doc' href='hc_staff' willBeModified='true'/>
     <createElementNS var='elem' obj='doc' namespaceURI='"http://www.w3.org/1999/xhtml"' qualifiedName='"xhtml:p"'/>
     <createTextNode var='txt' obj='doc' data='"TEXT"'/>
     <setUserData obj='doc' var='returnedUserData' key='"Key1"' data='elem' handler='nullHandler'/>
     <setUserData var='retUserData' obj='doc' key='"Key1"' data='txt' handler='nullHandler'/>
     <isEqualNode var='success' obj='retUserData' arg='elem'/>
     <assertTrue actual='success' id='nodesetuserdata03'/>
</test>

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