Test http://www.w3.org/2001/DOM-Test-Suite/level2/core/documentgetelementbyid01

<test name='documentgetelementbyid01' schemaLocation='http://www.w3.org/2001/DOM-Test-Suite/Level-2 dom2.xsd'>
     <metadata>
          <title>documentgetelementbyid01</title>
          <creator>IBM</creator>
          <description> The method getElementById returns the element whose ID is given by elementId. If not such element exists, returns null. Invoke the getElementById method on this Document object with an invalid elementId. This should return a null element. </description>
          <contributor>Neil Delima</contributor>
          <date qualifier='created'>2002-04-30</date>
          <subject resource='http://www.w3.org/TR/DOM-Level-2-Core/core'/>
          <subject resource='http://www.w3.org/TR/DOM-Level-2-Core/core#ID-getElBId'/>
</metadata>
     <var name='doc' type='Document'/>
     <var name='element' type='Element'/>
     <var name='elementId' type='DOMString' value='"---"'/>
     <load var='doc' href='staffNS' willBeModified='false'/>
     <getElementById var='element' obj='doc' elementId='elementId'/>
     <assertNull actual='element' id='documentgetelementbyid01'/>
</test>

Copyright (c) 2001-2004 World Wide Web Consortium, (Massachusetts Institute of Technology, Institut National de Recherche en Informatique et en Automatique, Keio University). All Rights Reserved. This program is distributed under the W3C's Software Intellectual Property License. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

See W3C License http://www.w3.org/Consortium/Legal/ for more details.