Test http://www.w3.org/2001/DOM-Test-Suite/level2/html/HTMLDocument16

<test name='HTMLDocument16' schemaLocation='http://www.w3.org/2001/DOM-Test-Suite/Level-1 dom1.xsd'>
     <metadata>
          <title>HTMLDocument16</title>
          <creator>NIST</creator>
          <description> The getElementById method returns the Element whose id is given by elementId. If no such element exists, returns null. Retrieve the element whose id is "noid". The value returned should be null since there are not any elements with an id of "noid". </description>
          <contributor>Rick Rivello</contributor>
          <date qualifier='created'>2002-07-15</date>
          <subject resource='http://www.w3.org/TR/1998/REC-DOM-Level-1-19981001/level-one-html#ID-36113835'/>
          <subject resource='http://www.w3.org/TR/DOM-Level-2-HTML/html#ID-26809268'/>
          <subject resource='http://www.w3.org/TR/DOM-Level-2-Core/core#ID-getElBId'/>
</metadata>
     <var name='elementNode' type='Element'/>
     <var name='elementValue' type='DOMString'/>
     <var name='doc' type='Document'/>
     <load var='doc' href='document' willBeModified='false'/>
     <getElementById var='elementNode' obj='doc' elementId='"noid"' id='getElementsId'/>
     <assertNull actual='elementNode' id='elementId'/>
</test>

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