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

<test name='elementsetattributensurinull' schemaLocation='http://www.w3.org/2001/DOM-Test-Suite/Level-2 dom2.xsd'>
     <metadata>
          <title>elementSetAttributeNSURINull</title>
          <creator>NIST</creator>
          <description> The "setAttributeNS(namespaceURI,qualifiedName,value)" method raises a NAMESPACE_ERR DOMException if the specified qualifiedName has a prefix and the namespaceURI is null. Attempt to add a new attribute on the first employee node. An exception should be raised since the "qualifiedName" has a prefix and the namespaceURI is null. </description>
          <contributor>Mary Brady</contributor>
          <date qualifier='created'>2001-08-17</date>
          <subject resource='http://www.w3.org/TR/DOM-Level-2-Core/core#ID-ElSetAttrNS'/>
          <subject resource='http://www.w3.org/TR/DOM-Level-2-Core/core#xpointer(id('ID-ElSetAttrNS')/raises/exception[@name='DOMException']/descr/p[substring-before(.,':')='NAMESPACE_ERR'])'/>
</metadata>
     <var name='namespaceURI' type='DOMString' isNull='true'/>
     <var name='qualifiedName' type='DOMString' value='"emp:qualifiedName"'/>
     <var name='doc' type='Document'/>
     <var name='elementList' type='NodeList'/>
     <var name='testAddr' type='Node'/>
     <load var='doc' href='staff' willBeModified='true'/>
     <getElementsByTagName interface='Document' obj='doc' var='elementList' tagname='"employee"'/>
     <item interface='NodeList' obj='elementList' var='testAddr' index='0'/>
     <assertDOMException id='throw_NAMESPACE_ERR'>
          <NAMESPACE_ERR>
               <setAttributeNS obj='testAddr' namespaceURI='namespaceURI' qualifiedName='qualifiedName' value='"newValue"'/>
          </NAMESPACE_ERR>
     </assertDOMException>
</test>

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