Test http://www.w3.org/2001/DOM-Test-Suite/level3/core/nodeinsertbefore09

<test name='nodeinsertbefore09' schemaLocation='http://www.w3.org/2001/DOM-Test-Suite/Level-3 dom3.xsd'>
     <metadata>
          <title>nodeinsertbefore09</title>
          <creator>IBM</creator>
          <description> The method insertBefore inserts the node newChild before the existing child node refChild. If refChild is null, insert newChild at the end of the list of children. If newChild is a DocumentFragment object, all of its children are inserted, in the same order, before refChild. Using insertBefore on this Document node attempt to insert a new DocumentFragment node before a Comment node and verify the contents of the Comment node that is a child of the DocumentFragment. </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-952280727'/>
</metadata>
     <implementationAttribute name='namespaceAware' value='true'/>
     <var name='doc' type='Document'/>
     <var name='docFrag' type='DocumentFragment'/>
     <var name='newComment' type='Comment'/>
     <var name='insertComment' type='Comment'/>
     <var name='comment' type='Comment'/>
     <var name='inserted' type='DocumentFragment'/>
     <var name='data' type='DOMString'/>
     <var name='appendedChild' type='Node'/>
     <load var='doc' href='hc_staff' willBeModified='false'/>
     <createComment var='newComment' obj='doc' data='"Comment"'/>
     <appendChild obj='doc' var='appendedChild' newChild='newComment'/>
     <createDocumentFragment var='docFrag' obj='doc'/>
     <createComment var='insertComment' obj='doc' data='"insertComment"'/>
     <appendChild obj='docFrag' var='appendedChild' newChild='insertComment'/>
     <insertBefore var='inserted' obj='doc' newChild='docFrag' refChild='newComment'/>
     <previousSibling var='comment' obj='newComment' interface='Node'/>
     <data var='data' obj='comment' interface='CharacterData'/>
     <assertEquals actual='data' expected='"insertComment"' id='nodeinsertbefore09' ignoreCase='false'/>
</test>

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