Test http://www.w3.org/2001/DOM-Test-Suite/level3/ls/DOMWriterFilterTest1

<test name='DOMWriterFilterTest1' schemaLocation='http://www.w3.org/2001/DOM-Test-Suite/Level-3 dom3.xsd'>
     <metadata>
          <title>DOMWriterFilterTest1</title>
          <creator>Jeroen van Rotterdam</creator>
          <description>Uses a serializer filter to eliminate attributes, parses the output and checks if the attribute is not there.</description>
          <contributor>X-Hive Corporation</contributor>
          <date qualifier='created'>2002-03-23</date>
          <subject resource='http://www.w3.org/TR/2003/CR-DOM-Level-3-LS-20031107/load-save#LS-Interfaces-LSSerializerFilter'/>
          <subject resource='http://www.w3.org/TR/2003/CR-DOM-Level-3-LS-20031107/load-save#LS-LSSerializer-LSSerializerFilter'/>
          <subject resource='http://www.w3.org/TR/2003/CR-DOM-Level-3-LS-20031107/load-save#LS-LSSerializerFilter-acceptNode'/>
          <subject resource='http://www.w3.org/TR/2003/CR-DOM-Level-3-LS-20031107/load-save#LS-LSSerializerFilter-whatToShow'/>
</metadata>
     <var name='myfilter' type='LSSerializerFilter'>
          <acceptNode>
               <return value='2'/>
          </acceptNode>
          <whatToShow>
               <get>
                    <return value='2'/>
               </get>
          </whatToShow>
     </var>
     <var name='configuration' type='DOMConfiguration'/>
     <var name='stringDoc' type='DOMString' value='"<elt1 attr1='attr1'>first elt1</elt1>"'/>
     <var name='writeResult' type='DOMString'/>
     <var name='length' type='int'/>
     <var name='elementList' type='NodeList'/>
     <var name='elt1' type='Element'/>
     <var name='attrNode' type='Attr'/>
     <var name='implementation' type='DOMImplementation'/>
     <var name='lsImplementation' type='DOMImplementationLS'/>
     <var name='inputSource' type='LSInput'/>
     <var name='document' type='Document'/>
     <var name='writer' type='LSSerializer'/>
     <var name='builder' type='LSParser'/>
     <!-- constants -->
     <var name='MODE_SYNCHRONOUS' type='short' value='1'/>
     <var name='MODE_ASYNCHRONOUS' type='short' value='2'/>
     <var name='DTD_SCHEMATYPE' type='DOMString' value='"http://www.w3.org/TR/REC-xml"'/>
     <var name='SCHEMA_SCHEMATYPE' type='DOMString' value='"http://www.w3.org/2001/XMLSchema"'/>
     <var name='NULL_SCHEMATYPE' type='DOMString' isNull='true'/>
     <!-- action types DOMParser.parseWithContext -->
     <var name='ACTION_REPLACE_CHILDREN' type='short' value='2'/>
     <var name='ACTION_APPEND_AS_CHILDREN' type='short' value='1'/>
     <var name='ACTION_INSERT_AFTER' type='short' value='4'/>
     <var name='ACTION_INSERT_BEFORE' type='short' value='3'/>
     <var name='ACTION_REPLACE' type='short' value='5'/>
     <!-- testfiles -->
     <var name='TEST0' type='DOMString' value='"test0"'/>
     <var name='TEST1' type='DOMString' value='"test1"'/>
     <var name='TEST2' type='DOMString' value='"test2"'/>
     <var name='TEST3' type='DOMString' value='"test3"'/>
     <var name='TEST4' type='DOMString' value='"test4"'/>
     <var name='TEST5' type='DOMString' value='"test5"'/>
     <var name='TEST6' type='DOMString' value='"test6"'/>
     <var name='TEST7' type='DOMString' value='"test7"'/>
     <var name='TESTPDF' type='DOMString' value='"testpdf"'/>
     <implementation var='implementation'/>
     <assign var='lsImplementation' value='implementation'/>
     <createLSParser var='builder' obj='lsImplementation' mode='MODE_SYNCHRONOUS' schemaType='NULL_SCHEMATYPE'/>
     <createLSSerializer var='writer' obj='lsImplementation'/>
     <createLSInput var='inputSource' obj='lsImplementation'/>
     <!-- parse the string -->
     <stringData obj='inputSource' value='stringDoc'/>
     <parse var='document' obj='builder' input='inputSource'/>
     <!-- apply the filter -->
     <filter obj='writer' value='myfilter' interface='LSSerializer'/>
     <!-- serialize result -->
     <writeToString var='writeResult' obj='writer' nodeArg='document'/>
     <!-- parse result -->
     <stringData obj='inputSource' value='writeResult' interface='LSInput'/>
     <parse var='document' obj='builder' input='inputSource'/>
     <!-- tests elt1 should be in the result-->
     <getElementsByTagName interface='Document' obj='document' tagname='"elt1"' var='elementList'/>
     <assertSize collection='elementList' size='1' id='count_elt2'/>
     <!-- attr1 of elt1 should have been suppressed -->
     <item interface='NodeList' obj='elementList' index='0' var='elt1'/>
     <getAttributeNode obj='elt1' var='attrNode' name='"attr1"'/>
     <assertNull actual='attrNode' id='attrib1'/>
</test>

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