tests/conf/boolean/boolean86.xml

<?xml version="1.0" encoding="UTF-8"?>
<doc>
  <avj>
    <bool>
      <b>true</b>
      <c></c>
      <d>false?</d>
      <e>1</e>
      <f>0</f>
    </bool>
  </avj>
</doc>