tests/src/xinclude/tests/xinclude/tests/test13.xml

<?xml version="1.0"?>
<x xmlns="http://www.schemaTest.org/xinclude-test"
   xmlns:xi="http://www.w3.org/2001/XInclude"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://www.schemaTest.org/xinclude-test tests.xsd">
   <!-- tests that other elements from xi namespace are not allowed when include is successful -->
   <!-- EXPECT FAILURE -->
   <xi:include parse="xml"
               href="../included/elem.xml">
       <xi:other/>
   </xi:include>
</x>