tests/xinclude/tests/test26.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">
   <!-- test including a resource that isn't there, when parse="text" -->
   <!-- EXPECT FAILURE -->
   <xi:include parse="text"
               href="../included/invalid.xml"/>
</x>