tests/org.eclipse.emf.test.xml/data/xsd/enum.xml

<?xml version="1.0" encoding="utf-8"?>
<root xmlns="http://enum.tests" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://enum.tests enum.xsd">
<enum>ALRT</enum>
</root>