test/schemas/union_0_0.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<foo xmlns="http://foo" 
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xsi:schemaLocation="http://foo union_0_0.xsd">
      <em>EMP0090</em>
      <em>EMP0099</em>
</foo>