These test uses schema validation but doesn't have the appropriate dependencies on the schema import and/or schema validation fatures, and doesn't reference an environment containing the specified schema.

   <test-case name="extvardef-026">
      <description>Schema validation in default external var, incl variable type. Type missmatch. </description>
      <created by="David Graf" on="2011-12-05"/>
      <dependency type="spec" value="XQ30+"/>
      <test><![CDATA[
        declare construction strip; 
        import schema namespace hats="http://www.w3.org/XQueryTest/hats" at "SchemaImport/hats.xsd"; 
        declare variable $x as schema-element(hats:s) external :=
          validate strict {
            <hats:abf> 
              <hats:a/> <hats:b/> <hats:b/> <hats:f/> <hats:f/> <hats:f/> 
            </hats:abf>};
        $x
      ]]></test>
      <result>
         <error code="XPTY0004"/>
      </result>
   </test-case>