Tests TVTs.
Test ab-tvt-008.xml is expected to pass.
<p:declare-step xmlns:p="http://www.w3.org/ns/xproc" name="pipeline" version="3.0">
   <p:output port="result">
   <p:identity>
      <p:with-input>
         <result>{concat("""}""", 'text', """{""")}</result>
      </p:with-input>
   </p:identity>
</p:declare-step>
<s:schema xmlns="http://www.w3.org/1999/xhtml" xmlns:s="http://purl.oclc.org/dsdl/schematron" queryBinding="xslt2">
   <s:ns prefix="c" uri="http://www.w3.org/ns/xproc-step">
   <s:pattern>
      <s:rule context="/">
         <s:assert test="result">Root element is not 'result'.</s:assert>"}
               
               <s:assert test="result/text()='"}"text"{"'">The text child of result is not '"}"text"{"'.</s:assert>
      </s:rule>
   </s:pattern>
</s:schema>
Added attribute 'queryBinding' to schematron's schema.
Tests variable and fixed parts in TVT are correctly handled.