<?xml version="1.0" encoding="UTF-8"?>
<t:test expected="pass"
        xmlns:t="http://xproc.org/ns/testsuite/3.0">
   <t:info>
      <t:title>Step available 003 (NW)</t:title>
      <t:revision-history>
         <t:revision>
            <t:date>2024-04-01</t:date>
            <t:author>
               <t:name>Norm Tovey-Walsh</t:name>
            </t:author>
            <t:description xmlns="http://www.w3.org/1999/xhtml">
               <p>Initial commit</p>
            </t:description>
         </t:revision>
      </t:revision-history>
   </t:info>
   <t:description xmlns="http://www.w3.org/1999/xhtml">
      <p>Test a user-defined step with a body that is conditionally present.</p>
   </t:description>
   <t:pipeline>
      <p:declare-step name="main"
                      version="3.0"
                      xmlns:p="http://www.w3.org/ns/xproc"
                      xmlns:ex="http://example.com/ns/xproc-extensions">
         <p:output port="result"/>

         <p:declare-step type="ex:step1">
            <p:input port="source"/>
            <p:output port="result"/>
            <p:identity use-when="p:step-available('ex:step2')"/>
         </p:declare-step>

         <p:declare-step type="ex:step2">
            <p:input port="source"/>
            <p:output port="result"/>
         </p:declare-step>

         <p:identity>
           <p:with-input use-when="p:step-available('ex:step1')">
             <available/>
           </p:with-input>
           <p:with-input use-when="not(p:step-available('ex:step1'))">
             <not-available/>
           </p:with-input>
         </p:identity>
      </p:declare-step>
   </t:pipeline>
   <t:schematron>
      <s:schema queryBinding="xslt2"
                xmlns:s="http://purl.oclc.org/dsdl/schematron"
                xmlns="http://www.w3.org/1999/xhtml">
         <s:pattern>
            <s:rule context="/">
               <s:assert test="not-available">The step should not be available.</s:assert>
            </s:rule>
         </s:pattern>
      </s:schema>
   </t:schematron>
</t:test>
