<?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 037 (AB)</t:title>
      <t:revision-history>
         <t:revision>
            <t:date>2021-12-30</t:date>
            <t:author>
               <t:name>Achim Berndzen</t:name>
            </t:author>
            <t:description xmlns="http://www.w3.org/1999/xhtml">
               <p>Test added.</p>
            </t:description>
         </t:revision>
      </t:revision-history>
   </t:info>
   <t:description xmlns="http://www.w3.org/1999/xhtml">
      <p>Tests function p:step-available with use-when.</p>
   </t:description>
   <t:pipeline>
      <p:declare-step name="main"
         version="3.0"
         xmlns:p="http://www.w3.org/ns/xproc"
         xmlns:ex="http://extension-step.org">
         
         <p:output port="result"/>
         
         <p:declare-step type="ex:test" use-when="p:step-available('ex:test1')">
            <p:output port="result" />
            <p:identity>
               <p:with-input><doc /></p:with-input>
            </p:identity>
         </p:declare-step>
         
         <p:declare-step type="ex:test1" use-when="p:step-available('ex:test2')">
            <p:output port="result" />
            <p:identity>
               <p:with-input><doc /></p:with-input>
            </p:identity>
         </p:declare-step>
         
         <p:declare-step type="ex:test2" use-when="false()">
            <p:output port="result" />
            <p:identity>
               <p:with-input><doc /></p:with-input>
            </p:identity>
         </p:declare-step>
         
         <p:identity>
            <p:with-input>
               <result>
                  <test>{p:step-available('ex:test')}</test>
                  <test1>{p:step-available('ex:test1')}</test1>
                  <test2>{p:step-available('ex:test2')}</test2>
               </result></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="result">The document root is not “result”.</s:assert>
               <s:assert test="result/test/text()='false'">p:step-available for 'ex:test' is wrong.</s:assert>
               <s:assert test="result/test1/text()='false'">p:step-available for 'ex:test1' is wrong.</s:assert>
               <s:assert test="result/test2/text()='false'">p:step-available for 'ex:test2' is wrong.</s:assert>
            </s:rule>
         </s:pattern>
      </s:schema>
   </t:schematron> 
</t:test>