The pipeline
<p:declare-step xmlns:dummy="http://dummy" xmlns:p="http://www.w3.org/ns/xproc" name="main" version="3.0">
<p:output port="result"/>
<p:declare-step type="dummy:test1">
<p:output port="result"/>
<p:option static="true" name="static-option" select="13"/>
<p:identity>
<p:with-input>
<doc1>{$static-option}</doc1>
</p:with-input>
</p:identity>
</p:declare-step>
<p:declare-step type="dummy:test2">
<p:output port="result"/>
<p:option static="true" name="static-option" select="14"/>
<p:identity>
<p:with-input>
<doc2>{$static-option}</doc2>
</p:with-input>
</p:identity>
</p:declare-step>
<dummy:test1 name="one"/>
<dummy:test2 name="two"/>
<p:wrap-sequence wrapper="result">
<p:with-input pipe="@one @two"/>
</p:wrap-sequence>
</p:declare-step>
Schematron validation
<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">The pipeline root is not “result”.</s:assert>
<s:assert test="result/doc1/text()='13'">Text child of doc1 is not
'13'.</s:assert>
<s:assert test="result/doc2/text()='14'">Text child of doc1 is not
'14'.</s:assert>
</s:rule>
</s:pattern>
</s:schema>
