Tests p:filter selecting a text node.
Test nw-filter-006.xml is expected to pass.
<p:declare-step xmlns:p="http://www.w3.org/ns/xproc" version="3.0">
<p:output port="result"/>
<p:identity>
<p:with-input>
<book>
<chapter>Hello, world.</chapter>
</book>
</p:with-input>
</p:identity>
<p:filter select="/book/chapter/text()"/>
<p:identity>
<p:with-input>
<result content-type="{p:document-property(., 'content-type')}">{.}</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="self::result">The result root is not result.</s:assert>
<s:assert test=". = 'Hello, world.'">The text content is incorrect.</s:assert>
<s:assert test="@content-type = 'text/plain'">The content-type is incorrect.</s:assert>
</s:rule>
</s:pattern>
</s:schema>
Test p:filter