If no content-type is provided, multipart/mixed must be used.
Test nw-http-request-127.xml is expected to pass.
It requires the following features: p:http-request.
<p:declare-step xmlns:c="http://www.w3.org/ns/xproc-step" xmlns:err="http://www.w3.org/ns/xproc-error" xmlns:p="http://www.w3.org/ns/xproc" xmlns:xs="http://www.w3.org/2001/XMLSchema" exclude-inline-prefixes="c xs" version="3.0">
<p:output port="result"/>
<p:http-request href="http://localhost:8246/service/check-multipart" method="post">
<p:with-input>
<p:inline document-properties="map{'serialization': map {'encoding': 'iso-8859-1'}}">
<doc1>These characters will be encoded as ISO Latin 1, but will
be returned in the middle of a UTF-8 document by check-multipart. So don’t
actually put any characters in here that would be invalid UTF-8 sequences when
encoded in ISO Latin 1.</doc1>
</p:inline>
<p:inline document-properties="map{'serialization': map {'encoding': 'utf-8'}}">
<doc2>Résumé</doc2>
</p:inline>
</p:with-input>
</p:http-request>
</p:declare-step>
<s:schema xmlns="http://www.w3.org/1999/xhtml" xmlns:err="http://www.w3.org/ns/xproc-error" xmlns:s="http://purl.oclc.org/dsdl/schematron" queryBinding="xslt2">
<s:ns prefix="p" uri="http://www.w3.org/ns/xproc"/>
<s:ns prefix="c" uri="http://www.w3.org/ns/xproc-step"/>
<s:pattern>
<s:rule context="/*">
<s:assert test="self::check-multipart">The root is not check-multipart.</s:assert>
<s:assert test="contains(part[1]/header[lower-case(@name) = 'content-type'], '8859')">The first part has the wrong charset.</s:assert>
<s:assert test="contains(lower-case(part[2]/header[lower-case(@name) = 'content-type']), 'utf-8')">The second part has the wrong charset.</s:assert>
</s:rule>
</s:pattern>
</s:schema>
Check multipart serialization properties.