Tests p:http-request with 'assert' testing header.
Test ab-http-request-058.xml is expected to pass.
It requires the following features: p:http-request.
<p:declare-step xmlns:p="http://www.w3.org/ns/xproc" version="3.0">
<p:output port="result"/>
<p:http-request href="http://localhost:8246/service/fixed-xml" assert=".?headers?content-type='application/xml'">
<p:with-input>
<p:empty/>
</p:with-input>
</p:http-request>
</p:declare-step>
<s:schema xmlns:s="http://purl.oclc.org/dsdl/schematron" queryBinding="xslt2">
<s:pattern>
<s:rule context="/">
<s:assert test="doc">The document root is not doc.</s:assert>
<s:assert test="doc/title/text()='Sample document'">The document title is not 'Sample document'.</s:assert>
<s:assert test="doc/p/text()='Hello world!'">The text in p is not 'Hello world!'</s:assert>
</s:rule>
</s:pattern>
</s:schema>
Added attribute 'queryBinding' to schematron's schema.
Changed headers to lower-case.
Added new tests for p:http-request.