Tests p:xquery: JSON maps can be source docs in XQuery 3.1
Test ab-xquery-021.xml is expected to pass.
It requires the following features: xquery_3_1.
<p:declare-step xmlns:p="http://www.w3.org/ns/xproc" version="3.0">
<p:output port="result"/>
<p:xquery version="3.1">
<p:with-input port="source">
<p:inline content-type="application/json">{{"key" : "value"}}</p:inline>
</p:with-input>
<p:with-input port="query">
<p:inline content-type="text/plain">
declare namespace map="http://www.w3.org/2005/xpath-functions/map";
<result>{{map:get(., 'key')}}</result>
</p:inline>
</p:with-input>
</p:xquery>
</p:declare-step>
<s:schema xmlns="http://www.w3.org/1999/xhtml" xmlns:s="http://purl.oclc.org/dsdl/schematron" queryBinding="xslt2">
<s:pattern>
<s:rule context="/">
<s:assert test="result">Root element is not 'result'.</s:assert>
<s:assert test="result/text()='value'">Root element does not have text 'value'.</s:assert>
</s:rule>
</s:pattern>
</s:schema>
Added attribute 'queryBinding' to schematron's schema.
Added explicit request for XQuery 3.1
Tests for p:xquery (Partly ported from 1.0)