Tests replacing attribute value with p:add-attribute (attribute name in namespace).
Test ab-add-attribute-013.xml is expected to pass.
<p:declare-step xmlns:p="http://www.w3.org/ns/xproc" version="3.0">
<p:output port="result"/>
<p:add-attribute match="/doc" attribute-value="5">
<p:with-input>
<doc xmlns:x="http://att-namespace" x:att="4"/>
</p:with-input>
<p:with-option name="attribute-name" select="'Q{http://att-namespace}att'"/>
</p:add-attribute>
</p:declare-step>
<s:schema xmlns:s="http://purl.oclc.org/dsdl/schematron" queryBinding="xslt2">
<s:ns prefix="a" uri="http://att-namespace"/>
<s:pattern>
<s:rule context="/">
<s:assert test="doc">The document root is not doc.</s:assert>
<s:assert test="doc/@a:att">There is not attribute "Q{http://att-namespace}att" at doc.</s:assert>
<s:assert test="doc/@a:att=5">Value of attribute "Q{http://att-namespace}att" is not 5.</s:assert>
</s:rule>
</s:pattern>
</s:schema>
Added attribute 'queryBinding' to schematron's schema.
Added new tests for p:add-attribute.