Checks XD0008 is NOT raised if more than one document appears as connection of p:variable and @connection is missing and the variable is not used.
Test ab-variable-021a.xml is expected to pass.
It requires the following features: lazy-eval.
<p:declare-step xmlns:p="http://www.w3.org/ns/xproc" version="3.0">
<p:output port="result"/>
<p:variable name="var" select="count(.)">
<doc xmlns=""/>
<doc xmlns=""/>
</p:variable>
<p:identity>
<p:with-input>
<doc xmlns=""/>
</p:with-input>
</p:identity>
</p:declare-step>
<s:schema xmlns:s="http://purl.oclc.org/dsdl/schematron">
<s:pattern>
<s:rule context="/">
<s:assert test="doc">The pipeline root is not doc.</s:assert>
<s:assert test="count(doc/node())=0">The root element does not have exactly no children.</s:assert>
</s:rule>
</s:pattern>
</s:schema>
New tests. Some tests changed to new order in p:pipe