[oXygen-user] License of generate-xspec-tests-oxygen.xsl

20 Feb 2016

      Hi,

I posted a comment on the XSpec issue tracker related to this patch (https://github.com/expath/xspec/pull/74), I copy-paste it here below.

Best,

Sandro

I tested the support for testing XSLT 3.0 with this XSpec test:

<?xml version="1.0" encoding="UTF-8"?>
<x:description xmlns:x="http://www.jenitennison.com/xslt/xspec" stylesheet="unit-converter.xsl" xslt-version="3.0">

    <x:scenario label="When processing a data element with unit feet">
        <x:context>
            <data>
                <altitude>1200</altitude>
                <unit>feet</unit>
            </data>
        </x:context>

        <x:expect label="convert feet to meters">
            <data>
                <altitude>365.76</altitude>
                <unit>meters</unit>
            </data>
        </x:expect>
    </x:scenario>

</x:description>

It tests the following XSLT which makes use of high-order functions, a new feature of XSLT 3.0 (the example is adapted from www.xfront.com/Pearls-of-XSLT-and-XPath-3-0-Design.pdf<http://www.xfront.com/Pearls-of-XSLT-and-XPath-3-0-Design.pdf>).

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:xs="http://www.w3.org/2001/XMLSchema"
    xmlns:math="http://www.w3.org/2005/xpath-functions/math" exclude-result-prefixes="xs math"
    version="3.0">

    <xsl:variable name="unit-converter"
        select="function(
        $value as xs:decimal,
        $f as function(item()*) as item()*
        )
        as xs:decimal
        {$f($value)}"/>

    <xsl:variable name="feet-to-meters"
        select="function(
        $a as xs:decimal
        )
        as xs:decimal
        {$a * 0.3048}"/>

    <xsl:template match="data[unit='feet']">
        <xsl:copy>
            <altitude>
                <xsl:value-of select="$unit-converter(altitude, $feet-to-meters)"/>
            </altitude>
            <unit>meters</unit>
        </xsl:copy>
    </xsl:template>

</xsl:stylesheet>

I run this test with Oxygen 14.2 (which includes the Oxygen patch) and the test goes through successfully. However, I noticed that with this patch it is compulsory to specify the @xslt-versionwith the value '3.0' when testing an XSLT 3.0. If the attribute is not provided, the Oxygen ant file complains that XPath 3.0 is needed to run the test.

If the patch is changed from:

<stylesheet version="{( @xslt-version, '2.0' )[1]}">

to:

<stylesheet version="{if ( @xslt-version, '3.0' ) then '3' else '2'}">

the XSpec test runs correctly even if @xslt-version is not provided.

I wonder if this implementation may be more suitable as it does not force to specify the @xslt-version in the XSpec test, one only needs to specify the XSLT version in the actual XSL stylesheet. It also seems to me more consistent when writing XSpec tests for XSLT 2.0 as it is not required to specify @xslt-version in the XSpec test.

Unfortunately I'm unable to test this implementation when running XSpec from the command line as XSLT 3.0 requires saxon9ee.jar (I only have saxon9he.jar available).

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[oXygen-user] License of generate-xspec-tests-oxygen.xsl

CIRULLI, Sandro