Xalan-J xsl test cases for xpath 3.1 function fn:random-number-generator, questions

Hi all,
   I've few questions as follows.

There was a commit to Xalan-J's XSLT 3.0 development branch few
minutes ago, for an implementation of XPath 3.1 function
fn:random-number-generator.

I wish to write an XSL 3 test case for that, on Xalan-J's XSLT 3.0
development branch.

I have following two XSLT stylesheets for this, along with the
mentioned XSL stylesheet transformation results.

1)

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                         xmlns:xs="http://www.w3.org/2001/XMLSchema"
                         xmlns:fn0="http://fn0"
                         exclude-result-prefixes="xs fn0"
                         version="3.0">

   <xsl:output method="xml" indent="yes"/>

   <xsl:template match="/">
       <result>
             <xsl:variable name="rngFunc"
select="random-number-generator()" as="map(xs:string, item())"/>
             <one><xsl:value-of select="$rngFunc?number"/></one>
             <two><xsl:value-of select="let $fn1 := $rngFunc?next,
$fn2 := $fn1() return $fn2?number"/></two>
             <three><xsl:value-of select="let $fn1 := $rngFunc?permute
return $fn1((1,2,3,4,5,6,7))"/></three>
       </result>
   </xsl:template>

</xsl:stylesheet>

XSL transformation result:

<?xml version="1.0" encoding="UTF-8"?><result>
    <one>0.6085228890023606</one>
    <two>0.0834059172050203</two>
    <three>2 3 1 6 4 5 7</three>
</result>

2)

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                         xmlns:xs="http://www.w3.org/2001/XMLSchema"
                         xmlns:fn0="http://fn0"
                         exclude-result-prefixes="xs fn0"
                         version="3.0">

   <xsl:output method="xml" indent="yes"/>

   <xsl:template match="/">
      <result>
           <xsl:variable name="rngFunc"
select="random-number-generator()" as="map(xs:string, item())"/>
           <number><xsl:value-of select="$rngFunc?number"/></number>
           <xsl:variable name="seq1" select="(1,2,3,4,5,6,7)" as="xs:integer*"/>
           <sequence><xsl:value-of select="let $fn1 :=
$rngFunc?permute return $fn1($seq1)"/></sequence>
           <xsl:for-each select="1 to 3">
                 <number_and_sequence id="{.}">
                      <number><xsl:value-of select="let $fn1 :=
$rngFunc?next, $fn2 := $fn1() return $fn2?number"/></number>
                      <sequence><xsl:value-of select="let $fn1 :=
$rngFunc?permute return $fn1($seq1)"/></sequence>
                 </number_and_sequence>
           </xsl:for-each>
      </result>
   </xsl:template>

</xsl:stylesheet>

XSL transformation result:

<?xml version="1.0" encoding="UTF-8"?><result>
  <number>0.6098714393771809</number>
  <sequence>7 5 2 3 6 1 4</sequence>
  <number_and_sequence id="1">
       <number>0.0657944709157764</number>
       <sequence>3 7 4 1 2 6 5</sequence>
  </number_and_sequence>
  <number_and_sequence id="2">
       <number>0.2284167574420906</number>
       <sequence>1 6 2 3 4 7 5</sequence>
  </number_and_sequence>
  <number_and_sequence id="3">
       <number>0.7263336140028495</number>
       <sequence>5 7 3 6 2 4 1</sequence>
  </number_and_sequence>
</result>

How can we write JUnit test cases for these mentioned XSL
transformation stylesheets, since these XSL transformation results
produce numeric random values and permutations?

Thanks in advance for any answers.


-- 
Regards,
Mukul Gandhi