Unit test in XSLT

expected-username.xml

<?xml version="1.0"?>
<root>
  <name username="JS1">John</name>
  <name username="MI1">Morka</name>
</root>

extract-username.xslt

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
  <xsl:output method="xml" indent="yes"/>
 
  <xsl:template match="/persons">
    <root>
      <xsl:apply-templates select="persons"/>
    </root>
  </xsl:template>
 
  <xsl:template match="person">
    <name username="{@username}">
      <xsl:value-of select="name" />
    </name>
  </xsl:template>
</xsl:stylesheet>

persons.xml

<?xml version="1.0" ?>
<persons>
  <person username="JS1">
    <name>John</name>
    <family-name>Smith</family-name>
  </person>
  <person username="MI1">
    <name>Morka</name>
    <family-name>Ismincius</family-name>
  </person>
</persons>

test.sh

#!/bin/bash

xsltproc extract-username.xslt persons.xml > /tmp/actual-username.xml
e=`openssl sha1 expected-username.xml | awk '{ print $2; }'`
a=`openssl sha1 /tmp/actual-username.xml | awk '{ print $2; }'`

if [[ "$a" == "$e" ]]; then
  echo "pass"
else
  echo "FAILURE"

  vimdiff /tmp/actual-username.xml expected-username.xml
fi