Convert Unity test results XML file into proper NUnit format

fix-unity-test-results.sh

#!/usr/bin/env bash
#
# Usage: ./fix-unity-test-results.sh
#
# Unity uses NUnit under the hood for its test framework. Their command line tool outputs a NUnit
# test result XML file. See documentation:
#   * https://github.com/nunit/docs/wiki/Test-Result-XML-Format#test-suite
# 
# The format of this file is currently incorrect. The root element for NUnit XML test results files
# should be a '<test-run>' tag, which is missing from Unity's test results file. See issue on forum:
#   * https://forum.unity3d.com/threads/unity-test-tools.218287/page-6#post-3188590
#
# This script uses the XMLStarlet command line tool and 'script/build/fix-unity-test-results.xslt'
# to convert the incorrect test results XML file into the correct format. This allows the Jenkins
# NUnit plugin to convert the NUnit test results file into a JUnit test results file so Jenkins can
# understand and record test results.
#
set -euo pipefail

xml tr fix-unity-test-results.xslt unity-test-results.xml > nunit-test-results.xml

fix-unity-test-results.xslt

<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:output method="xml" version="1.0" encoding="utf-8" indent="yes" cdata-section-elements="message"/>
  <xsl:strip-space elements="*"/>

  <xsl:template match="/">
    <test-run id="2" engine-version="3.0" clr-version="4.0">
      <xsl:copy-of select="(test-suite/@*)[contains('|testcasecount|result|start-time|end-time|duration|total|passed|failed|inconclusive|skipped|asserts|', concat('|', name(), '|'))]" />
      <xsl:apply-templates select="@*|node()"/>
    </test-run>
  </xsl:template>

  <xsl:template match="node()|@*">
    <xsl:copy>
      <xsl:apply-templates select="@*|node()"/>
    </xsl:copy>
  </xsl:template>
</xsl:stylesheet>

This is the related Unity forum post

Been awhile but, I want to mention that with the current version I'm using 1.4.5 the root tag has been corrected to <test-run>.