jenkins unreal -> junit conversion

gistfile1.txt

// some of this via https://unrealcommunity.wiki/jenkins-ci-amp-test-driven-development-6912tx0c
def convertTestsReport(String unrealReportDir, String outputFileName) {
    def jsonReport = readFile file: "${unrealReportDir}\\index.json", encoding: "UTF-8"
    // Needed because the JSON is encoded in UTF-8 with BOM

    jsonReport = jsonReport.replace( "\uFEFF", "" );

    def xmlContent = transformReport( jsonReport )

    writeFile file: "${unrealReportDir}\\${outputFileName}", text: xmlContent.toString()
}

import groovy.json.JsonSlurper
import groovy.xml.MarkupBuilder

@NonCPS//atomic method
def transformReport( String jsonContent ) {

    def parsedReport = new JsonSlurper().parseText( jsonContent )
    
    def jUnitReport = new StringWriter()
    def builder = new MarkupBuilder( jUnitReport )

    builder.doubleQuotes = true
    builder.mkp.xmlDeclaration version: "1.0", encoding: "utf-8"

    builder.testsuite( tests: parsedReport.succeeded + parsedReport.failed, failures: parsedReport.failed, time: parsedReport.totalDuration ) {
      for ( test in parsedReport.tests ) {
        builder.testcase( name: test.testDisplayName, classname: test.fullTestPath, status: test.state ) {
          if(test.state == "Fail") {
            for ( entry in test.entries ) { 
              if(entry.event.type == "Error") {
                builder.failure( message: entry.event.message, type: entry.event.type, entry.filename + " " + entry.lineNumber )
              }
            }
          }
        }
      }
    } 

    return jUnitReport.toString()
}