Script to perform diff between two Intellij test run result which are exported as xml

diffIntellijTestResult.groovy

/**
 * Utility class that diffs 2 Intellij test runs and performs diff between the two runs. It works
 * on xml report created by Intellij as mentioned in http://www.jetbrains.com/idea/webhelp/export-test-results.html
 *
 * How to run
 *
 * - Run first test suite and export the result as xml
 * - Run first test suite again post change and export the result as xml
 *
 * Run the script
 * groovy diffIntellijTestResult.groovy result1.xml result2.xml
 *
 * It would produce a table of diff
 */

def cli = new CliBuilder(
        usage: 'diffTestResult file1 file2',
        header: '\nAvailable options (use -h for help):\n',
        footer: '\nPerforms diff of the test result\n',
        posix: true
)

cli.with {
    h(longOpt: 'help', 'Usage Information', required: false)
}

opt = cli.parse(args)
if (!opt) return
if (opt.h) {cli.usage(); return}

def arguments = opt.arguments()

assert arguments.size() == 2, "two files should be provided in input"


def r1 = parseSuites(parseFile(arguments[0]).suite,[:])
def r2 = parseSuites(parseFile(arguments[1]).suite,[:])

def comparison = []
r1.each{String name, TestInfo ti1 ->
    TestInfo ti2 = r2[name]
    if (ti1.status != ti2?.status){
        comparison << [name:name, first:ti1, second:ti2]
    }
}

println "||Test||First Run||Second Run||"
comparison.each{c ->
    println "|$c.name|$c.first.status|$c.second.status|"
}

def parseSuites(def suite,def resultMap){
    def suiteName = suite.@name.text()
    suite.test.each{t ->
        def ti = new TestInfo(suiteName:suiteName,methodName:t.@name.text(),status: t.@status.text() )
        resultMap[ti.name()] = ti
    }
    suite.suite.each{s ->
        parseSuites(s,resultMap)
    }
    return resultMap
}



def parseFile(def path){
    File f = new File(path)
    assert f.exists(), "File $f does not exist"
    String text = f.text
    //Need to fix the output as the stdout/stderr might contain  invalid chars
    //wrap them in cdata
    text = text.replace('<output type="stderr">','<output type="stderr"><![CDATA[')
    text = text.replace('<output type="stdout">','<output type="stdout"><![CDATA[')
    text = text.replace('</output>',']]></output>')
    return new XmlSlurper().parseText(text)
}

class TestInfo {
    String suiteName
    String status
    String methodName
    int duration

    def name(){
        suiteName +'.'+methodName
    }

    @Override
    public String toString() {
        return name() + '-' + status
    }
}