JUnit report formatting in Grails

Sometimes it is needed to add some additional information to JUnit report. For example, if you want to add screenshots and so on. It can be easily done in Grails.
First, you need to modify scripts/_Events.groovy and redefine reporting template folder.

eventAllTestsStart = {
  junitReportStyleDir = "src/templates/reports/"
}

Then create src/templates/reports folder and just add junit-frames.xsl and junit-noframes.xsl from lib folder under Grails home.

Now Grails will use these files to format test results.