question: private void addBestTestSuite ( File newlyGeneratedTestSuite ) { String testName = extractClassName ( tmpTests , newlyGeneratedTestSuite ) ; String path = testName . replace ( "." , File . separator ) + ".java" ; File file = new File ( getBestTestFolder ( ) + File . separator + path ) ; file . delete ( ) ; try { FileUtils . copyFile ( newlyGeneratedTestSuite , file ) ; } catch ( IOException e ) { logger . error ( "Failed to copy new generated test suite into the current best set: " + e . getMessage ( ) , e ) ; } }
target:  From the test suites generated in the last CTG run, add the given one to the current best set 