[SoapUI] 通过Groovy写文本文件

如果文件已经存在，先删除，然后向文件中追加失败信息

if(maxRecordFail>0){
    def testResultFile = new File(projectDir+"\\TestResult\\PA_Integration Testing\\"+ currentStepName+".txt")
     if (testResultFile.exists()) {
         testResultFile.delete()
     }
    for(j=0; j<maxRecordFail; j++){
        String currentFailMessage = failMessageList.get(j)
        log.error currentFailMessage
        testResultFile.append(currentFailMessage+"\n" )
    }
    assert false,failMessageList.get(0)
}