public String generateFileName(){
  return new UniqueTestId().id + "_" + getCurrentTestClassName()+ "_"+ getCurrentTestMethodName()+ "_"+ getCurrentTestMethodLineNumber();
}

public String generateFileName ( ) { return new UniqueTestId ( ) . id + "_" + getCurrentTestClassName ( ) + "_" + getCurrentTestMethodName ( ) + "_" + getCurrentTestMethodLineNumber ( ) ; }
generates the filename for screenshot
