### Question:
CommonUtil { public static String removeEscapingCharacters(String str) { return str.replaceAll("\"", "").replaceAll("\n", "").replaceAll("&apos;", "").replaceAll("&lt", "").replaceAll("&gt", ""); } private  CommonUtil(); static boolean isEmpty(List list); static boolean isBlank(String str); static String sanitize(String v); static String DateToDayString(Date date); static Date dayToDate(String day); static String convertToString(List<String> list); static Map convertToMap(Object object); static List<String> removeStringFromItems(List<String> list, String toRemove); static Integer determinePriceCatForCPM(double price); static Integer determinePriceCatForCPC(double price); static Integer determinePriceCatForCPD(double price); static Integer determinePriceCatForCPT(double price); static Integer determinePriceCat(double price, TargetingChannel.PriceModel priceModel); static String removeEscapingCharacters(String str); static boolean equalNumbers(double d1, double d2);  }### Answer:
@Test public void removeEscapingCharacters() { String s = " aasd " + "\n" + "ASDFSf safw" + "\"" + "sfdnsd" + "&gt " + "waofes nasdfw " + "\n"; assertTrue(CommonUtil.removeEscapingCharacters(s).equals(" aasd ASDFSf safwsfdnsd waofes nasdfw ")); }