@Test public void testParseListToString() throws Exception { assertNull(ParserUtils.parseListToString(null, ",")); List<String> list = new ArrayList<String>(); list.add("e1"); list.add("e2"); list.add("e3"); list.add("e4"); assertEquals("[e1,e2,e3,e4]", ParserUtils.parseListToString(list, ",")); }