assertNotNull(helper.duplicateHostList);
        } catch (Exception e) {
            fail("init() should not throw an exception: " + e.getMessage());
        }
    }

    public void test_setDuplicateHostList() {
        DuplicateHostHelper helper = new DuplicateHostHelper();
        List<DuplicateHost> testList = new ArrayList<>();

        DuplicateHost testHost = new DuplicateHost();