hoge.setRegularName("www.foo.com");
        hoge.setDuplicateHostName("www.foo.com:99");
        duplicateHostHelper.duplicateHostList.add(hoge);
    }

    @Test
    public void test_convert() {
        String url;
        String result;

        url = "http://foo.com";
        result = "http://www.foo.com";
        assertEquals(result, duplicateHostHelper.convert(url));