public static Collection<Member> readServerConf(Collection<String> members) {
        Set<Member> nodes = new HashSet<>();
        
        for (String member : members) {
            Member target = singleParse(member);
            nodes.add(target);
        }
        
        return nodes;
    }
@Test
    void testReadServerConf() {
        Collection<String> address = new HashSet<>();
        address.add("1.1.1.1:3306");
        address.add("1.1.1.1");
        Collection<Member> actual = MemberUtil.readServerConf(address);
        assertEquals(2, actual.size());
    }