중복회원 테스트 @Test public void 중복_회원_예외() throws Exception { //given final Member member1 = new Member(); member1.setName("lby"); final Member member2 = new Member(); member2.setName("lby"); //when memberService.join(member1); try { memberService.join(member2); } catch (IllegalStateException e) { return; } //then fail("예외가 발생해야 한다."); } 회원등록할때 private void validateDuplicateMember(Member member) { fi..