초기 닉네임 생성 정책 변경 (#264)

* feat: (#164) 초기 닉네임 생성 정책 변경

* test: (#263) 닉네임 유효성 검증 추가

* refactor: (#263) 초기 닉네임 prefix 변경

backend/src/main/java/com/votogether/domain/member/entity/Member.java

@@ -15,13 +15,16 @@
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
+import org.apache.commons.lang3.RandomStringUtils;
 
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
 @EqualsAndHashCode(of = {"id"})
 @Getter
 @Entity
 public class Member extends BaseEntity {
 
+ private static final String INITIAL_NICKNAME_PREFIX = "익명의손님";
+
  @Id
  @GeneratedValue(strategy = GenerationType.IDENTITY)
  private Long id;
@@ -69,9 +72,8 @@ private Member(
  }
 
  public static Member from(final KakaoMemberResponse response) {
- final NicknameNumberGenerator nicknameNumberGenerator = new NicknameNumberGenerator();
  return Member.builder()
- .nickname("익명의손님" + nicknameNumberGenerator.generate())
+ .nickname(INITIAL_NICKNAME_PREFIX + RandomStringUtils.random(10, true, true))
  .gender(Gender.valueOf(response.kakaoAccount().gender().toUpperCase()))
  .ageRange(response.kakaoAccount().ageRange())
  .birthday(response.kakaoAccount().birthday())

backend/src/main/java/com/votogether/domain/member/entity/Nickname.java

@@ -15,7 +15,7 @@
 public class Nickname {
 
  private static final int MINIMUM_NICKNAME_LENGTH = 2;
- private static final int MAXIMUM_NICKNAME_LENGTH = 16;
+ private static final int MAXIMUM_NICKNAME_LENGTH = 15;
 
  @Column(name = "nickname", length = 15, unique = true, nullable = false)
  private String value;

backend/src/test/java/com/votogether/domain/member/entity/NicknameTest.java

@@ -0,0 +1,47 @@
+package com.votogether.domain.member.entity;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+import com.votogether.exception.BadRequestException;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
+
+class NicknameTest {
+
+ @Test
+ @DisplayName("닉네임이 정상적으로 만들어진다.")
+ void create() {
+ // given
+ String value = "안녕";
+
+ // when
+ Nickname nickname = new Nickname(value);
+
+ // then
+ assertThat(nickname.getValue()).isEqualTo(value);
+ }
+
+ @ParameterizedTest
+ @ValueSource(strings = {"안", "", " ", "가나다라마바사아자차카타파하기니"})
+ @DisplayName("닉네임의 길이가 맞지 않으면 예외가 발생한다.")
+ void validateLength(String value) {
+ // when, then
+ assertThatThrownBy(() -> new Nickname(value))
+ .isInstanceOf(BadRequestException.class)
+ .hasMessage("닉네임의 길이가 올바르지 않습니다.");
+ }
+
+ @ParameterizedTest
+ @ValueSource(strings = {"저문@", "다%즐", ".루쿠", "아 벨"})
+ @DisplayName("한글, 영어, 숫자가 이외의 글자가 포함되어 있으면 예외를 던진다.")
+ void validateInvalidLetter(String value) {
+ // when, then
+ assertThatThrownBy(() -> new Nickname(value))
+ .isInstanceOf(BadRequestException.class)
+ .hasMessage("닉네임에 들어갈 수 없는 문자가 포함되어 있습니다.");
+ }
+
+}