refactor: claim key 상수화, test yml에 jwt 설정 추가 (#23)

src/main/java/team05/integrated_feed_backend/module/auth/jwt/JwtUtil.java

@@ -22,6 +22,8 @@
 @Slf4j
 @Component
 public class JwtUtil {
+	private static final String CLAIM_MEMBER_ID = "memberId";
+	private static final String CLAIM_ACCOUNT = "account";
 
 	private final Key secretKey;
 
@@ -42,8 +44,8 @@ public String generateToken(Authentication authentication) {
 
 		// JWT 토큰에 포함되는 정보(페이로드): jwt의 주체 memberId로
 		Claims claims = Jwts.claims().setSubject(String.valueOf(memberId));
-		claims.put("memberId", memberId);
-		claims.put("account", account);
+		claims.put(CLAIM_MEMBER_ID, memberId);
+		claims.put(CLAIM_ACCOUNT, account);
 
 		Date now = new Date();
 		Date validity = new Date(now.getTime() + tokenValidityInseconds * 1000);
@@ -91,7 +93,7 @@ public String getAccount(String token) {
 			.build()
 			.parseClaimsJws(token)
 			.getBody()
-			.get("account", String.class);
+			.get(CLAIM_ACCOUNT, String.class);
 	}
 
 	// JWT 토큰 유효성 검증

src/test/resources/application.yml

@@ -0,0 +1,14 @@
+spring:
+  datasource:
+    url: jdbc:h2:mem:testdb;MODE=PostgreSQL
+    username: sa
+    driver-class-name: org.h2.Driver
+
+  jpa:
+    show-sql: true
+    hibernate:
+      ddl-auto: create-drop
+
+jwt:
+  secret: dGVzdC1zZWNyZXQta2V5
+  token-validity-in-seconds: 3600