[Feature] - BE 테스트 개선 Bean Lazy Initialization 도입 (#664)

Author: nak-honest

backend/src/test/resources/application-test.yml

@@ -23,6 +23,8 @@ cloud:
 server:
   port: 8081
 spring:
+  main:
+    lazy-initialization: true
   config:
     activate:
       on-profile: test