@WebMvcTest 에러 : JPA metamodel must not be empty!
1. 에러 원문 java.lang.IllegalStateException: Failed to load ApplicationContext at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:132) at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:123) at org.springframework.boot.test.mock.mockito.MockitoTestExecution..