Wild Backend Cart application 테스트 실행 ./gradlew test 애플리케이션(서버) 실행 ./gradlew bootRun curl로 간단히 테스트하기 curl -i localhost:8080 curl -i localhost:8080/cart/line-items curl -i -X POST -H "Content-Type: application/json" \ -d '{"productId":"product-1","quantity":2}' \ localhost:8080/cart/line-items