인프런 커뮤니티 질문&답변

해당 부분 고쳐도 아래와 같이 출력과 오류메시지 나오고 안됩니다..

discountCode = fixDiscoountPolicy

discountPolicy = null

java.lang.NullPointerException: Cannot invoke "hello.core.discount.DiscountPolicy.discount(hello.core.member.Member, int)" because "discountPolicy" is null

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코드 첨부합니다

package hello.core.autowired;

import hello.core.AutoAppConfig;
import hello.core.discount.DiscountPolicy;
import hello.core.member.Grade;
import hello.core.member.Member;
import org.assertj.core.api.Assertions;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;

import java.util.List;
import java.util.Map;

import static org.assertj.core.api.Assertions.*;

public class AllBeanTest {
    
    @Test
    void findAllBean(){
        ApplicationContext ac = new AnnotationConfigApplicationContext(AutoAppConfig.class, DiscountService.class);
        DiscountService discountService = ac.getBean(DiscountService.class);
        Member member = new Member(1L, "userA", Grade.VIP);
        int discountPrice = discountService.discount(member,10000,"fixDiscoountPolicy");
        assertThat(discountService).isInstanceOf(DiscountService.class);
        assertThat(discountPrice).isEqualTo(1000);
        int rateDiscountPolicy = discountService.discount(member, 20000, "rateDiscountPolicy");
        assertThat(rateDiscountPolicy).isEqualTo(2000);
    }
    static class DiscountService {
        private final Map<String, DiscountPolicy> policyMap;
        private final List<DiscountPolicy> policies;

        public DiscountService(Map<String, DiscountPolicy> policyMap, List<DiscountPolicy> policies) {
            this.policyMap = policyMap;
            this.policies = policies;
            System.out.println("policyMap = " + policyMap);
            System.out.println("policies = " + policies);
        }

        public int discount(Member member, int price, String discountCode) {

            DiscountPolicy discountPolicy = policyMap.get(discountCode);
            System.out.println("discountCode = " + discountCode);
            System.out.println("discountPolicy = " + discountPolicy);
            return discountPolicy.discount(member,price);
        }
    }
}

AutoAppConfigTest 에서 basicScan 테스트 오류는 아래와 같습니다.

org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'hello.core.order.OrderServiceImpl' available

해당 AutoAppConfig 보면 강의와 같이 hello.core.member로 했습니다. 그래서 member패키지 밑에 order패키지도 있으니깐, 컴포넌트 스캔이자동으로 되서 빈이 잘 등록? 된다고 알고 있는데 빈을 찾을 수 없다고 오류나는 것 같아요 근데 왜 그런지 잘 모르겠습니다.

member와 order는 같은 레벨의 패키지 같습니다.

hello.core까지만 패키지를 지정하셔서 컴포넌트 스캔을 진행해 보시겠어요?