#13 spring transaction : propagation - singleTx

spring-transaction/src/main/java/com/example/springtransaction/propagation/LogRepository.java

@@ -15,7 +15,7 @@ public class LogRepository {
 
     private final EntityManager em;
 
-    @Transactional
+//    @Transactional
     public void save(Log logMessage) {
         log.info("log 저장");
         em.persist(logMessage);

spring-transaction/src/main/java/com/example/springtransaction/propagation/MemberRepository.java

@@ -15,7 +15,7 @@ public class MemberRepository {
 
     private final EntityManager em;
 
-    @Transactional
+//    @Transactional
     public void save(Member member) {
         log.info("member 저장");
         em.persist(member);

spring-transaction/src/main/java/com/example/springtransaction/propagation/MemberService.java

@@ -3,6 +3,7 @@ package com.example.springtransaction.propagation;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
 @Slf4j
 @Service
@@ -12,6 +13,7 @@ public class MemberService {
     private final MemberRepository memberRepository;
     private final LogRepository logRepository;
 
+    @Transactional
     public void joinV1(String username) {
         Member member = new Member(username);
         Log logMessage = new Log(username);

spring-transaction/src/test/java/com/example/springtransaction/propagation/MemberServiceTest.java

@@ -1,12 +1,12 @@
 package com.example.springtransaction.propagation;
 
 import lombok.extern.slf4j.Slf4j;
-import org.assertj.core.api.Assertions;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 
-import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 @Slf4j
 @SpringBootTest
@@ -57,4 +57,21 @@ class MemberServiceTest {
         assertTrue(logRepository.find(username).isEmpty());
     }
 
+    /**
+     * memberService    @Transactional:ON
+     * memberRepository @Transactional:OFF
+     * logRepository    @Transactional:OFF
+     */
+    @Test
+    void singleTx() {
+        //given
+        String username = "singleTx_success";
+
+        //when
+        memberService.joinV1(username);
+
+        //then
+        assertTrue(memberRepository.find(username).isPresent());
+        assertTrue(logRepository.find(username).isPresent());
+    }
 }