[LNK-45] 링크 테스트 코드 작성 (Usecase)

build.gradle

@@ -2,6 +2,10 @@ plugins {
     id 'java'
     id 'org.springframework.boot' version '3.5.0'
     id 'io.spring.dependency-management' version '1.1.7'
+
+    // Kotlin
+    id 'org.jetbrains.kotlin.jvm' version '1.9.25'
+    id 'org.jetbrains.kotlin.plugin.spring' version '1.9.25'
 }
 
 group = 'leets'
@@ -41,6 +45,14 @@ dependencies {
     // Test
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
     testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
+    testImplementation "org.junit.jupiter:junit-jupiter:5.8.1"
+    testImplementation 'org.springframework.boot:spring-boot-testcontainers'
+    testImplementation 'org.testcontainers:junit-jupiter'
+    testImplementation 'org.testcontainers:mysql'
+    testImplementation 'org.testcontainers:mongodb'
+    testImplementation "io.mockk:mockk:1.13.10"
+    testImplementation 'org.jetbrains.kotlin:kotlin-test-junit5'
+    testImplementation 'org.jetbrains.kotlin:kotlin-stdlib'
 
     // S3
     implementation("software.amazon.awssdk:s3:2.31.54")

src/main/java/leets/leenk/domain/notification/domain/entity/Notification.java

@@ -1,29 +1,25 @@
 package leets.leenk.domain.notification.domain.entity;
 
 import leets.leenk.domain.notification.domain.entity.enums.NotificationType;
-import org.springframework.data.mongodb.core.mapping.Document;
-
-import jakarta.persistence.EnumType;
-import jakarta.persistence.Enumerated;
-import jakarta.persistence.Id;
-import leets.leenk.global.common.entity.BaseEntity;
+import leets.leenk.global.common.entity.MongoBaseEntity;
 import lombok.AccessLevel;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 import lombok.experimental.SuperBuilder;
+import org.springframework.data.annotation.Id;
+import org.springframework.data.mongodb.core.mapping.Document;
 
 @SuperBuilder
 @Getter
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
 @Document(collection = "notifications")
-public class Notification extends BaseEntity {
+public class Notification extends MongoBaseEntity {
 
     @Id
     private String id;
 
     private Long userId;
 
-    @Enumerated(EnumType.STRING)
     private NotificationType notificationType;
 
     private Boolean isRead;

src/main/java/leets/leenk/global/common/entity/MongoBaseEntity.java

@@ -0,0 +1,21 @@
+package leets.leenk.global.common.entity;
+
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.experimental.SuperBuilder;
+import org.springframework.data.annotation.CreatedDate;
+import org.springframework.data.annotation.LastModifiedDate;
+
+import java.time.LocalDateTime;
+
+@Getter
+@SuperBuilder
+@NoArgsConstructor
+public abstract class MongoBaseEntity {
+
+    @CreatedDate
+    private LocalDateTime createDate;
+
+    @LastModifiedDate
+    private LocalDateTime updateDate;
+}

src/main/resources/application-test.yml

@@ -0,0 +1,9 @@
+spring:
+  jpa:
+    hibernate:
+      ddl-auto: create-drop
+    show-sql: true
+    properties:
+      hibernate:
+        format_sql: true
+        dialect: org.hibernate.dialect.MySQL8Dialect

src/test/java/leets/leenk/config/MysqlTestConfig.java

@@ -0,0 +1,19 @@
+package leets.leenk.config;
+
+import org.springframework.boot.test.context.TestConfiguration;
+import org.springframework.boot.testcontainers.service.connection.ServiceConnection;
+import org.springframework.context.annotation.Bean;
+import org.testcontainers.containers.MySQLContainer;
+
+@TestConfiguration
+public class MysqlTestConfig {
+
+    private static final String MYSQL_IMAGE = "mysql:8.0.41";
+
+    @Bean
+    @ServiceConnection
+    public MySQLContainer<?> mysqlContainer() {
+        return new MySQLContainer<>(MYSQL_IMAGE)
+                .withDatabaseName("testdb");
+    }
+}

src/test/java/leets/leenk/config/TestContainersTest.java

@@ -0,0 +1,30 @@
+package leets.leenk.config;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+import org.springframework.context.annotation.Import;
+import org.testcontainers.containers.MySQLContainer;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+@DataJpaTest
+@Import(MysqlTestConfig.class)
+@AutoConfigureTestDatabase(replace = AutoConfigureTestDatabase.Replace.NONE)
+class TestContainersTest {
+
+    @Autowired
+    private MySQLContainer<?> mysqlContainer;
+
+
+    @Test
+    void MySQL_컨테이너_정상_동작_테스트() {
+        // MySQL 컨테이너 테스트
+        assertThat(mysqlContainer).isNotNull();
+        assertThat(mysqlContainer.isRunning()).isTrue();
+        assertThat(mysqlContainer.getDatabaseName()).isEqualTo("testdb");
+
+        System.out.println("MySQL Container JDBC URL: " + mysqlContainer.getJdbcUrl());
+    }
+}