diff --git a/src/main/kotlin/com/back/koreaTravelGuide/domain/userChat/chatmessage/entity/ChatMessage.kt b/src/main/kotlin/com/back/koreaTravelGuide/domain/userChat/chatmessage/entity/ChatMessage.kt
index cfad985..61dce64 100644
--- a/src/main/kotlin/com/back/koreaTravelGuide/domain/userChat/chatmessage/entity/ChatMessage.kt
+++ b/src/main/kotlin/com/back/koreaTravelGuide/domain/userChat/chatmessage/entity/ChatMessage.kt
@@ -17,7 +17,7 @@ import java.time.ZonedDateTime
 )
 data class ChatMessage(
     @Id @GeneratedValue(strategy = GenerationType.IDENTITY)
-    val id: Long? = null,
+    var id: Long? = null,
     @Column(name = "room_id", nullable = false)
     val roomId: Long,
     @Column(name = "sender_id", nullable = false)
diff --git a/src/main/kotlin/com/back/koreaTravelGuide/domain/userChat/chatroom/entity/ChatRoom.kt b/src/main/kotlin/com/back/koreaTravelGuide/domain/userChat/chatroom/entity/ChatRoom.kt
index 93e5009..b71f526 100644
--- a/src/main/kotlin/com/back/koreaTravelGuide/domain/userChat/chatroom/entity/ChatRoom.kt
+++ b/src/main/kotlin/com/back/koreaTravelGuide/domain/userChat/chatroom/entity/ChatRoom.kt
@@ -17,7 +17,7 @@ import java.time.ZonedDateTime
 )
 data class ChatRoom(
     @Id @GeneratedValue(strategy = GenerationType.IDENTITY)
-    val id: Long? = null,
+    var id: Long? = null,
     @Column(nullable = false)
     val title: String,
     @Column(name = "guide_id", nullable = false)
diff --git a/src/test/kotlin/com/back/koreaTravelGuide/config/TestConfig.kt b/src/test/kotlin/com/back/koreaTravelGuide/config/TestConfig.kt
index ac16daa..e34dd4d 100644
--- a/src/test/kotlin/com/back/koreaTravelGuide/config/TestConfig.kt
+++ b/src/test/kotlin/com/back/koreaTravelGuide/config/TestConfig.kt
@@ -1,14 +1,51 @@
 package com.back.koreaTravelGuide.config
 
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule
+import com.fasterxml.jackson.module.kotlin.KotlinModule
 import org.mockito.Mockito
+import org.springframework.boot.autoconfigure.jackson.Jackson2ObjectMapperBuilderCustomizer
 import org.springframework.boot.test.context.TestConfiguration
 import org.springframework.context.annotation.Bean
 import org.springframework.context.annotation.Primary
 import org.springframework.data.redis.connection.RedisConnectionFactory
+import org.springframework.data.redis.core.RedisTemplate
+import org.springframework.data.redis.core.ValueOperations
 
 @TestConfiguration
 class TestConfig {
     @Bean
     @Primary
-    fun redisConnectionFactory(): RedisConnectionFactory = Mockito.mock(RedisConnectionFactory::class.java)
+    fun testRedisConnectionFactory(): RedisConnectionFactory = Mockito.mock(RedisConnectionFactory::class.java)
+
+    @Bean
+    @Primary
+    fun testRedisTemplate(): RedisTemplate<String, String> {
+        @Suppress("UNCHECKED_CAST")
+        val template = Mockito.mock(RedisTemplate::class.java) as RedisTemplate<String, String>
+
+        @Suppress("UNCHECKED_CAST")
+        val valueOps = Mockito.mock(ValueOperations::class.java) as ValueOperations<String, String>
+
+        Mockito.`when`(template.opsForValue()).thenReturn(valueOps)
+        Mockito.`when`(valueOps.get(Mockito.anyString())).thenReturn(null)
+
+        return template
+    }
+
+    @Bean
+    fun javaTimeModuleCustomizer(): Jackson2ObjectMapperBuilderCustomizer {
+        return Jackson2ObjectMapperBuilderCustomizer { builder ->
+            builder.modulesToInstall(JavaTimeModule())
+        }
+    }
+
+    @Bean
+    @Primary
+    fun testObjectMapper(): ObjectMapper {
+        return ObjectMapper().apply {
+            registerModule(JavaTimeModule())
+            registerModule(KotlinModule.Builder().build())
+        }
+    }
 }