test : 회원 등록 기능 테스트 추가

* 만들면서 배우는 클린 아키텍처 initial commit

* refactor : 프로젝트 진입점 클래스 이름 변경

* docs : README.md 헥사고날 아키텍처 항목 추가

* docs(README.md) : 내용 정리 추가

* feat(user.domain) : 도메인 모델 User 추가

* feat(user.domain) : User 의 nickname 프로퍼티 값 객체로 포장

* refactor(User) : 닉네임 변경 함수 이름 수정

* test(user.domain) : 회원 닉네임 변경 테스트 추가

* chore : DB 설정 추가

* feat(user.adapter) : User Entity 구현

* feat : User 닉네임 변경 기능 추가

* refactor(user) : domain 패키지 내부 패키지 구성 추가 및 Entity, Model 이관

* refactor : 사용하지 않는 파일 삭제

* refactor : User 닉네임 변경 기능 컴포넌트 이름 변경

* refactor : User 닉네임 변경 기능 in port 이름 변경

* feat : User Upsert Port 및 Adapter 구현, Service 로직에 추가

* chore : Hexagonal Architecture Process 이미지 추가

* docs(README.md) : 요구사항, 구현 항목 추가

* refactor : 패키지 구성 변경

* feat(user.adapter) : UserMapper 추가 및 적용

* docs(README.md) : 참고자료 및 구현 항목 내용 추가

* refactor : ChangeNicknameRequest, ChangeNicknameResponse 패키지 변경

* refactor : adapter 계층만 application 계층에 의존하도록 통신 객체 추가 및 적용

* refactor : UserEntity @Table 이름 적용

* docs(README.md) : 구현 항목 내용 추가

* refactor : Nickname 입력 유효성 검사 ChangeNicknameRequest 에서 수행하도록 변경

* refactor(user.pojo) : 불필요한 테스트 삭제

* refactor(UserTest) : 오탈자 수정

* build : Kotlin 테스트 라이브러리 추가

* test(user.application) : 닉네임 변경 테스트 추가

* test(user.adapter) : 회원 조회 테스트 추가

* refactor : 불필요한 파일 삭제

* test(user.adapter) : 회원 상태 저장 또는 수정 테스트 추가

* test(user.adapter) : User POJO <-> User Entity 매핑 테스트 추가

* test(user.adapter) : 닉네임 변경 Web Adapter 테스트 추가

* refactor : 불필요한 테스트 파일 삭제

* refactor(user) : 닉네임 변경 테스트 케이스 출력 이름 변경

* refactor : 부적합한 테스트 삭제

놀이터(예제 코드 작성)/learn-with-making-clean-architecture/build.gradle.kts

@@ -25,11 +25,15 @@ dependencies {
 	implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
 	implementation("org.jetbrains.kotlin:kotlin-reflect")
 	implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
+
 	runtimeOnly("com.h2database:h2")
 	runtimeOnly("mysql:mysql-connector-java")
 	runtimeOnly("org.mariadb.jdbc:mariadb-java-client")
+
 	testImplementation("org.springframework.boot:spring-boot-starter-test")
 //	testImplementation("org.springframework.security:spring-security-test")
+	testImplementation("io.mockk:mockk:1.12.3")
+	testImplementation("com.ninja-squad:springmockk:3.1.1")
 }
 
 tasks.withType<KotlinCompile> {

놀이터(예제 코드 작성)/learn-with-making-clean-architecture/src/test/kotlin/com/banjjoknim/cleanarchitecture/user/adapter/in/web/ChangeNicknameWebAdapterTest.kt

@@ -0,0 +1,72 @@
+package com.banjjoknim.cleanarchitecture.user.adapter.`in`.web
+
+import com.banjjoknim.cleanarchitecture.user.application.port.`in`.ChangeNicknameResponseData
+import com.banjjoknim.cleanarchitecture.user.application.port.`in`.ChangeNicknameUseCase
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.ninjasquad.springmockk.MockkBean
+import io.mockk.every
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Nested
+import org.junit.jupiter.api.Test
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest
+import org.springframework.http.MediaType
+import org.springframework.test.web.servlet.MockMvc
+import org.springframework.test.web.servlet.post
+import org.springframework.test.web.servlet.result.MockMvcResultHandlers
+import org.springframework.test.web.servlet.setup.DefaultMockMvcBuilder
+import org.springframework.test.web.servlet.setup.MockMvcBuilders
+import org.springframework.web.context.WebApplicationContext
+import org.springframework.web.filter.CharacterEncodingFilter
+
+@WebMvcTest(ChangeNicknameWebAdapter::class)
+class ChangeNicknameWebAdapterTest {
+
+    @Autowired
+    private lateinit var mockmvc: MockMvc
+
+    @Autowired
+    private lateinit var objectMapper: ObjectMapper
+
+    @MockkBean
+    private lateinit var changeNicknameUseCase: ChangeNicknameUseCase
+
+    @BeforeEach
+    fun setUp(webApplicationContext: WebApplicationContext) {
+        mockmvc = MockMvcBuilders.webAppContextSetup(webApplicationContext)
+            .addFilter<DefaultMockMvcBuilder>(CharacterEncodingFilter("UTF-8"))
+            .alwaysDo<DefaultMockMvcBuilder>(MockMvcResultHandlers.print())
+            .build()
+    }
+
+    @DisplayName("닉네임 변경 테스트 케이스")
+    @Nested
+    inner class ChangeNicknameTestCases {
+        @Test
+        fun `닉네임을 변경한다`() {
+            every { changeNicknameUseCase.changeNickname(any()) } returns ChangeNicknameResponseData(1L)
+            val request = ChangeNicknameRequest(1L, "banjjoknim")
+
+            mockmvc.post("/users") {
+                contentType = MediaType.APPLICATION_JSON
+                content = objectMapper.writeValueAsString(request)
+            }.andExpect {
+                content { json("""{"userId":1}""") }
+                status { isOk() }
+            }
+        }
+
+        @Test
+        fun `잘못된 닉네임 변경 요청에 BadRequest 응답을 반환한다`() {
+            val request = ChangeNicknameRequest(1L, "banjjoknim!!")
+
+            mockmvc.post("/users") {
+                contentType = MediaType.APPLICATION_JSON
+                content = objectMapper.writeValueAsString(request)
+            }.andExpect {
+                status { isBadRequest() }
+            }
+        }
+    }
+}

놀이터(예제 코드 작성)/learn-with-making-clean-architecture/src/test/kotlin/com/banjjoknim/cleanarchitecture/user/adapter/out/persistence/LoadUserPersistenceAdapterTest.kt

@@ -0,0 +1,43 @@
+package com.banjjoknim.cleanarchitecture.user.adapter.out.persistence
+
+import com.banjjoknim.cleanarchitecture.user.pojo.Nickname
+import org.assertj.core.api.Assertions
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Nested
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.assertThrows
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest
+import org.springframework.context.annotation.Import
+import org.springframework.test.context.jdbc.Sql
+
+@DataJpaTest
+@Import(value = [UserMapper::class, LoadUserPersistenceAdapter::class])
+class LoadUserPersistenceAdapterTest {
+
+    @Autowired
+    private lateinit var loadUserPersistenceAdapter: LoadUserPersistenceAdapter
+
+    @DisplayName("회원 조회 테스트 케이스")
+    @Nested
+    inner class LoadUserTestCases {
+        @Sql(statements = ["INSERT INTO USER VALUES (1, 'old')"])
+        @Test
+        fun `회원이 존재하지 않을 경우 예외가 발생한다`() {
+            assertThrows<NoSuchElementException>("존재하지 않는 회원입니다. userId: 100") {
+                loadUserPersistenceAdapter.loadUser(
+                    100L
+                )
+            }
+        }
+
+        @Sql(statements = ["INSERT INTO USER VALUES (1, 'old')"])
+        @Test
+        fun `회원이 존재할 경우 회원을 조회할 수 있다`() {
+            val user = loadUserPersistenceAdapter.loadUser(1L)
+
+            Assertions.assertThat(user.id).isEqualTo(1)
+            Assertions.assertThat(user.nickname).isEqualTo(Nickname("old"))
+        }
+    }
+}

놀이터(예제 코드 작성)/learn-with-making-clean-architecture/src/test/kotlin/com/banjjoknim/cleanarchitecture/user/adapter/out/persistence/UpsertUserPersistenceAdapterTest.kt

@@ -0,0 +1,39 @@
+package com.banjjoknim.cleanarchitecture.user.adapter.out.persistence
+
+import com.banjjoknim.cleanarchitecture.user.pojo.Nickname
+import com.banjjoknim.cleanarchitecture.user.pojo.User
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Nested
+import org.junit.jupiter.api.Test
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest
+import org.springframework.context.annotation.Import
+import org.springframework.data.repository.findByIdOrNull
+import org.springframework.test.context.jdbc.Sql
+
+@DataJpaTest
+@Import(value = [UserMapper::class, UpsertUserPersistenceAdapter::class])
+class UpsertUserPersistenceAdapterTest {
+
+    @Autowired
+    private lateinit var upsertUserPersistenceAdapter: UpsertUserPersistenceAdapter
+
+    @Autowired
+    private lateinit var userEntityRepository: UserEntityRepository
+
+    @DisplayName("회원 상태 저장 및 수정 테스트 케이스")
+    @Nested
+    inner class UpsertUserTestCases {
+        @Sql(statements = ["INSERT INTO USER VALUES (1, 'old')"])
+        @Test
+        fun `회원 상태를 저장하거나 수정한다`() {
+            val updatedUser = User(1L, Nickname("new"))
+
+            upsertUserPersistenceAdapter.upsertUser(updatedUser)
+
+            val userEntity = userEntityRepository.findByIdOrNull(1L)
+            assertThat(userEntity?.nickname).isEqualTo(NicknameColumn("new"))
+        }
+    }
+}

놀이터(예제 코드 작성)/learn-with-making-clean-architecture/src/test/kotlin/com/banjjoknim/cleanarchitecture/user/adapter/out/persistence/UserMapperTest.kt

@@ -0,0 +1,41 @@
+package com.banjjoknim.cleanarchitecture.user.adapter.out.persistence
+
+import com.banjjoknim.cleanarchitecture.user.pojo.Nickname
+import com.banjjoknim.cleanarchitecture.user.pojo.User
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Nested
+import org.junit.jupiter.api.Test
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.context.SpringBootTest
+
+@SpringBootTest(classes = [UserMapper::class])
+class UserMapperTest {
+
+    @Autowired
+    private lateinit var userMapper: UserMapper
+
+    @DisplayName("User POJO <-> User Entity 매핑 테스트 케이스")
+    @Nested
+    inner class UserMapperTestCases {
+        @Test
+        fun `User POJO 를 User Entity 로 변환한다`() {
+            val user = User(1L, Nickname("banjjoknim"))
+
+            val userEntity = userMapper.mapToDomainEntity(user)
+
+            assertThat(userEntity.id).isEqualTo(1)
+            assertThat(userEntity.nickname).isEqualTo(NicknameColumn("banjjoknim"))
+        }
+
+        @Test
+        fun `User Entity 를 User POJO 로 변환한다`() {
+            val userEntity = UserEntity(1L, NicknameColumn("banjjoknim"))
+
+            val user = userMapper.mapToDomainModel(userEntity)
+
+            assertThat(user.id).isEqualTo(1)
+            assertThat(user.nickname).isEqualTo(Nickname("banjjoknim"))
+        }
+    }
+}

놀이터(예제 코드 작성)/learn-with-making-clean-architecture/src/test/kotlin/com/banjjoknim/cleanarchitecture/user/application/service/ChangeNicknameServiceTest.kt

@@ -0,0 +1,46 @@
+package com.banjjoknim.cleanarchitecture.user.application.service
+
+import com.banjjoknim.cleanarchitecture.user.application.port.`in`.ChangeNicknameRequestData
+import com.banjjoknim.cleanarchitecture.user.application.port.out.LoadUserPersistencePort
+import com.banjjoknim.cleanarchitecture.user.application.port.out.UpsertUserPersistencePort
+import com.banjjoknim.cleanarchitecture.user.pojo.Nickname
+import com.banjjoknim.cleanarchitecture.user.pojo.User
+import io.mockk.Runs
+import io.mockk.every
+import io.mockk.just
+import io.mockk.mockk
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Nested
+import org.junit.jupiter.api.Test
+
+class ChangeNicknameServiceTest {
+
+    private val loadUserPersistencePort = mockk<LoadUserPersistencePort>()
+    private val upsertUserPersistencePort = mockk<UpsertUserPersistencePort>()
+    private val changeNicknameService = ChangeNicknameService(loadUserPersistencePort, upsertUserPersistencePort)
+
+    @DisplayName("닉네임 변경 테스트 케이스")
+    @Nested
+    inner class ChangeNicknameTestCases {
+
+        private lateinit var testUser: User
+        private val testChangeNicknameRequestData = ChangeNicknameRequestData(1L, "new")
+
+        @BeforeEach
+        fun setUp() {
+            testUser = User(1L, Nickname("old"))
+        }
+
+        @Test
+        fun `닉네임을 변경한다`() {
+            every { loadUserPersistencePort.loadUser(any()) } returns testUser
+            every { upsertUserPersistencePort.upsertUser(any()) } just Runs
+
+            changeNicknameService.changeNickname(testChangeNicknameRequestData)
+
+            assertThat(testUser.nickname).isEqualTo(Nickname("new"))
+        }
+    }
+}

놀이터(예제 코드 작성)/learn-with-making-clean-architecture/src/test/kotlin/com/banjjoknim/cleanarchitecture/user/pojo/NicknameTest.kt

@@ -1,24 +0,0 @@
-package com.banjjoknim.cleanarchitecture.user.pojo
-
-import org.junit.jupiter.api.DisplayName
-import org.junit.jupiter.api.Nested
-import org.junit.jupiter.api.Test
-import org.junit.jupiter.api.assertDoesNotThrow
-import org.junit.jupiter.api.assertThrows
-
-class NicknameTest {
-
-    @DisplayName("닉네임 생성 테스트")
-    @Nested
-    inner class ChangeNicknameTestCases {
-        @Test
-        fun `10글자 이내이면 닉네임을 생성할 수 있다`() {
-            assertDoesNotThrow { Nickname("banjjoknim") }
-        }
-
-        @Test
-        fun `10글자가 넘으면 닉네임을 생성할 경우 예외가 발생한다`() {
-            assertThrows<IllegalArgumentException> { Nickname("i'm banjjoknim") }
-        }
-    }
-}

놀이터(예제 코드 작성)/learn-with-making-clean-architecture/src/test/kotlin/com/banjjoknim/cleanarchitecture/user/pojo/UserTest.kt

@@ -7,7 +7,8 @@ import org.junit.jupiter.api.Test
 
 class UserTest {
 
-    @DisplayName("회원 이름 변경 테스트 케이스")
+
+    @DisplayName("회원 닉네임 변경 테스트 케이스")
     @Nested
     inner class ChangeNicknameTestCases {
         @Test

놀이터(예제 코드 작성)/learn-with-making-clean-architecture/src/test/kotlin/com/banjjoknim/playground/LearnWithMakingCleanArchitectureApplicationTests.kt

@@ -1,13 +0,0 @@
-package com.banjjoknim.playground
-
-import org.junit.jupiter.api.Test
-import org.springframework.boot.test.context.SpringBootTest
-
-@SpringBootTest
-class LearnWithMakingCleanArchitectureApplicationTests {
-
-	@Test
-	fun contextLoads() {
-	}
-
-}

놀이터(예제 코드 작성)/spring-multi-module/.gitignore

@@ -0,0 +1,37 @@
+HELP.md
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/

놀이터(예제 코드 작성)/spring-multi-module/build.gradle.kts

@@ -0,0 +1,37 @@
+plugins {
+    id("org.springframework.boot") version "2.6.7" apply false
+    id("io.spring.dependency-management") version "1.0.11.RELEASE" apply false
+    kotlin("jvm") version "1.6.21" apply false
+    kotlin("plugin.spring") version "1.6.21" apply false
+    kotlin("plugin.jpa") version "1.6.21" apply false
+}
+
+allprojects { // 모든 프로젝트 모듈에 아래의 사항을 적용한다.
+    group = "com.banjjoknim"
+    version = "0.0.1-SNAPSHOT"
+
+    tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile> {
+        kotlinOptions {
+            freeCompilerArgs = listOf("-Xjsr305=strict")
+            jvmTarget = "11"
+        }
+    }
+
+    tasks.withType<Test> {
+        useJUnitPlatform()
+    }
+}
+
+subprojects {
+    repositories {
+        mavenCentral()
+    }
+
+    apply { // subprojects, 서브 모듈들에 아래의 플러그인들을 적용한다.
+        plugin("org.springframework.boot")
+        plugin("io.spring.dependency-management")
+    }
+}
+
+dependencies {
+}

놀이터(예제 코드 작성)/spring-multi-module/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4.1-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

놀이터(예제 코드 작성)/spring-multi-module/gradlew

@@ -0,0 +1,234 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

놀이터(예제 코드 작성)/spring-multi-module/gradlew.bat

@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

놀이터(예제 코드 작성)/spring-multi-module/module-api/build.gradle.kts

@@ -0,0 +1,31 @@
+plugins {
+    /**
+     * build.gradle.kts(springmultimodule) 의 subprojects 항목에서 아래의 플러그인을 적용해주고 있으므로 주석처리.
+     *
+     * id("org.springframework.boot") version "2.6.7"
+     * id("io.spring.dependency-management") version "1.0.11.RELEASE"
+     */
+    kotlin("jvm") version "1.6.21"
+    kotlin("plugin.spring") version "1.6.21"
+}
+
+group = "com.banjjoknim"
+version = "0.0.1-SNAPSHOT"
+
+java.sourceCompatibility = JavaVersion.VERSION_11
+
+dependencies {
+    implementation(project(":module-domain"))
+
+    implementation("org.springframework.boot:spring-boot-starter-validation")
+    implementation("org.springframework.boot:spring-boot-starter-web")
+    implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
+    implementation("org.jetbrains.kotlin:kotlin-reflect")
+    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
+    runtimeOnly("com.h2database:h2")
+    runtimeOnly("mysql:mysql-connector-java")
+    runtimeOnly("org.mariadb.jdbc:mariadb-java-client")
+    testImplementation("org.springframework.boot:spring-boot-starter-test")
+    testImplementation("io.mockk:mockk:1.12.3")
+    testImplementation("com.ninja-squad:springmockk:3.1.1")
+}

놀이터(예제 코드 작성)/spring-multi-module/module-api/src/main/kotlin/com/banjjoknim/springmultimodule/SpringMultiModuleApplication.kt

@@ -1,11 +1,11 @@
-package com.banjjoknim.playground
+package com.banjjoknim.springmultimodule
 
 import org.springframework.boot.autoconfigure.SpringBootApplication
 import org.springframework.boot.runApplication
 
 @SpringBootApplication
-class LearnWithMakingCleanArchitectureApplication
+class SpringMultiModuleApplication
 
 fun main(args: Array<String>) {
-	runApplication<LearnWithMakingCleanArchitectureApplication>(*args)
+    runApplication<SpringMultiModuleApplication>(*args)
 }

놀이터(예제 코드 작성)/spring-multi-module/module-api/src/main/kotlin/com/banjjoknim/springmultimodule/user/adapter/register/UserRegisterPersistenceAdapter.kt

@@ -0,0 +1,15 @@
+package com.banjjoknim.springmultimodule.user.adapter.register
+
+import com.banjjoknim.springmultimodule.user.User
+import com.banjjoknim.springmultimodule.user.UserRepository
+import com.banjjoknim.springmultimodule.user.application.register.UserRegisterPersistencePort
+import org.springframework.stereotype.Repository
+
+@Repository
+class UserRegisterPersistenceAdapter(
+    private val userRepository: UserRepository
+) : UserRegisterPersistencePort {
+    override fun registerUser(user: User): User {
+        return userRepository.save(user)
+    }
+}

놀이터(예제 코드 작성)/spring-multi-module/module-api/src/main/kotlin/com/banjjoknim/springmultimodule/user/adapter/register/UserRegisterRequest.kt

@@ -0,0 +1,13 @@
+package com.banjjoknim.springmultimodule.user.adapter.register
+
+import com.banjjoknim.springmultimodule.user.application.register.UserRegisterRequestData
+import javax.validation.constraints.NotBlank
+
+data class UserRegisterRequest(
+    @NotBlank
+    val name: String = ""
+) {
+    fun toData(): UserRegisterRequestData {
+        return UserRegisterRequestData(name)
+    }
+}

놀이터(예제 코드 작성)/spring-multi-module/module-api/src/main/kotlin/com/banjjoknim/springmultimodule/user/adapter/register/UserRegisterResponse.kt

@@ -0,0 +1,11 @@
+package com.banjjoknim.springmultimodule.user.adapter.register
+
+import com.banjjoknim.springmultimodule.user.application.register.UserRegisterResponseData
+
+data class UserRegisterResponse(
+    val userId: Long
+) {
+    constructor(responseData: UserRegisterResponseData) : this(
+        userId = responseData.userId
+    )
+}

놀이터(예제 코드 작성)/spring-multi-module/module-api/src/main/kotlin/com/banjjoknim/springmultimodule/user/adapter/register/UserRegisterWebAdapter.kt

@@ -0,0 +1,22 @@
+package com.banjjoknim.springmultimodule.user.adapter.register
+
+import com.banjjoknim.springmultimodule.user.application.register.UserRegisterUseCase
+import org.springframework.http.ResponseEntity
+import org.springframework.web.bind.annotation.PostMapping
+import org.springframework.web.bind.annotation.RequestBody
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RestController
+import javax.validation.Valid
+
+@RequestMapping("/users")
+@RestController
+class UserRegisterWebAdapter(
+    private val userRegisterUseCase: UserRegisterUseCase
+) {
+    @PostMapping("")
+    fun registerUser(@RequestBody @Valid userRegisterRequest: UserRegisterRequest): ResponseEntity<UserRegisterResponse> {
+        val requestData = userRegisterRequest.toData()
+        val responseData = userRegisterUseCase.registerUser(requestData)
+        return ResponseEntity.ok(UserRegisterResponse(responseData))
+    }
+}

놀이터(예제 코드 작성)/spring-multi-module/module-api/src/main/kotlin/com/banjjoknim/springmultimodule/user/application/register/UserRegisterPersistencePort.kt

@@ -0,0 +1,7 @@
+package com.banjjoknim.springmultimodule.user.application.register
+
+import com.banjjoknim.springmultimodule.user.User
+
+interface UserRegisterPersistencePort {
+    fun registerUser(user: User): User
+}

놀이터(예제 코드 작성)/spring-multi-module/module-api/src/main/kotlin/com/banjjoknim/springmultimodule/user/application/register/UserRegisterRequestData.kt

@@ -0,0 +1,3 @@
+package com.banjjoknim.springmultimodule.user.application.register
+
+data class UserRegisterRequestData(val name: String)

놀이터(예제 코드 작성)/spring-multi-module/module-api/src/main/kotlin/com/banjjoknim/springmultimodule/user/application/register/UserRegisterResponseData.kt

@@ -0,0 +1,9 @@
+package com.banjjoknim.springmultimodule.user.application.register
+
+import com.banjjoknim.springmultimodule.user.User
+
+data class UserRegisterResponseData(val userId: Long) {
+    constructor(user: User) : this(
+        userId = user.id
+    )
+}

놀이터(예제 코드 작성)/spring-multi-module/module-api/src/main/kotlin/com/banjjoknim/springmultimodule/user/application/register/UserRegisterService.kt

@@ -0,0 +1,17 @@
+package com.banjjoknim.springmultimodule.user.application.register
+
+import com.banjjoknim.springmultimodule.user.User
+import org.springframework.stereotype.Service
+import org.springframework.transaction.annotation.Transactional
+
+@Service
+class UserRegisterService(
+    private val userRegisterPersistencePort: UserRegisterPersistencePort
+) : UserRegisterUseCase {
+    @Transactional
+    override fun registerUser(requestData: UserRegisterRequestData): UserRegisterResponseData {
+        val newUser = User(name = requestData.name)
+        val user = userRegisterPersistencePort.registerUser(newUser)
+        return UserRegisterResponseData(user)
+    }
+}

놀이터(예제 코드 작성)/spring-multi-module/module-api/src/main/kotlin/com/banjjoknim/springmultimodule/user/application/register/UserRegisterUseCase.kt

@@ -0,0 +1,5 @@
+package com.banjjoknim.springmultimodule.user.application.register
+
+interface UserRegisterUseCase {
+    fun registerUser(requestData: UserRegisterRequestData): UserRegisterResponseData
+}

놀이터(예제 코드 작성)/spring-multi-module/module-api/src/main/resources/application.yml

@@ -0,0 +1,16 @@
+spring:
+  datasource:
+    url: jdbc:h2:mem:testdb;MODE=MySQL;
+    driver-class-name: org.h2.Driver
+    username: sa
+    password:
+  jpa:
+    show-sql: true
+    hibernate:
+      ddl-auto: create-drop
+      naming:
+        physical-strategy: org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl
+        implicit-strategy: org.hibernate.boot.model.naming.ImplicitNamingStrategyLegacyJpaImpl
+  h2:
+    console:
+      enabled: true

놀이터(예제 코드 작성)/spring-multi-module/module-api/src/test/kotlin/com/banjjoknim/springmultimodule/SpringMultiModuleApplicationTest.kt

@@ -0,0 +1,12 @@
+package com.banjjoknim.springmultimodule
+
+import org.junit.jupiter.api.Test
+import org.springframework.boot.test.context.SpringBootTest
+
+@SpringBootTest
+class SpringMultiModuleApplicationTest {
+
+    @Test
+    fun contextLoads() {
+    }
+}

놀이터(예제 코드 작성)/spring-multi-module/module-api/src/test/kotlin/com/banjjoknim/springmultimodule/user/adapter/register/UserRegisterPersistenceAdapterTest.kt

@@ -0,0 +1,31 @@
+package com.banjjoknim.springmultimodule.user.adapter.register
+
+import com.banjjoknim.springmultimodule.user.User
+import com.banjjoknim.springmultimodule.user.UserRepository
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.jupiter.api.Test
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest
+import org.springframework.context.annotation.Import
+import org.springframework.data.repository.findByIdOrNull
+
+@DataJpaTest
+@Import(value = [UserRegisterPersistenceAdapter::class])
+class UserRegisterPersistenceAdapterTest {
+
+    @Autowired
+    private lateinit var userRegisterPersistenceAdapter: UserRegisterPersistenceAdapter
+
+    @Autowired
+    private lateinit var userRepository: UserRepository
+
+    @Test
+    fun `회원을 등록한다`() {
+        userRegisterPersistenceAdapter.registerUser(User("banjjoknim"))
+
+        val user = userRepository.findByIdOrNull(1)
+
+        assertThat(user).isNotNull
+        assertThat(user?.name).isEqualTo("banjjoknim")
+    }
+}

놀이터(예제 코드 작성)/spring-multi-module/module-api/src/test/kotlin/com/banjjoknim/springmultimodule/user/adapter/register/UserRegisterWebAdapterTest.kt

@@ -0,0 +1,54 @@
+package com.banjjoknim.springmultimodule.user.adapter.register
+
+import com.banjjoknim.springmultimodule.user.application.register.UserRegisterResponseData
+import com.banjjoknim.springmultimodule.user.application.register.UserRegisterUseCase
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.ninjasquad.springmockk.MockkBean
+import io.mockk.every
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.Test
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest
+import org.springframework.http.MediaType
+import org.springframework.test.web.servlet.MockMvc
+import org.springframework.test.web.servlet.post
+import org.springframework.test.web.servlet.result.MockMvcResultHandlers
+import org.springframework.test.web.servlet.setup.DefaultMockMvcBuilder
+import org.springframework.test.web.servlet.setup.MockMvcBuilders
+import org.springframework.web.context.WebApplicationContext
+import org.springframework.web.filter.CharacterEncodingFilter
+
+@WebMvcTest(controllers = [UserRegisterWebAdapter::class])
+class UserRegisterWebAdapterTest {
+
+    @Autowired
+    private lateinit var mockMvc: MockMvc
+
+    @Autowired
+    private lateinit var objectMapper: ObjectMapper
+
+    @MockkBean
+    private lateinit var userRegisterUseCase: UserRegisterUseCase
+
+    @BeforeEach
+    fun setUp(webApplicationContext: WebApplicationContext) {
+        mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext)
+            .addFilter<DefaultMockMvcBuilder>(CharacterEncodingFilter("UTF-8"))
+            .alwaysDo<DefaultMockMvcBuilder>(MockMvcResultHandlers.print())
+            .build()
+    }
+
+    @Test
+    fun `회원을 등록한다`() {
+        every { userRegisterUseCase.registerUser(any()) } returns UserRegisterResponseData(1)
+        val request = UserRegisterRequest("banjjoknim")
+
+        mockMvc.post("/users") {
+            contentType = MediaType.APPLICATION_JSON
+            content = objectMapper.writeValueAsString(request)
+        }.andExpect {
+            content { json("""{"userId":1}""") }
+            status { isOk() }
+        }
+    }
+}

놀이터(예제 코드 작성)/spring-multi-module/module-api/src/test/kotlin/com/banjjoknim/springmultimodule/user/application/register/UserRegisterServiceTest.kt

@@ -0,0 +1,23 @@
+package com.banjjoknim.springmultimodule.user.application.register
+
+import com.banjjoknim.springmultimodule.user.User
+import io.mockk.every
+import io.mockk.mockk
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.jupiter.api.Test
+
+class UserRegisterServiceTest {
+
+    private val userRegisterPersistencePort = mockk<UserRegisterPersistencePort>()
+    private val userRegisterService = UserRegisterService(userRegisterPersistencePort)
+
+    @Test
+    fun `회원을 등록한다`() {
+        every { userRegisterPersistencePort.registerUser(any()) } returns User("banjjoknim", 1)
+        val requestData = UserRegisterRequestData("banjjoknim")
+
+        val responseData = userRegisterService.registerUser(requestData)
+
+        assertThat(responseData).isEqualTo(UserRegisterResponseData(1))
+    }
+}

놀이터(예제 코드 작성)/spring-multi-module/module-domain/build.gradle.kts

@@ -0,0 +1,17 @@
+plugins {
+    /**
+     * build.gradle.kts(springmultimodule) 의 subprojects 항목에서 아래의 플러그인을 적용해주고 있으므로 주석처리.
+     *
+     * id("org.springframework.boot") version "2.6.7"
+     * id("io.spring.dependency-management") version "1.0.11.RELEASE"
+     */
+    kotlin("jvm") version "1.6.21"
+    kotlin("plugin.jpa") version "1.6.21"
+}
+
+group = "com.banjjoknim"
+version = "0.0.1-SNAPSHOT"
+
+dependencies {
+    implementation("org.springframework.boot:spring-boot-starter-data-jpa")
+}

놀이터(예제 코드 작성)/spring-multi-module/module-domain/src/main/kotlin/com/banjjoknim/springmultimodule/user/User.kt

@@ -0,0 +1,16 @@
+package com.banjjoknim.springmultimodule.user
+
+import javax.persistence.Column
+import javax.persistence.Entity
+import javax.persistence.GeneratedValue
+import javax.persistence.GenerationType
+import javax.persistence.Id
+
+@Entity
+class User(
+    @Column(name = "name")
+    var name: String,
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    val id: Long = 0
+)

놀이터(예제 코드 작성)/spring-multi-module/module-domain/src/main/kotlin/com/banjjoknim/springmultimodule/user/UserRepository.kt

@@ -0,0 +1,6 @@
+package com.banjjoknim.springmultimodule.user
+
+import org.springframework.data.jpa.repository.JpaRepository
+
+interface UserRepository : JpaRepository<User, Long> {
+}

놀이터(예제 코드 작성)/spring-multi-module/settings.gradle.kts

@@ -0,0 +1,3 @@
+rootProject.name = "springmultimodule"
+include("module-api")
+include("module-domain")