[#80] 내가 쓴 글 조회 (#96)

* feat : 내가 쓴 글 조회

* test : 내가 쓴 글 조회

* fix : 내가 쓴 글 생성일자 기준 내림차순

* fix : 내가 쓴 글 생성일자 기준 내림차순

* fix : develop conflict 해결

* feat : 내가 쓴 글 조회

* test : 내가 쓴 글 조회

* fix : 내가 쓴 글 생성일자 기준 내림차순

* develop rebase

* fix : develop conflict 해결

* fix : 내가 쓴 글 정렬 방법 변경, comment에서 isDeleted 필터링 추가

* fix : 테스트 수정

* fix : unit 테스트 삭제

src/main/kotlin/com/example/daitssuapi/domain/main/model/repository/ArticleRepository.kt

@@ -1,6 +1,7 @@
 package com.example.daitssuapi.domain.main.model.repository
 
 import com.example.daitssuapi.domain.main.model.entity.Article
+import com.example.daitssuapi.domain.main.model.entity.User
 import org.springframework.data.domain.Page
 import org.springframework.data.domain.Pageable
 import org.springframework.data.jpa.repository.JpaRepository
@@ -16,4 +17,6 @@ interface ArticleRepository : JpaRepository<Article, Long> {
     fun findAllByCreatedAtIsGreaterThanEqual(
         createdAt: LocalDateTime
     ): List<Article>
+
+    fun findAllByWriterOrderByCreatedAtDesc(writer: User) : List<Article>
 }

src/main/kotlin/com/example/daitssuapi/domain/mypage/controller/MypageController.kt

@@ -0,0 +1,24 @@
+package com.example.daitssuapi.domain.mypage.controller
+
+import com.example.daitssuapi.common.dto.Response
+import com.example.daitssuapi.domain.mypage.dto.response.MyArticleResponse
+import com.example.daitssuapi.domain.mypage.service.MypageService
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.PathVariable
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RestController
+
+
+@RestController
+@RequestMapping("/mypage")
+class MypageController(
+    private val mypageService: MypageService
+) {
+
+    @GetMapping("/{userId}/articles")
+    fun getMyArticle(
+        @PathVariable("userId") userId: Long
+    ) : Response<List<MyArticleResponse>> =
+        Response(data = mypageService.getMyArticle(userId = userId))
+
+}

src/main/kotlin/com/example/daitssuapi/domain/mypage/dto/response/MyArticleResponse.kt

@@ -0,0 +1,12 @@
+package com.example.daitssuapi.domain.mypage.dto.response
+
+import java.time.LocalDateTime
+
+data class MyArticleResponse (
+    val id: Long,
+    val topic: String,
+    val title: String,
+    val content: String,
+    val createdAt: LocalDateTime,
+    val commentSize: Int
+)

src/main/kotlin/com/example/daitssuapi/domain/mypage/service/MypageService.kt

@@ -0,0 +1,35 @@
+package com.example.daitssuapi.domain.mypage.service
+
+import com.example.daitssuapi.common.enums.ErrorCode
+import com.example.daitssuapi.common.exception.DefaultException
+import com.example.daitssuapi.domain.main.model.repository.ArticleRepository
+import com.example.daitssuapi.domain.main.model.repository.CommentRepository
+import com.example.daitssuapi.domain.main.model.repository.UserRepository
+import com.example.daitssuapi.domain.mypage.dto.response.MyArticleResponse
+import org.springframework.data.repository.findByIdOrNull
+import org.springframework.stereotype.Service
+
+@Service
+class MypageService (
+    private val userRepository: UserRepository,
+    private val articleRepository: ArticleRepository,
+    private val commentRepository: CommentRepository,
+){
+
+    fun getMyArticle(userId: Long) : List<MyArticleResponse> {
+        val user = userRepository.findByIdOrNull(userId)
+            ?: throw DefaultException(errorCode = ErrorCode.USER_NOT_FOUND)
+        return articleRepository.findAllByWriterOrderByCreatedAtDesc(user).map {
+            MyArticleResponse(
+                id = it.id,
+                topic = it.topic.value,
+                title = it.title,
+                content = it.content,
+                createdAt = it.createdAt,
+                commentSize = it.comments.count { comment -> !comment.isDeleted }
+            )
+        }
+    }
+
+
+}

src/test/kotlin/com/example/daitssuapi/domain/mypage/controller/MypageControllerTest.kt

@@ -0,0 +1,39 @@
+package com.example.daitssuapi.domain.mypage.controller
+
+import com.example.daitssuapi.utils.ControllerTest
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.test.web.servlet.MockMvc
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*
+import org.springframework.test.web.servlet.result.MockMvcResultMatchers.*
+
+@ControllerTest
+class MypageControllerTest {
+    @Autowired
+    private lateinit var mockMvc: MockMvc
+
+    private val url = "/mypage"
+
+    @Test
+    @DisplayName("게시글이 있는 userId를 이용하여 게시글 조회시 _ 1개 이상의 게시글이 조회된다")
+    fun get_my_articles_with_user_id() {
+        val userId = 4L
+
+        mockMvc.perform(get("$url/$userId/articles"))
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.data").isNotEmpty)
+
+    }
+
+    @Test
+    @DisplayName("게시글이 없는 userId를 이용하여 게시글 조회시 _ 빈 List를 받는다")
+    fun get_my_articles_with_wrong_user_id() {
+        val wrongUserID = 1L
+
+        mockMvc.perform(get("$url/$wrongUserID/articles"))
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.data").isEmpty)
+    }
+
+}

src/test/kotlin/com/example/daitssuapi/domain/mypage/service/MypageServiceTest.kt

@@ -0,0 +1,44 @@
+package com.example.daitssuapi.domain.mypage.service
+
+import com.example.daitssuapi.common.exception.DefaultException
+import com.example.daitssuapi.domain.main.model.repository.ArticleRepository
+import com.example.daitssuapi.domain.main.model.repository.UserRepository
+import com.example.daitssuapi.utils.IntegrationTest
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.assertAll
+import org.junit.jupiter.api.assertThrows
+
+
+@IntegrationTest
+class MypageServiceTest (
+    private val articleRepository: ArticleRepository,
+    private val userRepository: UserRepository,
+    private val mypageService:MypageService
+) {
+
+    @Test
+    @DisplayName("올바른 userId를 받으면 작성한 게시글이 조회된다")
+    fun get_my_articles_with_user_id() {
+        val userId =4L
+        val user = userRepository.findById(userId).get()
+        val articles = articleRepository.findAllByWriterOrderByCreatedAtDesc(user)
+        val findArticles = mypageService.getMyArticle(userId = userId)
+
+        assertAll(
+            { assertThat(findArticles).isNotEmpty },
+            { assertThat(findArticles.size).isEqualTo(articles.size) }
+        )
+    }
+
+    @Test
+    @DisplayName("없는 userId를 받으면 USER_NOT_FOUND 에러가 발생한다")
+    fun get_my_articles_with_wrong_user_id(){
+        val wrongUserId = 999L
+
+        assertThrows<DefaultException> {
+            mypageService.getMyArticle(userId = wrongUserId)
+        }
+    }
+}