[feat] : 챗봇 서비스 단위 테스트 코드를 작성한다

build.gradle

@@ -69,6 +69,9 @@ dependencies {
 
     // S3
     implementation 'org.springframework.cloud:spring-cloud-starter-aws:2.2.6.RELEASE'
+
+    // 비동기 테스트
+    testImplementation 'io.projectreactor:reactor-test'
 }
 
 java {

src/test/java/kusitms/backend/chatbot/application/factory/ClovaRequestFactoryTest.java

@@ -0,0 +1,53 @@
+package kusitms.backend.chatbot.application.factory;
+
+import kusitms.backend.chatbot.application.dto.request.ChatbotRequestDto;
+import kusitms.backend.chatbot.application.dto.request.ClovaRequestDto;
+import kusitms.backend.chatbot.application.dto.request.MessageDto;
+import kusitms.backend.chatbot.domain.enums.Role;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.mockito.Mockito.when;
+
+class ClovaRequestFactoryTest {
+
+    @InjectMocks
+    private ClovaRequestFactory clovaRequestFactory;
+
+    @Mock
+    private MessageFactory messageFactory;
+
+    @BeforeEach
+    void setUp() {
+        MockitoAnnotations.openMocks(this);
+    }
+
+    /**
+     * ClovaRequestFactory의 createClovaRequest 메서드 테스트
+     */
+    @Test
+    void testCreateClovaRequest() {
+        // Given
+        MessageDto systemMessage = new MessageDto(Role.SYSTEM.getRole(), "System message content");
+        when(messageFactory.createSystemMessage()).thenReturn(systemMessage);
+
+        // When
+        ChatbotRequestDto chatbotRequest = clovaRequestFactory.createClovaRequest();
+
+        // Then
+        assertNotNull(chatbotRequest);
+        assertEquals(1, chatbotRequest.getMessages().size());
+        assertEquals(systemMessage, chatbotRequest.getMessages().get(0));
+
+        ClovaRequestDto clovaRequest = (ClovaRequestDto) chatbotRequest;
+        assertEquals(0.8, clovaRequest.topP());
+        assertEquals(0.3, clovaRequest.temperature());
+        assertEquals(256, clovaRequest.maxTokens());
+        assertEquals(5.0, clovaRequest.repeatPenalty());
+    }
+}

src/test/java/kusitms/backend/chatbot/application/factory/MessageFactoryTest.java

@@ -0,0 +1,73 @@
+package kusitms.backend.chatbot.application.factory;
+
+import kusitms.backend.chatbot.application.dto.request.MessageDto;
+import kusitms.backend.chatbot.domain.enums.Role;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.InjectMocks;
+import org.mockito.MockitoAnnotations;
+import org.springframework.test.util.ReflectionTestUtils;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+class MessageFactoryTest {
+
+    @InjectMocks
+    private MessageFactory messageFactory;
+
+    @BeforeEach
+    void setUp() {
+        MockitoAnnotations.openMocks(this);
+        ReflectionTestUtils.setField(messageFactory,
+                "baseballPrompt",
+                "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");
+    }
+
+    /**
+     * 사용자 메시지 생성 테스트
+     */
+    @Test
+    void testCreateUserMessage() {
+        // Given
+        String content = "Hello, user!";
+
+        // When
+        MessageDto message = messageFactory.createUserMessage(content);
+
+        // Then
+        assertNotNull(message);
+        assertEquals(Role.USER.getRole(), message.role());
+        assertEquals(content, message.content());
+    }
+
+    /**
+     * 시스템 메시지 생성 테스트 (Base64 디코딩 확인)
+     */
+    @Test
+    void testCreateSystemMessage() {
+        // When
+        MessageDto message = messageFactory.createSystemMessage();
+
+        // Then
+        assertNotNull(message);
+        assertEquals(Role.SYSTEM.getRole(), message.role());
+    }
+
+    /**
+     * 어시스턴트 메시지 생성 테스트
+     */
+    @Test
+    void testCreateAssistantMessage() {
+        // Given
+        String content = "Hello, assistant!";
+
+        // When
+        MessageDto message = messageFactory.createAssistantMessage(content);
+
+        // Then
+        assertNotNull(message);
+        assertEquals(Role.ASSISTANT.getRole(), message.role());
+        assertEquals(content, message.content());
+    }
+}

src/test/java/kusitms/backend/chatbot/application/service/ChatbotApplicationServiceTest.java

@@ -0,0 +1,96 @@
+package kusitms.backend.chatbot.application.service;
+
+import kusitms.backend.chatbot.application.dto.request.ClovaRequestDto;
+import kusitms.backend.chatbot.application.dto.response.GetClovaChatbotAnswerResponseDto;
+import kusitms.backend.chatbot.application.dto.response.GetGuideChatbotAnswerResponseDto;
+import kusitms.backend.chatbot.application.factory.ClovaRequestFactory;
+import kusitms.backend.chatbot.application.factory.MessageFactory;
+import kusitms.backend.chatbot.domain.service.ChatbotApiClient;
+import kusitms.backend.global.exception.CustomException;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import reactor.core.publisher.Mono;
+import reactor.test.StepVerifier;
+
+import java.util.ArrayList;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.when;
+
+class ChatbotApplicationServiceTest {
+
+    private ChatbotApplicationService service;
+
+    @Mock
+    private ChatbotApiClient chatbotApiClient;
+
+    @Mock
+    private ClovaRequestFactory clovaRequestFactory;
+
+    @Mock
+    private MessageFactory messageFactory;
+
+    @BeforeEach
+    void setUp() {
+        MockitoAnnotations.openMocks(this);
+        service = new ChatbotApplicationService(chatbotApiClient, clovaRequestFactory, messageFactory);
+    }
+
+    /**
+     * Clova 챗봇 응답을 성공적으로 가져오는 테스트
+     */
+    @Test
+    void testGetClovaChatbotAnswer_Success() {
+        // Given
+        String userMessage = "안녕하세요!";
+        ClovaRequestDto requestDto = new ClovaRequestDto(new ArrayList<>(), 0.8, 0.3, 256, 1.2);
+        GetClovaChatbotAnswerResponseDto expectedResponse = GetClovaChatbotAnswerResponseDto.of("안녕하세요!");
+
+        when(clovaRequestFactory.createClovaRequest()).thenReturn(requestDto);
+        when(chatbotApiClient.requestChatbot(any(ClovaRequestDto.class)))
+                .thenReturn(Mono.just("안녕하세요!"));
+
+        // When & Then
+        StepVerifier.create(service.getClovaChatbotAnswer(userMessage))
+                .expectNext(expectedResponse)
+                .verifyComplete();
+    }
+
+    /**
+     * 유효한 카테고리 및 질문 번호로 가이드 챗봇 응답을 성공적으로 가져오는 테스트
+     */
+    @Test
+    void testGetGuideChatbotAnswer_ValidCategory() {
+        // Given
+        String stadiumName = "lg";
+        String categoryName = "stadium";
+        int orderNumber = 1;
+
+        // When
+        GetGuideChatbotAnswerResponseDto response = service.getGuideChatbotAnswer(stadiumName, categoryName, orderNumber);
+
+        // Then
+        assertNotNull(response);
+        assertEquals(null, response.imgUrl());
+    }
+
+    /**
+     * 유효하지 않은 카테고리로 인해 CustomException이 발생하는 테스트
+     */
+    @Test
+    void testGetGuideChatbotAnswer_InvalidCategory() {
+        // Given
+        String stadiumName = "Seoul";
+        String categoryName = "invalid";
+        int orderNumber = 1;
+
+        // When & Then
+        org.junit.jupiter.api.Assertions.assertThrows(CustomException.class, () -> {
+            service.getGuideChatbotAnswer(stadiumName, categoryName, orderNumber);
+        });
+    }
+}

src/test/java/kusitms/backend/chatbot/infra/adapter/ClovaApiClientTest.java

@@ -0,0 +1,117 @@
+package kusitms.backend.chatbot.infra.adapter;
+
+import kusitms.backend.chatbot.application.dto.request.ClovaRequestDto;
+import kusitms.backend.chatbot.status.ChatbotErrorStatus;
+import kusitms.backend.global.exception.CustomException;
+import okhttp3.mockwebserver.MockResponse;
+import okhttp3.mockwebserver.MockWebServer;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.MediaType;
+import org.springframework.web.reactive.function.client.WebClient;
+import reactor.core.publisher.Mono;
+import reactor.test.StepVerifier;
+
+import java.io.IOException;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+class ClovaApiClientTest {
+
+    private MockWebServer mockWebServer;
+    private ClovaApiClient clovaApiClient;
+
+    @BeforeEach
+    void setUp() throws IOException {
+        mockWebServer = new MockWebServer();
+        mockWebServer.start();
+        String baseUrl = mockWebServer.url("/").toString();
+        clovaApiClient = new ClovaApiClient(WebClient.create(baseUrl));
+    }
+
+    @AfterEach
+    void tearDown() throws IOException {
+        mockWebServer.shutdown();
+    }
+
+    /**
+     * 클로바 API 호출 성공 테스트
+     */
+    @Test
+    void testRequestChatbot_Success() {
+        // Given
+        String responseBody = """
+            {
+                "result": {
+                    "message": {
+                        "content": "응답 메시지"
+                    }
+                }
+            }
+        """;
+        mockWebServer.enqueue(new MockResponse()
+                .setResponseCode(200)
+                .setHeader(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)
+                .setBody(responseBody));
+
+        ClovaRequestDto request = new ClovaRequestDto(null, 0.8, 0.3, 256, 1.2);
+
+        // When & Then
+        StepVerifier.create(clovaApiClient.requestChatbot(request))
+                .expectNext("응답 메시지")
+                .verifyComplete();
+    }
+
+    /**
+     * WebClient 통신 오류 발생 테스트
+     */
+    @Test
+    void testRequestChatbot_CommunicationError() {
+        // Given
+        mockWebServer.enqueue(new MockResponse().setResponseCode(500));
+
+        ClovaRequestDto request = new ClovaRequestDto(null, 0.8, 0.3, 256, 1.2);
+
+        // When & Then
+        StepVerifier.create(clovaApiClient.requestChatbot(request))
+                .expectErrorMatches(throwable -> throwable instanceof CustomException
+                        && ((CustomException) throwable).getErrorCode() == ChatbotErrorStatus._CHATBOT_API_COMMUNICATION_ERROR)
+                .verify();
+    }
+
+    /**
+     * 요청 본문 확인 테스트
+     */
+    @Test
+    void testRequestBodyMapping() throws InterruptedException {
+        // Given
+        mockWebServer.enqueue(new MockResponse()
+                .setResponseCode(200)
+                .setHeader(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)
+                .setBody("""
+                    {
+                        "result": {
+                            "message": {
+                                "content": "응답 메시지"
+                            }
+                        }
+                    }
+                """));
+
+        ClovaRequestDto request = new ClovaRequestDto(null, 0.8, 0.3, 256, 1.2);
+
+        // When
+        Mono<String> response = clovaApiClient.requestChatbot(request);
+
+        // Then
+        StepVerifier.create(response)
+                .expectNext("응답 메시지")
+                .verifyComplete();
+
+        // 요청 확인
+        String recordedRequest = mockWebServer.takeRequest().getBody().readUtf8();
+        assertNotNull(recordedRequest);
+    }
+}

src/test/java/kusitms/backend/chatbot/ChatbotControllerTest.java → src/test/java/kusitms/backend/chatbot/presentation/ChatbotControllerTest.java

@@ -1,12 +1,11 @@
-package kusitms.backend.chatbot;
+package kusitms.backend.chatbot.presentation;
 
 import com.epages.restdocs.apispec.MockMvcRestDocumentationWrapper;
 import com.epages.restdocs.apispec.ResourceSnippetParameters;
 import com.epages.restdocs.apispec.Schema;
 import kusitms.backend.chatbot.application.dto.response.GetClovaChatbotAnswerResponseDto;
 import kusitms.backend.chatbot.application.dto.response.GetGuideChatbotAnswerResponseDto;
 import kusitms.backend.chatbot.application.service.ChatbotApplicationService;
-import kusitms.backend.chatbot.presentation.ChatbotController;
 import kusitms.backend.configuration.ControllerTestConfig;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;