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Merge pull request #172 from SWU-Elixir/test/157-recipe
test: RecommendationService 테스트 코드 작성
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‎src/test/java/BE_Elixir/Elixir/domain/recommendation/service/RecommendationServiceTest.java‎

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package BE_Elixir.Elixir.domain.recommendation.service;
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import BE_Elixir.Elixir.domain.ingredient.entity.Ingredient;
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import BE_Elixir.Elixir.domain.ingredient.repository.IngredientRepository;
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import BE_Elixir.Elixir.domain.member.entity.Member;
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import BE_Elixir.Elixir.domain.recipe.dto.MaterialDTO;
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import BE_Elixir.Elixir.domain.recipe.dto.request.RecipeRequestDTO;
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import BE_Elixir.Elixir.domain.recipe.entity.Recipe;
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import BE_Elixir.Elixir.domain.recipe.entity.RecipeIngredient;
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import BE_Elixir.Elixir.domain.recipe.repository.RecipeEventRepository;
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import BE_Elixir.Elixir.domain.recipe.repository.RecipeRepository;
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import BE_Elixir.Elixir.domain.recommendation.dto.RecommendationResponseDTO;
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import BE_Elixir.Elixir.global.enums.CategorySlowAging;
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import BE_Elixir.Elixir.global.enums.CategoryType;
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import BE_Elixir.Elixir.global.enums.Difficulty;
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import BE_Elixir.Elixir.global.redis.RedisRecipeService;
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import org.junit.jupiter.api.BeforeEach;
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import org.junit.jupiter.api.DisplayName;
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import org.junit.jupiter.api.Nested;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.api.extension.ExtendWith;
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import org.mockito.InjectMocks;
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import org.mockito.Mock;
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import org.mockito.Mockito;
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import org.mockito.junit.jupiter.MockitoExtension;
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import org.springframework.data.domain.PageRequest;
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import org.springframework.data.domain.Pageable;
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import java.time.Duration;
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import java.util.*;
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import static org.assertj.core.api.Assertions.*;
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import static org.mockito.ArgumentMatchers.*;
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import static org.mockito.BDDMockito.*;
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@ExtendWith(MockitoExtension.class)
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@DisplayName("RecommendationService 테스트")
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class RecommendationServiceTest {
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@InjectMocks
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RecommendationService recommendationService;
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@Mock RecipeRepository recipeRepository;
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@Mock RedisRecipeService redisRecipeService;
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@Mock RecipeEventRepository recipeEventRepository;
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@Mock IngredientRepository ingredientRepository;
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private RecipeRequestDTO requestDTO;
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private Recipe recipe;
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private Member member;
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private Pageable pageable;
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@BeforeEach
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void setUp() {
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member = Member.builder()
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.id(1L)
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.email("test@example.com")
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.nickname("testUser")
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.build();
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member.setMealStyle_채소위주(true);
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member.setAllergy_밀(true);
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member.setRecipeStyle_한식(true);
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member.setReason_항산화강화(true);
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pageable = PageRequest.of(0, 10);
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requestDTO = createSampleRecipeRequestDTO();
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recipe = Recipe.from(requestDTO, member);
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Ingredient ingredient = new Ingredient();
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ingredient.setId(10L);
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ingredient.setName("감자");
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RecipeIngredient recipeIngredient = new RecipeIngredient(recipe, ingredient);
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recipe.setIngredientTags(List.of(recipeIngredient));
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}
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private RecipeRequestDTO createSampleRecipeRequestDTO() {
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RecipeRequestDTO dto = new RecipeRequestDTO();
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dto.setTitle("감자조림");
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dto.setDescription("감자조림에 대한 설명");
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dto.setCategoryType(CategoryType.한식);
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dto.setCategorySlowAging(CategorySlowAging.항산화강화);
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dto.setDifficulty(Difficulty.보통);
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dto.setTimeHours(1);
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dto.setTimeMinutes(20);
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dto.setIngredientTagIds(List.of(10L));
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MaterialDTO ingredient = new MaterialDTO("감자", "2", "개");
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MaterialDTO seasoning1 = new MaterialDTO("간장", "2", "큰술");
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MaterialDTO seasoning2 = new MaterialDTO("설탕", "1", "큰술");
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dto.setIngredients(List.of(ingredient));
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dto.setSeasonings(List.of(seasoning1, seasoning2));
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dto.setStepDescriptions(List.of("1단계"));
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dto.setTips("팁");
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dto.setAllergies(List.of("우유", "밀"));
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return dto;
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}
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@Nested
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@DisplayName("사용자 맞춤형 레시피 추천 테스트")
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class GetRecommendationsForUserTests {
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@Test
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@DisplayName("성공: 캐시에서 추천 결과가 존재하면 캐시 반환")
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void returnsCachedRecommendations() {
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// given
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List<RecommendationResponseDTO> cached = List.of(
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new RecommendationResponseDTO(new Recipe(), false)
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);
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given(redisRecipeService.getCachedRecommendations(member.getId())).willReturn(cached);
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// when
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List<RecommendationResponseDTO> result = recommendationService.getRecommendationsForUser(member);
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// then
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assertThat(result).isEqualTo(cached);
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then(redisRecipeService).should(times(1)).getCachedRecommendations(member.getId());
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then(recipeRepository).should(never()).findAll();
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}
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@Test
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@DisplayName("성공: 캐시 없고, 필터링 후 추천 결과 반환 및 캐싱")
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void returnsFilteredRecommendationsAndCaches() {
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// given
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given(redisRecipeService.getCachedRecommendations(member.getId())).willReturn(null);
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Recipe recipe1 = Mockito.mock(Recipe.class);
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given(recipe1.getId()).willReturn(10L);
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given(recipe1.getAllergyList()).willReturn(List.of("우유"));
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given(recipe1.getIngredientTags()).willReturn(List.of());
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given(recipe1.getCategoryType()).willReturn(CategoryType.한식);
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given(recipe1.getCategorySlowAging()).willReturn(CategorySlowAging.항산화강화);
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List<Recipe> allRecipes = List.of(recipe1);
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given(recipeRepository.findAll()).willReturn(allRecipes);
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given(recipeEventRepository.existsByRecipeIdAndMemberIdAndScrapFlagTrue(10L, member.getId())).willReturn(true);
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// when
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List<RecommendationResponseDTO> result = recommendationService.getRecommendationsForUser(member);
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// then
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assertThat(result).hasSize(1);
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assertThat(result.get(0).getScrappedByCurrentUser()).isTrue();
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then(redisRecipeService).should().cacheRecommendations(eq(member.getId()), anyList(), eq(Duration.ofHours(1)));
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}
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@Test
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@DisplayName("성공: 필터링된 결과 없으면 전체 중 랜덤 3개 추천")
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void returnsRandomWhenNoFiltered() {
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// given
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given(redisRecipeService.getCachedRecommendations(member.getId())).willReturn(null);
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Recipe recipe1 = new Recipe();
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recipe1.setCategoryType(CategoryType.한식);
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recipe1.setCategorySlowAging(CategorySlowAging.항산화강화);
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recipe1.setIngredientTags(new ArrayList<>());
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Recipe recipe2 = new Recipe();
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recipe2.setCategoryType(CategoryType.중식);
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recipe2.setCategorySlowAging(CategorySlowAging.항산화강화);
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recipe2.setIngredientTags(new ArrayList<>());
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Recipe recipe3 = new Recipe();
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recipe3.setCategoryType(CategoryType.디저트);
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recipe3.setCategorySlowAging(CategorySlowAging.혈당조절);
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recipe3.setIngredientTags(new ArrayList<>());
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Recipe recipe4 = new Recipe();
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recipe4.setCategoryType(CategoryType.양식);
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recipe4.setCategorySlowAging(CategorySlowAging.혈당조절);
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recipe4.setIngredientTags(new ArrayList<>());
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List<Recipe> allRecipes = List.of(recipe1, recipe2, recipe3, recipe4);
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given(recipeRepository.findAll()).willReturn(allRecipes);
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// when
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List<RecommendationResponseDTO> result = recommendationService.getRecommendationsForUser(member);
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// then
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assertThat(result).hasSizeLessThanOrEqualTo(3);
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then(redisRecipeService).should().cacheRecommendations(eq(member.getId()), anyList(), eq(Duration.ofHours(1)));
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}
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@Test
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@DisplayName("예외: 캐시 조회 후 결과가 null 이거나 비어있으면 빈 리스트 반환")
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void getRecommendedKeywords_ReturnsEmptyWhenCacheEmpty() {
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// given
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given(redisRecipeService.getCachedRecommendations(member.getId())).willReturn(null);
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// when
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List<String> keywords = recommendationService.getRecommendedKeywords(member);
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// then
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assertThat(keywords).isEmpty();
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}
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}
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@Nested
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@DisplayName("추천 검색어 조회 테스트")
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class GetRecommendedKeywordsTests {
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@Test
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@DisplayName("성공: 캐시된 추천 결과가 있고, 키워드 및 식재료 이름 포함 반환")
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void returnsKeywordsFromCachedRecommendations() {
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// given
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RecommendationResponseDTO dto = Mockito.mock(RecommendationResponseDTO.class);
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given(dto.getTitle()).willReturn("감자조림은 맛있다");
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given(dto.getIngredientTagIds()).willReturn(List.of(1L, 2L));
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given(redisRecipeService.getCachedRecommendations(member.getId()))
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.willReturn(List.of(dto));
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Ingredient ing1 = new Ingredient();
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ing1.setName("감자");
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Ingredient ing2 = new Ingredient();
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ing2.setName("고추");
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given(ingredientRepository.findByIdIn(List.of(1L, 2L))).willReturn(List.of(ing1, ing2));
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// when
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List<String> keywords = recommendationService.getRecommendedKeywords(member);
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// then
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assertThat(keywords).contains("감자조림", "맛있다", "감자", "고추");
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assertThat(keywords.size()).isLessThanOrEqualTo(5);
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}
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}
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}

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