test : #168 도서별 리뷰 목록 조회 api controller 단위 테스트 작성

src/test/java/com/t3t/bookstoreapi/review/controller/ReviewControllerUnitTest.java

@@ -0,0 +1,76 @@
+package com.t3t.bookstoreapi.review.controller;
+
+import com.t3t.bookstoreapi.model.response.PageResponse;
+import com.t3t.bookstoreapi.review.model.response.ReviewResponse;
+import com.t3t.bookstoreapi.review.service.ReviewService;
+import org.junit.Test;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.test.context.junit4.SpringRunner;
+import org.springframework.test.web.servlet.MockMvc;
+
+import java.util.Collections;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.when;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+/**
+ * {@link ReviewController} 클래스의 단위 테스트
+ *
+ * @author Yujin-nKim(김유진)
+ */
+@RunWith(SpringRunner.class)
+@WebMvcTest(value = ReviewController.class)
+public class ReviewControllerUnitTest {
+    @Autowired
+    private MockMvc mockMvc;
+    @MockBean
+    private ReviewService reviewService;
+
+    @DisplayName("도서별 리뷰 목록 조회 테스트")
+    @Test
+    public void testFindReviewsByBookId() throws Exception {
+
+        Long bookId = 1L;
+
+        PageResponse<ReviewResponse> dummyResponse = PageResponse.<ReviewResponse>builder()
+                        .content(Collections.singletonList(ReviewResponse.builder().name("test").build()))
+                        .pageNo(0)
+                        .pageSize(10)
+                        .totalElements(1)
+                        .totalPages(1)
+                        .last(true)
+                        .build();
+
+        when(reviewService.findReviewsByBookId(any(), any())).thenReturn(dummyResponse);
+
+        mockMvc.perform(get("/reviews/books/{bookId}", bookId))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$.data").exists());
+    }
+
+    @DisplayName("도서별 리뷰 목록 조회 테스트 | 리뷰 목록이 없는 경우 204 status code 반환 테스트")
+    @Test
+    public void testFindReviewsByBookId_BookNotFound_ReturnsNoContent() throws Exception {
+
+        Long bookId = 1L;
+
+        when(reviewService.findReviewsByBookId(any(), any())).thenReturn(
+                PageResponse.<ReviewResponse>builder()
+                        .content(Collections.emptyList())
+                        .pageSize(0)
+                        .totalElements(0)
+                        .totalPages(0)
+                        .last(true)
+                        .build());
+
+        mockMvc.perform(get("/reviews/books/{bookId}", bookId))
+                .andExpect(status().isNoContent());
+    }
+}