complete_postservice_test_code
Change-Id: If176a0ac12d71e7695635761e7199c03926e4c85
diff --git a/src/test/java/com/example/g8backend/service/PostServiceTest.java b/src/test/java/com/example/g8backend/service/PostServiceTest.java
new file mode 100644
index 0000000..6f54177
--- /dev/null
+++ b/src/test/java/com/example/g8backend/service/PostServiceTest.java
@@ -0,0 +1,152 @@
+package com.example.g8backend.service;
+
+import com.example.g8backend.entity.Post;
+import com.example.g8backend.mapper.PostMapper;
+import com.example.g8backend.service.impl.PostServiceImpl;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
+
+import java.sql.Timestamp;
+import java.util.Arrays;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.*;
+
+@ExtendWith(SpringExtension.class)
+@DisplayName("帖子服务测试")
+class PostServiceTest {
+
+ @Mock
+ private PostMapper postMapper;
+
+ private PostServiceImpl postService;
+
+ private Post testPost;
+
+ @BeforeEach
+ void setUp() {
+ MockitoAnnotations.openMocks(this);
+ postService = new PostServiceImpl(postMapper);
+ testPost = createTestPost();
+ }
+
+ private Post createTestPost() {
+ Post post = new Post();
+ post.setPostId(1L);
+ post.setUserId(1L);
+ post.setPostTitle("测试标题");
+ post.setPostContent("测试内容");
+ post.setCreatedAt(new Timestamp(System.currentTimeMillis()));
+ return post;
+ }
+
+ @Test
+ @DisplayName("创建帖子-成功")
+ void save_ShouldSucceed() {
+ // Arrange
+ when(postMapper.insert(any(Post.class))).thenReturn(1);
+
+ // Act
+ boolean result = postService.save(testPost);
+
+ // Assert
+ assertTrue(result);
+ verify(postMapper).insert(testPost);
+ }
+
+ @Test
+ @DisplayName("获取帖子-通过ID存在")
+ void getById_WhenExists_ShouldReturnPost() {
+ // Arrange
+ when(postMapper.selectById(1L)).thenReturn(testPost);
+
+ // Act
+ Post result = postService.getById(1L);
+
+ // Assert
+ assertNotNull(result);
+ assertEquals(testPost.getPostId(), result.getPostId());
+ verify(postMapper).selectById(1L);
+ }
+
+ @Test
+ @DisplayName("获取帖子-通过ID不存在")
+ void getById_WhenNotExists_ShouldReturnNull() {
+ // Arrange
+ when(postMapper.selectById(999L)).thenReturn(null);
+
+ // Act
+ Post result = postService.getById(999L);
+
+ // Assert
+ assertNull(result);
+ verify(postMapper).selectById(999L);
+ }
+
+ @Test
+ @DisplayName("更新帖子-成功")
+ void updateById_ShouldSucceed() {
+ // Arrange
+ when(postMapper.updateById(any(Post.class))).thenReturn(1);
+
+ // Act
+ boolean result = postService.updateById(testPost);
+
+ // Assert
+ assertTrue(result);
+ verify(postMapper).updateById(testPost);
+ }
+
+ @Test
+ @DisplayName("删除帖子-成功")
+ void removeById_ShouldSucceed() {
+ // Arrange
+ when(postMapper.deleteById(1L)).thenReturn(1);
+
+ // Act
+ boolean result = postService.removeById(1L);
+
+ // Assert
+ assertTrue(result);
+ verify(postMapper).deleteById(1L);
+ }
+
+ @Test
+ @DisplayName("获取用户帖子列表")
+ void getPostsByUserId_ShouldReturnPosts() {
+ // Arrange
+ List<Post> expectedPosts = Arrays.asList(testPost);
+ when(postMapper.getPostsByUserId(1L)).thenReturn(expectedPosts);
+
+ // Act
+ List<Post> result = postService.getPostsByUserId(1L);
+
+ // Assert
+ assertNotNull(result);
+ assertFalse(result.isEmpty());
+ assertEquals(testPost.getPostId(), result.get(0).getPostId());
+ verify(postMapper).getPostsByUserId(1L);
+ }
+
+ @Test
+ @DisplayName("获取用户帖子-空列表")
+ void getPostsByUserId_WhenNoPosts_ShouldReturnEmptyList() {
+ // Arrange
+ when(postMapper.getPostsByUserId(999L)).thenReturn(Arrays.asList());
+
+ // Act
+ List<Post> result = postService.getPostsByUserId(999L);
+
+ // Assert
+ assertNotNull(result);
+ assertTrue(result.isEmpty());
+ verify(postMapper).getPostsByUserId(999L);
+ }
+}
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