first commit

src/modules/likes/likes.service.spec.ts

@@ -0,0 +1,30 @@
+import { LikesService } from './likes.service';
+
+describe('LikesService', () => {
+  it('returns liked false from status when target post no longer exists', async () => {
+    const likesRepository = {
+      findOne: jest.fn(),
+    };
+    const postsRepository = {
+      findById: jest.fn().mockResolvedValue(null),
+    };
+    const commentsRepository = {
+      findById: jest.fn(),
+    };
+
+    const service = new LikesService(
+      likesRepository as any,
+      postsRepository as any,
+      commentsRepository as any,
+    );
+
+    await expect(
+      service.getStatus('user-1', { targetId: '507f1f77bcf86cd799439011', targetType: 'post' }),
+    ).resolves.toEqual({
+      liked: false,
+      targetId: '507f1f77bcf86cd799439011',
+      targetType: 'post',
+    });
+    expect(likesRepository.findOne).not.toHaveBeenCalled();
+  });
+});