Add unit tests for like/dislike routes (#70)

Author: Advayp

backend/app/api/songs/dislike/route.test.ts

@@ -0,0 +1,46 @@
+import { prismaMock } from '@/__test__/singleton';
+import { generateMockRequest } from '@/__test__/utils';
+import { PUT } from './route';
+import { NextRequest } from 'next/server';
+import { verifySession } from '@/lib/session';
+
+jest.mock('@/lib/session', () => ({
+  verifySession: jest.fn(),
+}));
+
+const mockVerifySession = verifySession as jest.Mock;
+
+test("Liked songs fails if session isn't valid", async () => {
+  mockVerifySession.mockResolvedValue({
+    isAuth: false,
+  });
+
+  prismaMock.song.upsert.mockResolvedValue({ id: 1, trackID: 'test' });
+
+  const req = generateMockRequest({
+    trackId: 'test',
+  });
+
+  const response = await PUT(req as NextRequest);
+  const data = await response.json();
+
+  expect(data.error).toEqual('Invalid session');
+});
+
+test('Liked songs succeeds for valid session', async () => {
+  mockVerifySession.mockResolvedValue({
+    isAuth: true,
+    uid: 2,
+  });
+
+  prismaMock.song.upsert.mockResolvedValue({ id: 1, trackID: 'test' });
+
+  const req = generateMockRequest({
+    trackId: 'test',
+  });
+
+  const response = await PUT(req as NextRequest);
+  const data = await response.json();
+
+  expect(data.success).toEqual(true);
+});

backend/app/api/songs/like/route.test.ts

@@ -0,0 +1,46 @@
+import { prismaMock } from '@/__test__/singleton';
+import { generateMockRequest } from '@/__test__/utils';
+import { PUT } from './route';
+import { NextRequest } from 'next/server';
+import { verifySession } from '@/lib/session';
+
+jest.mock('@/lib/session', () => ({
+  verifySession: jest.fn(),
+}));
+
+const mockVerifySession = verifySession as jest.Mock;
+
+test("Liked songs fails if session isn't valid", async () => {
+  mockVerifySession.mockResolvedValue({
+    isAuth: false,
+  });
+
+  prismaMock.song.upsert.mockResolvedValue({ id: 1, trackID: 'test' });
+
+  const req = generateMockRequest({
+    trackId: 'test',
+  });
+
+  const response = await PUT(req as NextRequest);
+  const data = await response.json();
+
+  expect(data.error).toEqual('Invalid session');
+});
+
+test('Liked songs succeeds for valid session', async () => {
+  mockVerifySession.mockResolvedValue({
+    isAuth: true,
+    uid: 2,
+  });
+
+  prismaMock.song.upsert.mockResolvedValue({ id: 1, trackID: 'test' });
+
+  const req = generateMockRequest({
+    trackId: 'test',
+  });
+
+  const response = await PUT(req as NextRequest);
+  const data = await response.json();
+
+  expect(data.success).toEqual(true);
+});