feat: PWA manifest + API 测试套件

Author: CodeJudge

backend/package.json

@@ -5,7 +5,9 @@
   "main": "src/app.js",
   "scripts": {
     "start": "node src/app.js",
-    "dev": "nodemon src/app.js"
+    "dev": "nodemon src/app.js",
+    "test": "node --test tests/*.test.js",
+    "test:watch": "node --watch --test tests/*.test.js"
   },
   "dependencies": {
     "bcryptjs": "^2.4.3",

backend/tests/api.test.js

@@ -0,0 +1,75 @@
+const { describe, it, before, after } = require('node:test');
+const assert = require('assert');
+
+const BASE = 'http://localhost:3001/api';
+
+describe('CodeJudge API Tests', () => {
+  let token;
+
+  it('GET /health returns ok', async () => {
+    const res = await fetch(`${BASE}/../api/health`);
+    const data = await res.json();
+    assert.equal(data.status, 'ok');
+  });
+
+  it('GET /problems/stats returns numbers', async () => {
+    const res = await fetch(`${BASE}/problems/stats`);
+    const data = await res.json();
+    assert.ok(typeof data.total === 'number');
+    assert.ok(data.total >= 10000);
+  });
+
+  it('POST /auth/login with valid credentials returns token', async () => {
+    const res = await fetch(`${BASE}/auth/login`, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ email: 'admin@oj.com', password: 'admin123' }),
+    });
+    const data = await res.json();
+    assert.ok(data.token);
+    assert.equal(data.user.role, 'admin');
+    token = data.token;
+  });
+
+  it('GET /auth/profile requires auth', async () => {
+    const res = await fetch(`${BASE}/auth/profile`);
+    assert.equal(res.status, 401);
+  });
+
+  it('GET /auth/profile with token returns user', async () => {
+    const res = await fetch(`${BASE}/auth/profile`, {
+      headers: { Authorization: `Bearer ${token}` },
+    });
+    const data = await res.json();
+    assert.equal(data.role, 'admin');
+  });
+
+  it('GET /problems returns paginated list', async () => {
+    const res = await fetch(`${BASE}/problems?limit=5&page=1`);
+    const data = await res.json();
+    assert.equal(data.problems.length, 5);
+    assert.ok(data.total >= 10000);
+  });
+
+  it('GET /problems/:id returns problem', async () => {
+    const res = await fetch(`${BASE}/problems/1`);
+    const data = await res.json();
+    assert.ok(data.title);
+  });
+
+  it('GET /auth/leaderboard returns array', async () => {
+    const res = await fetch(`${BASE}/auth/leaderboard`);
+    const data = await res.json();
+    assert.ok(Array.isArray(data));
+  });
+
+  it('POST /submissions choice answer works', async () => {
+    const res = await fetch(`${BASE}/submissions`, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json', Authorization: `Bearer ${token}` },
+      body: JSON.stringify({ problem_id: 5000, answer: 0 }),
+    });
+    const data = await res.json();
+    assert.ok(['accepted', 'wrong_answer'].includes(data.status));
+  });
+});

frontend/index.html

@@ -9,6 +9,8 @@
     <meta property="og:description" content="编程、选择、填空三种题型，在线编写代码实时判题" />
     <meta property="og:type" content="website" />
     <link rel="icon" type="image/svg+xml" href="/vite.svg" />
+    <link rel="manifest" href="/manifest.json" />
+    <meta name="theme-color" content="#020617" />
     <title>CodeJudge - 在线评测系统</title>
     <link rel="preconnect" href="https://fonts.googleapis.com" />
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />

frontend/public/manifest.json

@@ -0,0 +1,12 @@
+{
+  "name": "CodeJudge - 在线评测系统",
+  "short_name": "CodeJudge",
+  "description": "在线编写代码、答题判题，支持编程/选择/填空三种题型",
+  "start_url": "/",
+  "display": "standalone",
+  "background_color": "#020617",
+  "theme_color": "#3b82f6",
+  "icons": [
+    { "src": "/vite.svg", "sizes": "any", "type": "image/svg+xml", "purpose": "any maskable" }
+  ]
+}