test: init jest test

babel.config.js

@@ -0,0 +1,6 @@
+module.exports = {
+    presets: [
+        ['@babel/preset-env', {targets: {node: 'current'}}],
+        '@babel/preset-typescript',
+    ],
+};

package.json

@@ -64,7 +64,7 @@
     },
     "testEnvironment": "node",
     "testMatch": [
-      "**/test/**/*.js"
+      "**/test/**/*.ts"
     ],
     "testPathIgnorePatterns": [
       "/node_modules/",
@@ -150,6 +150,9 @@
     "xxhash-wasm": "1.0.2"
   },
   "devDependencies": {
+    "@babel/preset-env": "7.23.9",
+    "@babel/preset-typescript": "7.23.3",
+    "@jest/globals": "29.7.0",
     "@microsoft/eslint-formatter-sarif": "3.0.0",
     "@stylistic/eslint-plugin-js": "1.5.4",
     "@types/aes-js": "3.1.4",
@@ -211,6 +214,7 @@
     "supertest": "6.3.4",
     "to-vfile": "8.0.0",
     "tosource": "2.0.0-alpha.3",
+    "ts-jest": "29.1.2",
     "tsx": "4.7.0",
     "unified": "9.2.2",
     "unist-util-visit": "4.1.2",

test/app.js

@@ -1,16 +0,0 @@
-const supertest = require('supertest');
-const server = require('../lib/index');
-const request = supertest(server);
-
-afterAll(() => {
-    server.close();
-});
-
-describe('index', () => {
-    it('serve logo', async () => {
-        const response = await request.get('/logo.png');
-        expect(response.status).toBe(200);
-        expect(response.headers['content-type']).toBe('image/png');
-        expect(response.headers['content-length']).toBe('89034');
-    });
-});

test/app.ts

@@ -0,0 +1,11 @@
+import { describe, expect, it } from '@jest/globals';
+
+import app from '../lib/app';
+
+describe('index', () => {
+    it('serve index', async () => {
+        const res = await app.request('/')
+        expect(res.status).toBe(200)
+        expect(await res.text()).toContain('Welcome to RSSHub!')
+    });
+});