test(startup): add startup test for missing DISCORD_TOKEN

package.json

@@ -3,9 +3,10 @@
   "version": "1.0.0",
   "description": "",
   "main": "index.js",
-  "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
-  },
+    "scripts": {
+        "start": "node src/index.js",
+        "test": "jest"
+    },
   "keywords": [],
   "author": "",
   "license": "ISC",
@@ -14,5 +15,8 @@
     "dotenv": "^16.5.0",
     "erela.js": "^2.4.0",
     "winston": "^3.17.0"
+  },
+  "devDependencies": {
+    "jest": "^29.7.0"
   }
 }

tests/startup.test.js

@@ -0,0 +1,13 @@
+const { spawnSync } = require('child_process');
+
+describe('Bot Startup', () => {
+  test('exits with code 1 if DISCORD_TOKEN is missing', () => {
+    // Clear DISCORD_TOKEN
+    const env = { ...process.env };
+    delete env.DISCORD_TOKEN;
+
+    const result = spawnSync('node', ['src/index.js'], { env, encoding: 'utf-8' });
+    expect(result.status).toBe(1);
+    expect(result.stderr || result.stdout).toMatch(/DISCORD_TOKEN is missing/);
+  });
+});