chore : ajout de test pur le parser de pdf #5

package.json

@@ -11,7 +11,7 @@
   "type": "commonjs",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1",
+    "test": "jest",
     "server": "nodemon ./src/server.ts"
   },
   "dependencies": {
@@ -22,8 +22,11 @@
   },
   "devDependencies": {
     "@types/express": "^5.0.6",
+    "@types/jest": "^30.0.0",
     "@types/node": "^25.9.3",
+    "jest": "^30.4.2",
     "nodemon": "^3.1.14",
+    "ts-jest": "^29.4.11",
     "ts-node": "^10.9.2",
     "typescript": "^6.0.3"
   }