Jest testing framework for React & Node.js

https://jestjs.io/docs/getting-started

{

"name": "project",

"version": "1.0.0",

"description": "API",

"main": "src/server.js",

"scripts": {

"test": "jest",

"test-watch": "jest --watchAll",

"start": "node src/server.js",

"watch": "nodemon src/server.js"

},

"keywords": [],

"author": "",

"license": "ISC",

"dependencies": {

"cors": "^2.8.5",

"csv-parse": "^5.3.1",

"express": "^4.18.2",

"morgan": "^1.10.0"

},

"devDependencies": {

"jest": "^29.2.2",

"supertest": "^6.3.1"

}

}

npm i jest --save-dev

npm i supertest --save-dev