Does the user exists on mysql to access the db?

I wonder if you are confusing the DB user with a user within the DB.

console.log routes/auth/login.js:18
     test test
i recive correct data , its ok

"test test" is user in users table, thats ok, its not user from config.json

ok, so are you sure you have the correct password on the config.json?

Or how did you implement jest?

that's all implementation

server works good without jest request.
but you can try to run it :)
git clone https://github.com/iCheater/expressServer

i was following this guide https://dev.to/nedsoft/testing-nodejs-express-api-with-jest-and-supertest-1km6

If we cannot fix it now I'll try later, I'm not on my laptop now :(

👌

I'm reading the article

@iCheater can you show your sequelize configuration?

This is really weird, it should work

Try making the request using Postman

yep, postman works, as it should) curl works too, but post request with JEST no)

config.json

{
 "development": {
   "username": "shop_server",
   "password": "shop_server",
   "database": "shop_server_db",
   "host": "127.0.0.1",
   "dialect": "postgres",
   "logging": true
 },
 "test": {
   "username": "root",
   "password": null,
   "database": "database_test",
   "host": "127.0.0.1",
   "dialect": "postgres",
   "operatorsAliases": false
 },
 "production": {
   "username": "root",
   "password": null,
   "database": "database_production",
   "host": "127.0.0.1",
   "dialect": "postgres",
   "operatorsAliases": false
 }
}

omg

OK, i have understood