point-of-sales/pos-frontend/__test__/db.test.jsx

import '@testing-library/jest-dom'
import pl from 'nodejs-polars'

describe('DATABASE', () => {
  it('DATA', () => {
    const fooSeries = pl.Series("foo", [1, 2, 3])
    let res = fooSeries.sum()
    console.log(res)
  })
})