import { describe, expect, it } from 'vitest'
import { toCsv } from './csv.ts'

describe('toCsv', () => {
  it('quotes commas, quotes and newlines', () => {
    expect(toCsv(['a', 'b'], [['x,y', 'say "hi"\nok']])).toBe('a,b\r\n"x,y","say ""hi""\nok"\r\n')
  })

  it('neutralises formula prefixes and blanks nulls', () => {
    expect(toCsv(['a'], [['=1+1'], ['-2'], [null], [3]])).toBe("a\r\n'=1+1\r\n'-2\r\n\r\n3\r\n")
  })
})