import { describe, expect, it } from 'vitest'

import { formatCard, normalizeCard, validCard } from './card'

describe('card utilities', () => {
  it('normalizes Persian and Arabic digits with common separators', () => {
    expect(normalizeCard('۶۰۳۷ ٩٩۷۵-۱۲۳۴ ۵۶۷۸')).toBe('6037997512345678')
  })

  it('keeps unexpected characters so validation can report them', () => {
    expect(normalizeCard('6037 ABC 1234')).toBe('6037ABC1234')
  })

  it('accepts only sixteen ASCII digits', () => {
    expect(validCard('6037997512345678')).toBe(true)
    expect(validCard('603799751234567')).toBe(false)
    expect(validCard('603799ABC2345678')).toBe(false)
  })

  it('groups a normalized card for display', () => {
    expect(formatCard('6037997512345678')).toBe('6037 9975 1234 5678')
  })
})