import { describe, expect, it } from 'vite-plus/test'
import { base64Decode, base64Encode, sha256, uuid } from './crypto'

describe('crypto utils', () => {
  it('generates a UUID', () => {
    const id = uuid()
    expect(id).toMatch(/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/)
  })

  it('generates unique UUIDs', () => {
    const ids = new Set(Array.from({ length: 100 }, () => uuid()))
    expect(ids.size).toBe(100)
  })

  it('computes SHA-256 hash', async () => {
    expect(await sha256('hello')).toBe('2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824')
  })

  it('base64 encodes a string', () => {
    expect(base64Encode('hello world')).toBe('aGVsbG8gd29ybGQ=')
  })

  it('base64 decodes a string', () => {
    expect(base64Decode('aGVsbG8gd29ybGQ=')).toBe('hello world')
  })

  it('round-trips unicode through base64', () => {
    const original = 'こんにちは 🎵'
    expect(base64Decode(base64Encode(original))).toBe(original)
  })
})