import { test } from '@japa/runner'
import { readFileSync } from 'node:fs'
import { lzmaDecode, LzmaError } from '#lib/sevenzip/lzma'

const fixture = (name: string) => readFileSync(new URL(`../../fixtures/sevenzip/${name}`, import.meta.url))

test.group('probe / LZMA', () => {
  test('decodes a stream Python made (.lzma: 5 property bytes, the size, the raw stream)', ({ assert }) => {
    const alone = fixture('sample.lzma')
    const expected = fixture('sample.bin')
    const decoded = lzmaDecode(alone.subarray(0, 5), alone.subarray(13), expected.length)
    assert.isTrue(decoded.equals(expected))
  })

  test('a cut-off or damaged stream throws LzmaError', ({ assert }) => {
    const alone = fixture('sample.lzma')
    const size = fixture('sample.bin').length
    assert.throws(() => lzmaDecode(alone.subarray(0, 5), alone.subarray(13, 200), size), LzmaError)
  })
})