@substrate-system/bencode/test/BEP-0023.test.ts

Bencode de/encoder

import path, { dirname } from 'path'
import fs from 'fs'
import { test } from '@substrate-system/tapzero'
import { fileURLToPath } from 'url'
import bencode from '../src/index.js'

const __filename = fileURLToPath(import.meta.url)
const __dirname = dirname(__filename)

// @see http://www.bittorrent.org/beps/bep_0023.html

test('should be able to handle an compacted peer announce', function (t) {
    t.plan(1)
    const filename = path.join(__dirname, 'data', 'announce-compacted-peers.bin')
    const announce = fs.readFileSync(filename)
    const data = bencode.decode(announce)

    t.deepEqual(data, {
        complete: 4,
        incomplete: 3,
        interval: 1800,
        'min interval': 1800,
        peers: new Uint8Array(Buffer.from('2ebd1b641a1f51d54c0546cc342190401a1f626ee9c6c8d5cb0d92131a1fac4e689a3c6b180f3d5746db', 'hex'))
    })
})

test('should be able to handle a compacted peer announce when decoding strings', function (t) {
    const filename = path.join(__dirname, 'data', 'announce-compacted-peers.bin')
    const announce = fs.readFileSync(filename)
    const data = bencode.decode(announce, 'utf8')

    t.plan(1)
    t.deepEqual(data, {
        complete: 4,
        incomplete: 3,
        interval: 1800,
        'min interval': 1800,
        peers: '.�\u001bd\u001a\u001fQ�L\u0005F�4!�@\u001a\u001fbn�����\r�\u0013\u001a\u001f�Nh�<k\u0018\u000f=WF�'
    })
})