mtcute/packages/file-id/tests/serialize-unique.spec.ts

import { expect } from 'chai'
import { describe } from 'mocha'

import { parseFileId, toUniqueFileId } from '../src/index.js'

// test file IDs are partially taken from https://github.com/luckydonald/telegram_file_id

describe('serializing unique file ids', () => {
    const test = (id: string, expected: string) => {
        expect(toUniqueFileId(parseFileId(id))).eql(expected)
    }

    it('serializes unique ids for old file ids', () => {
        test('CAADAQADegAD997LEUiQZafDlhIeAg', 'AgADegAD997LEQ')
    })

    it('serializes unique ids for common file ids', () => {
        test('CAACAgEAAx0CVgtngQACAuFfU1GY9wiRG7A7jlIBbP2yvAostAACegAD997LEUiQZafDlhIeGwQ', 'AgADegAD997LEQ')
        test('BQACAgIAAxkBAAEJnzNgit00IDsKd07OdSeanwz8osecYAACdAwAAueoWEicaPvNdOYEwB8E', 'AgADdAwAAueoWEg')
        test(
            'AAMCAgADGQEAAQmfM2CK3TQgOwp3Ts51J5qfDPyix5xgAAJ0DAAC56hYSJxo-8105gTAT_bYoy4AAwEAB20AA0JBAAIfBA',
            'AQADdAwAAueoWEhy',
        )
        test('CAACAgIAAxkBAAEJny9gituz1_V_uSKBUuG_nhtzEtFOeQACXFoAAuCjggfYjw_KAAGSnkgfBA', 'AgADXFoAAuCjggc')
    })

    it('serializes unique ids for profile pictures', () => {
        // big
        test('AQADAgATySHBDgAEAwAD0npI3Bb___-wfxjpg7QCPf8pBQABHwQ', 'AQADySHBDgAE_ykFAAE')
        // small
        test('AQADAgATySHBDgAEAgAD0npI3Bb___-wfxjpg7QCPf0pBQABHwQ', 'AQADySHBDgAE_SkFAAE')
    })
})