verdaccio/packages/core/tarball/tests/getTarballDetails.spec.ts

import fs from 'fs';
import path from 'path';
import { Readable } from 'stream';

import { getTarballDetails } from '../src/getTarballDetails.ts';

const getFilePath = (filename: string): string => {
  return path.resolve(__dirname, `assets/${filename}`);
};

const getFileBuffer = async (filename: string): Promise<Buffer> => {
  return fs.promises.readFile(getFilePath(filename));
};

describe('getTarballDetails', () => {
  test('should return stats of tarball (gzipped)', async () => {
    const buffer = await getFileBuffer('tarball.tgz');
    const readable = Readable.from(buffer);
    const details = await getTarballDetails(readable);
    expect(details.fileCount).toBe(2);
    expect(details.unpackedSize).toBe(1280);
  });

  test('should return stats of tarball (uncompressed)', async () => {
    const buffer = await getFileBuffer('tarball.tar');
    const readable = Readable.from(buffer);
    const details = await getTarballDetails(readable);
    expect(details.fileCount).toBe(2);
    expect(details.unpackedSize).toBe(1280);
  });

  test('should throw an error if the buffer is corrupt', async () => {
    const corruptBuffer = Buffer.from('this is not a tarball');
    const readable = Readable.from(corruptBuffer);
    await expect(getTarballDetails(readable)).rejects.toThrow();
  });
});