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Code Issues Releases Wiki Activity

For issue #48, add Gunzipper that relies on DecompressionStream('gzip').

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This commit is contained in:
Jeff Schiller 2024-02-04 20:54:51 -08:00
parent d01610ac9c
commit 813b154e8c
4 changed files with 179 additions and 1 deletions
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28
tests/archive-decompress.spec.js
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@ -2,7 +2,7 @@ import * as fs from 'node:fs';
import 'mocha';
import { expect } from 'chai';
import { Unarchiver, Unrarrer, Untarrer, Unzipper, getUnarchiver } from '../archive/decompress.js';
import { Gunzipper, Unarchiver, getUnarchiver } from '../archive/decompress.js';
const PATH = `tests/archive-testfiles/`;
@ -69,4 +69,30 @@ describe('bitjs.archive.decompress', () => {
expect(extractEvtFiredForOnExtract).equals(true);
});
}
describe('gunzip', () => {
it('can unzip a file', async () => {
const bufs = new Map(inputArrayBuffers);
const nodeBuf = fs.readFileSync(`${PATH}sample-1-slowest.txt.gz`);
const ab = nodeBuf.buffer.slice(nodeBuf.byteOffset, nodeBuf.byteOffset + nodeBuf.length);
let gunzipper = getUnarchiver(ab, {debug: true});
expect(gunzipper instanceof Gunzipper).equals(true);
let extractEvtFiredForOnExtract = false;
gunzipper.onExtract(evt => {
extractEvtFiredForOnExtract = true;
const {filename, fileData} = evt.unarchivedFile;
expect(filename).equals('sample-1.txt');
const ab = bufs.get('sample-1.txt');
expect(fileData.byteLength).equals(ab.byteLength);
for (let b = 0; b < fileData.byteLength; ++b) {
expect(fileData[b] === ab[b]);
}
});
await gunzipper.start();
expect(extractEvtFiredForOnExtract).equals(true);
});
});
});