diff options
Diffstat (limited to 'test/parallel/test-zlib.js')
| -rw-r--r-- | test/parallel/test-zlib.js | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/parallel/test-zlib.js b/test/parallel/test-zlib.js index 13f1a2776ad..392fc5feadf 100644 --- a/test/parallel/test-zlib.js +++ b/test/parallel/test-zlib.js @@ -131,6 +131,28 @@ SlowStream.prototype.end = function(chunk) { return this.ended; }; +// windowBits: 8 shouldn't throw +assert.doesNotThrow(() => { + zlib.createDeflateRaw({ windowBits: 8 }); +}, 'windowsBits set to 8 should follow legacy zlib behavior'); + +{ + const node = fs.createReadStream(process.execPath); + const raw = []; + const reinflated = []; + node.on('data', (chunk) => raw.push(chunk)); + + // Usually, the inflate windowBits parameter needs to be at least the + // value of the matching deflate’s windowBits. However, inflate raw with + // windowBits = 8 should be able to handle compressed data from a source + // that does not know about the silent 8-to-9 upgrade of windowBits + // that older versions of zlib/Node perform. + node.pipe(zlib.createDeflateRaw({ windowBits: 9 })) + .pipe(zlib.createInflateRaw({ windowBits: 8 })) + .on('data', (chunk) => reinflated.push(chunk)) + .on('end', common.mustCall( + () => assert(Buffer.concat(raw).equals(Buffer.concat(reinflated))))); +} // for each of the files, make sure that compressing and // decompressing results in the same data, for every combination |