xref: /third_party/node/test/parallel/test-zlib-zero-byte.js (revision 1cb0ef41)

// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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'use strict';
const common = require('../common');
const assert = require('assert');
const zlib = require('zlib');

for (const Compressor of [ zlib.Gzip, zlib.BrotliCompress ]) {
  const gz = Compressor();
  const emptyBuffer = Buffer.alloc(0);
  let received = 0;
  gz.on('data', function(c) {
    received += c.length;
  });

  gz.on('end', common.mustCall(function() {
    const expected = Compressor === zlib.Gzip ? 20 : 1;
    assert.strictEqual(received, expected,
                       `${received}, ${expected}, ${Compressor.name}`);
  }));
  gz.on('finish', common.mustCall());
  gz.write(emptyBuffer);
  gz.end();
}