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// 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,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
// test unzipping a file that was created by concatenating multiple gzip
// streams.
var common = require('../common');
var assert = require('assert');
var zlib = require('zlib');
var util = require('util');
var gzipBuffer = new Buffer(128);
var gzipOffset = 0;
var stream1 = '123\n';
var stream2 = '456\n';
var stream3 = '789\n';
function gzipAppend(data) {
data.copy(gzipBuffer, gzipOffset);
gzipOffset += data.length;
}
function writeGzipStream(text, cb) {
var gzip = zlib.createGzip();
gzip.on('data', gzipAppend);
gzip.write(text, function() {
gzip.flush(function() {
gzip.end(function() {
cb();
});
});
});
}
writeGzipStream(stream1, function() {
writeGzipStream(stream2, function() {
writeGzipStream(stream3, function() {
var gunzip = zlib.createGunzip();
var gunzippedData = new Buffer(2 * 1024);
var gunzippedOffset = 0;
gunzip.on('data', function (data) {
data.copy(gunzippedData, gunzippedOffset);
gunzippedOffset += data.length;
});
gunzip.on('end', function() {
assert.equal(gunzippedData.toString('utf8', 0, gunzippedOffset), stream1 + stream2 + stream3);
});
gunzip.write(gzipBuffer.slice(0, gzipOffset), 'binary', function() {
gunzip.end();
});
});
});
});
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