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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();
+ });
+ });
+ });
+}
+
+function writeGarbageStream(text, cb) {
+ gzipAppend(new Buffer(text));
+ cb();
+}
+
+writeGzipStream(stream1, function() {
+ writeGzipStream(stream2, function() {
+ writeGarbageStream(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('error', function() {
+ assert.equal(gunzippedData.toString('utf8', 0, gunzippedOffset),
+ stream1 + stream2);
+ });
+ gunzip.on('end', function() {
+ assert.fail('end event not expected');
+ });
+
+ gunzip.write(gzipBuffer.slice(0, gzipOffset), 'binary', function() {
+ gunzip.end();
+ });
+ });
+ });
+});