зеркало из https://github.com/mozilla/gecko-dev.git
120 строки
4.2 KiB
JavaScript
120 строки
4.2 KiB
JavaScript
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Zip Writer Component.
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*
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* The Initial Developer of the Original Code is
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* Dave Townsend <dtownsend@oxymoronical.com>.
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*
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* Portions created by the Initial Developer are Copyright (C) 2007
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK *****
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*/
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function BinaryComparer(file, callback) {
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var fstream = Cc["@mozilla.org/network/file-input-stream;1"].
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createInstance(Ci.nsIFileInputStream);
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fstream.init(file, -1, 0, 0);
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this.length = file.fileSize;
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this.fileStream = Cc["@mozilla.org/binaryinputstream;1"].
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createInstance(Ci.nsIBinaryInputStream);
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this.fileStream.setInputStream(fstream);
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this.offset = 0;
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this.callback = callback;
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}
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BinaryComparer.prototype = {
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fileStream: null,
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offset: null,
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length: null,
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callback: null,
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onStartRequest: function(aRequest, aContext) {
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},
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onStopRequest: function(aRequest, aContext, aStatusCode) {
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this.fileStream.close();
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do_check_eq(aStatusCode, Components.results.NS_OK);
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do_check_eq(this.offset, this.length);
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this.callback();
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},
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onDataAvailable: function(aRequest, aContext, aInputStream, aOffset, aCount) {
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var stream = Cc["@mozilla.org/binaryinputstream;1"].
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createInstance(Ci.nsIBinaryInputStream);
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stream.setInputStream(aInputStream);
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var source, actual;
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for (var i = 0; i < aCount; i++) {
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try {
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source = this.fileStream.read8();
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}
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catch (e) {
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do_throw("Unable to read from file at offset " + this.offset + " " + e);
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}
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try {
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actual = stream.read8();
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}
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catch (e) {
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do_throw("Unable to read from converted stream at offset " + this.offset + " " + e);
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}
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if (source != actual)
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do_throw("Invalid value " + actual + " at offset " + this.offset + ", should have been " + source);
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this.offset++;
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}
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}
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}
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function comparer_callback()
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{
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do_test_finished();
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}
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function run_test()
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{
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var source = do_get_file(DATA_DIR + "test_bug399727.html");
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var comparer = new BinaryComparer(do_get_file(DATA_DIR + "test_bug399727.zlib"),
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comparer_callback);
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// Prepare the stream converter
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var scs = Cc["@mozilla.org/streamConverters;1"].
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getService(Ci.nsIStreamConverterService);
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var converter = scs.asyncConvertData("uncompressed", "deflate", comparer, null);
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// Open the expected output file
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var fstream = Cc["@mozilla.org/network/file-input-stream;1"].
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createInstance(Ci.nsIFileInputStream);
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fstream.init(source, -1, 0, 0);
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// Set up a pump to push data from the file to the stream converter
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var pump = Cc["@mozilla.org/network/input-stream-pump;1"].
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createInstance(Ci.nsIInputStreamPump);
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pump.init(fstream, -1, -1, 0, 0, true);
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pump.asyncRead(converter, null);
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do_test_pending();
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}
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