зеркало из https://github.com/mozilla/gecko-dev.git
114 строки
3.1 KiB
JavaScript
114 строки
3.1 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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const DATA = "ZIP WRITER TEST DATA";
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const FILENAME = "test_data.txt";
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const CRC = 0xe6164331;
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const time = 1199145600000; // Jan 1st 2008
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var TESTS = [
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{
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name: "test.txt",
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compression: Ci.nsIZipWriter.COMPRESSION_DEFAULT
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},
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{
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name: "test.png",
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compression: Ci.nsIZipWriter.COMPRESSION_NONE
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}
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];
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function swap16(n)
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{
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return (((n >> 8) & 0xFF) << 0) |
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(((n >> 0) & 0xFF) << 8);
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}
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function swap32(n)
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{
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return (((n >> 24) & 0xFF) << 0) |
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(((n >> 16) & 0xFF) << 8) |
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(((n >> 8) & 0xFF) << 16) |
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(((n >> 0) & 0xFF) << 24);
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}
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function move_to_data(bis, offset)
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{
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bis.readBytes(18); // Move to compressed size
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var size = swap32(bis.read32());
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bis.readBytes(4);
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var file_len = swap16(bis.read16());
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var extra_len = swap16(bis.read16());
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var file = bis.readBytes(file_len);
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bis.readBytes(extra_len);
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offset += ZIP_FILE_HEADER_SIZE + file_len + extra_len;
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return {offset: offset, size: size};
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}
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function test_alignment(align_size)
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{
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// Create zip for testing.
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zipW.open(tmpFile, PR_RDWR | PR_CREATE_FILE | PR_TRUNCATE);
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for (var i = 0; i < TESTS.length; i++) {
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var source = do_get_file(DATA_DIR + TESTS[i].name);
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zipW.addEntryFile(TESTS[i].name, TESTS[i].compression, source, false);
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}
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var stream = Cc["@mozilla.org/io/string-input-stream;1"]
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.createInstance(Ci.nsIStringInputStream);
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stream.setData(DATA, DATA.length);
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zipW.addEntryStream(FILENAME, time * PR_USEC_PER_MSEC,
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Ci.nsIZipWriter.COMPRESSION_NONE, stream, false);
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zipW.alignStoredFiles(align_size);
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zipW.close();
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// Check data can be decompressed.
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var zipR = new ZipReader(tmpFile);
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var stream = Cc["@mozilla.org/scriptableinputstream;1"]
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.createInstance(Ci.nsIScriptableInputStream);
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stream.init(zipR.getInputStream(FILENAME));
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var result = stream.read(DATA.length);
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do_check_eq(result, DATA);
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stream.close();
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zipR.close();
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// Check data is correct and aligned.
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var fis = Cc["@mozilla.org/network/file-input-stream;1"]
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.createInstance(Ci.nsIFileInputStream);
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fis.init(tmpFile, -1, -1, null);
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let bis = Cc["@mozilla.org/binaryinputstream;1"]
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.createInstance(Ci.nsIBinaryInputStream);
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bis.setInputStream(fis);
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var offset = 0;
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var ret = move_to_data(bis, offset); // "test.txt"
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offset = ret.offset;
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bis.readBytes(ret.size);
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offset += ret.size;
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ret = move_to_data(bis, offset); // "test.png"
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offset = ret.offset;
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do_check_eq(offset % align_size, 0);
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bis.readBytes(ret.size);
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offset += ret.size;
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ret = move_to_data(bis, offset); // "test_data.txt"
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offset = ret.offset;
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var result = bis.readBytes(DATA.length);
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do_check_eq(result, DATA);
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do_check_eq(offset % align_size, 0);
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fis.close();
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bis.close();
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}
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function run_test()
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{
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test_alignment(2);
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test_alignment(4);
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test_alignment(16);
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test_alignment(4096);
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test_alignment(32768);
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}
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