diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /modules/libjar/zipwriter/test/unit/test_alignment.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'modules/libjar/zipwriter/test/unit/test_alignment.js')
-rw-r--r-- | modules/libjar/zipwriter/test/unit/test_alignment.js | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/modules/libjar/zipwriter/test/unit/test_alignment.js b/modules/libjar/zipwriter/test/unit/test_alignment.js new file mode 100644 index 0000000000..afc5cf2b30 --- /dev/null +++ b/modules/libjar/zipwriter/test/unit/test_alignment.js @@ -0,0 +1,117 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + */ + +const DATA = "ZIP WRITER TEST DATA"; +const FILENAME = "test_data.txt"; +const time = 1199145600000; // Jan 1st 2008 + +var TESTS = [ + { + name: "test.txt", + compression: Ci.nsIZipWriter.COMPRESSION_DEFAULT, + }, + { + name: "test.png", + compression: Ci.nsIZipWriter.COMPRESSION_NONE, + }, +]; + +function swap16(n) { + return (((n >> 8) & 0xff) << 0) | (((n >> 0) & 0xff) << 8); +} + +function swap32(n) { + return ( + (((n >> 24) & 0xff) << 0) | + (((n >> 16) & 0xff) << 8) | + (((n >> 8) & 0xff) << 16) | + (((n >> 0) & 0xff) << 24) + ); +} + +function move_to_data(bis, offset) { + bis.readBytes(18); // Move to compressed size + var size = swap32(bis.read32()); + bis.readBytes(4); + var file_len = swap16(bis.read16()); + var extra_len = swap16(bis.read16()); + bis.readBytes(file_len); + bis.readBytes(extra_len); + offset += ZIP_FILE_HEADER_SIZE + file_len + extra_len; + + return { offset, size }; +} + +function test_alignment(align_size) { + // Create zip for testing. + zipW.open(tmpFile, PR_RDWR | PR_CREATE_FILE | PR_TRUNCATE); + for (var i = 0; i < TESTS.length; i++) { + var source = do_get_file(DATA_DIR + TESTS[i].name); + zipW.addEntryFile(TESTS[i].name, TESTS[i].compression, source, false); + } + var stream = Cc["@mozilla.org/io/string-input-stream;1"].createInstance( + Ci.nsIStringInputStream + ); + stream.setData(DATA, DATA.length); + zipW.addEntryStream( + FILENAME, + time * PR_USEC_PER_MSEC, + Ci.nsIZipWriter.COMPRESSION_NONE, + stream, + false + ); + zipW.alignStoredFiles(align_size); + zipW.close(); + + // Check data can be decompressed. + var zipR = new ZipReader(tmpFile); + stream = Cc["@mozilla.org/scriptableinputstream;1"].createInstance( + Ci.nsIScriptableInputStream + ); + stream.init(zipR.getInputStream(FILENAME)); + var result = stream.read(DATA.length); + Assert.equal(result, DATA); + stream.close(); + zipR.close(); + + // Check data is correct and aligned. + var fis = Cc["@mozilla.org/network/file-input-stream;1"].createInstance( + Ci.nsIFileInputStream + ); + fis.init(tmpFile, -1, -1, null); + let bis = Cc["@mozilla.org/binaryinputstream;1"].createInstance( + Ci.nsIBinaryInputStream + ); + bis.setInputStream(fis); + var offset = 0; + + var ret = move_to_data(bis, offset); // "test.txt" + offset = ret.offset; + bis.readBytes(ret.size); + offset += ret.size; + + ret = move_to_data(bis, offset); // "test.png" + offset = ret.offset; + Assert.equal(offset % align_size, 0); + bis.readBytes(ret.size); + offset += ret.size; + + ret = move_to_data(bis, offset); // "test_data.txt" + offset = ret.offset; + result = bis.readBytes(DATA.length); + Assert.equal(result, DATA); + Assert.equal(offset % align_size, 0); + + fis.close(); + bis.close(); +} + +function run_test() { + test_alignment(2); + test_alignment(4); + test_alignment(16); + test_alignment(4096); + test_alignment(32768); +} |