forked from mirrors/gecko-dev
4a06c925ac
# ignore-this-changeset Differential Revision: https://phabricator.services.mozilla.com/D36052 --HG-- extra : source : b5be5b4f4b47c256e28a29f665dc754f6407ee7f
106 lines
3.1 KiB
JavaScript
106 lines
3.1 KiB
JavaScript
/* Any copyright is dedicated to the Public Domain.
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* http://creativecommons.org/publicdomain/zero/1.0/ */
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"use strict";
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const { OS } = ChromeUtils.import("resource://gre/modules/osfile.jsm");
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function run_test() {
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do_test_pending();
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run_next_test();
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}
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add_task(async function test_compress_lz4() {
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let path = OS.Path.join(OS.Constants.Path.tmpDir, "compression.lz");
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let length = 1024;
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let array = new Uint8Array(length);
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for (let i = 0; i < array.byteLength; ++i) {
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array[i] = i;
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}
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let arrayAsString = Array.prototype.join.call(array);
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info("Writing data with lz4 compression");
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let bytes = await OS.File.writeAtomic(path, array, { compression: "lz4" });
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info("Compressed " + length + " bytes into " + bytes);
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info("Reading back with lz4 decompression");
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let decompressed = await OS.File.read(path, { compression: "lz4" });
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info("Decompressed into " + decompressed.byteLength + " bytes");
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Assert.equal(arrayAsString, Array.prototype.join.call(decompressed));
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});
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add_task(async function test_uncompressed() {
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info("Writing data without compression");
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let path = OS.Path.join(OS.Constants.Path.tmpDir, "no_compression.tmp");
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let array = new Uint8Array(1024);
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for (let i = 0; i < array.byteLength; ++i) {
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array[i] = i;
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}
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await OS.File.writeAtomic(path, array); // No compression
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let exn;
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// Force decompression, reading should fail
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try {
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await OS.File.read(path, { compression: "lz4" });
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} catch (ex) {
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exn = ex;
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}
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Assert.ok(!!exn);
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// Check the exception message (and that it contains the file name)
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Assert.ok(
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exn.message.includes(`Invalid header (no magic number) - Data: ${path}`)
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);
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});
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add_task(async function test_no_header() {
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let path = OS.Path.join(OS.Constants.Path.tmpDir, "no_header.tmp");
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let array = new Uint8Array(8).fill(0, 0); // Small array with no header
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info("Writing data with no header");
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await OS.File.writeAtomic(path, array); // No compression
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let exn;
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// Force decompression, reading should fail
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try {
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await OS.File.read(path, { compression: "lz4" });
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} catch (ex) {
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exn = ex;
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}
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Assert.ok(!!exn);
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// Check the exception message (and that it contains the file name)
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Assert.ok(
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exn.message.includes(`Buffer is too short (no header) - Data: ${path}`)
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);
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});
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add_task(async function test_invalid_content() {
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let path = OS.Path.join(OS.Constants.Path.tmpDir, "invalid_content.tmp");
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let arr1 = new Uint8Array([109, 111, 122, 76, 122, 52, 48, 0]);
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let arr2 = new Uint8Array(248).fill(1, 0);
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let array = new Uint8Array(arr1.length + arr2.length);
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array.set(arr1);
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array.set(arr2, arr1.length);
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info("Writing invalid data (with a valid header and only ones after that)");
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await OS.File.writeAtomic(path, array); // No compression
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let exn;
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// Force decompression, reading should fail
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try {
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await OS.File.read(path, { compression: "lz4" });
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} catch (ex) {
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exn = ex;
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}
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Assert.ok(!!exn);
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// Check the exception message (and that it contains the file name)
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Assert.ok(
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exn.message.includes(
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`Invalid content: Decompression stopped at 0 - Data: ${path}`
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)
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);
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});
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add_task(function() {
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do_test_finished();
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});
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