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/* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
Components.utils.import("resource://gre/modules/osfile.jsm");
function run_test() {
do_test_pending();
run_next_test();
}
add_task(function test_compress_lz4() {
let path = OS.Path.join(OS.Constants.Path.tmpDir, "compression.lz");
let length = 1024;
let array = new Uint8Array(length);
for (let i = 0; i < array.byteLength; ++i) {
array[i] = i;
}
let arrayAsString = Array.prototype.join.call(array);
do_print("Writing data with lz4 compression");
let bytes = yield OS.File.writeAtomic(path, array, { compression: "lz4" });
do_print("Compressed " + length + " bytes into " + bytes);
do_print("Reading back with lz4 decompression");
let decompressed = yield OS.File.read(path, { compression: "lz4" });
do_print("Decompressed into " + decompressed.byteLength + " bytes");
do_check_eq(arrayAsString, Array.prototype.join.call(decompressed));
});
add_task(function test_uncompressed() {
do_print("Writing data without compression");
let path = OS.Path.join(OS.Constants.Path.tmpDir, "no_compression.tmp");
let array = new Uint8Array(1024);
for (let i = 0; i < array.byteLength; ++i) {
array[i] = i;
}
let bytes = yield OS.File.writeAtomic(path, array); // No compression
let exn;
// Force decompression, reading should fail
try {
yield OS.File.read(path, { compression: "lz4" });
} catch (ex) {
exn = ex;
}
do_check_true(!!exn);
// Check the exception message (and that it contains the file name)
do_check_true(exn.message.indexOf(`Invalid header (no magic number) - Data: ${ path }`) != -1);
});
add_task(function test_no_header() {
let path = OS.Path.join(OS.Constants.Path.tmpDir, "no_header.tmp");
let array = new Uint8Array(8).fill(0,0); // Small array with no header
do_print("Writing data with no header");
let bytes = yield OS.File.writeAtomic(path, array); // No compression
let exn;
// Force decompression, reading should fail
try {
yield OS.File.read(path, { compression: "lz4" });
} catch (ex) {
exn = ex;
}
do_check_true(!!exn);
// Check the exception message (and that it contains the file name)
do_check_true(exn.message.indexOf(`Buffer is too short (no header) - Data: ${ path }`) != -1);
});
add_task(function test_invalid_content() {
let path = OS.Path.join(OS.Constants.Path.tmpDir, "invalid_content.tmp");
let arr1 = new Uint8Array([109, 111, 122, 76, 122, 52, 48, 0]);
let arr2 = new Uint8Array(248).fill(1,0);
let array = new Uint8Array(arr1.length + arr2.length);
array.set(arr1);
array.set(arr2, arr1.length);
do_print("Writing invalid data (with a valid header and only ones after that)");
let bytes = yield OS.File.writeAtomic(path, array); // No compression
let exn;
// Force decompression, reading should fail
try {
yield OS.File.read(path, { compression: "lz4" });
} catch (ex) {
exn = ex;
}
do_check_true(!!exn);
// Check the exception message (and that it contains the file name)
do_check_true(exn.message.indexOf(`Invalid content: Decompression stopped at 0 - Data: ${ path }`) != -1);
});
add_task(function() {
do_test_finished();
});
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