The Tor Browser: toolkit/components/workerlz4/tests/xpcshell/data/worker

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 importScripts("resource://gre/modules/workers/require.js");

     2 importScripts("resource://gre/modules/osfile.jsm");

     5 function do_print(x) {

     6   //self.postMessage({kind: "do_print", args: [x]});

     7   dump("TEST-INFO: " + x + "\n");

8 }

    10 function do_check_true(x) {

    11   self.postMessage({kind: "do_check_true", args: [!!x]});

    12   if (x) {

    13     dump("TEST-PASS: " + x + "\n");

    14   } else {

    15     throw new Error("do_check_true failed");

    16   }

    17 }

    19 function do_check_eq(a, b) {

    20   let result = a == b;

    21   self.postMessage({kind: "do_check_true", args: [result]});

    22   if (!result) {

    23     throw new Error("do_check_eq failed " + a + " != " + b);

    24   }

    25 }

    27 function do_test_complete() {

    28   self.postMessage({kind: "do_test_complete", args:[]});

    29 }

    31 self.onmessage = function() {

    32   try {

    33     run_test();

    34   } catch (ex) {

    35     let {message, moduleStack, moduleName, lineNumber} = ex;

    36     let error = new Error(message, moduleName, lineNumber);

    37     error.stack = moduleStack;

    38     dump("Uncaught error: " + error + "\n");

    39     dump("Full stack: " + moduleStack + "\n");

    40     throw error;

    41   }

    42 };

    44 let Lz4;

    45 let Internals;

    46 function test_import() {

    47   Lz4 = require("resource://gre/modules/workers/lz4.js");

    48   Internals = require("resource://gre/modules/workers/lz4_internal.js");

    49 }

    51 function test_bound() {

    52   for (let k of ["compress", "decompress", "maxCompressedSize"]) {

    53     try {

    54       do_print("Checking the existence of " + k + "\n");

    55       do_check_true(!!Internals[k]);

    56       do_print(k + " exists");

    57     } catch (ex) {

    58       // Ignore errors

    59       do_print(k + " doesn't exist!");

    60     }

    61   }

    62 }

    64 function test_reference_file() {

    65   do_print("Decompress reference file");

    66   let path = OS.Path.join("data", "compression.lz");

    67   let data = OS.File.read(path);

    68   let decompressed = Lz4.decompressFileContent(data);

    69   let text = (new TextDecoder()).decode(decompressed);

    70   do_check_eq(text, "Hello, lz4");

    71 }

    73 function compare_arrays(a, b) {

    74   return Array.prototype.join.call(a) == Array.prototype.join.call(a);

    75 }

    77 function run_rawcompression(name, array) {

    78   do_print("Raw compression test " + name);

    79   let length = array.byteLength;

    80   let compressedArray = new Uint8Array(Internals.maxCompressedSize(length));

    81   let compressedBytes = Internals.compress(array, length, compressedArray);

    82   compressedArray = new Uint8Array(compressedArray.buffer, 0, compressedBytes);

    83   do_print("Raw compressed: " + length + " into " + compressedBytes);

    85   let decompressedArray = new Uint8Array(length);

    86   let decompressedBytes = new ctypes.size_t();

    87   let success = Internals.decompress(compressedArray, compressedBytes,

    88                                      decompressedArray, length,

    89                                      decompressedBytes.address());

    90   do_print("Raw decompression success? " + success);

    91   do_print("Raw decompression size: " + decompressedBytes.value);

    92   do_check_true(compare_arrays(array, decompressedArray));

    93 }

    95 function run_filecompression(name, array) {

    96   do_print("File compression test " + name);

    97   let compressed = Lz4.compressFileContent(array);

    98   do_print("Compressed " + array.byteLength + " bytes into " + compressed.byteLength);

   100   let decompressed = Lz4.decompressFileContent(compressed);

   101   do_print("Decompressed " + compressed.byteLength + " bytes into " + decompressed.byteLength);

   102   do_check_true(compare_arrays(array, decompressed));

   103 }

   105 function run_faileddecompression(name, array) {

   106   do_print("invalid decompression test " + name);

   108   // Ensure that raw decompression doesn't segfault

   109   let length = 1 << 14;

   110   let decompressedArray = new Uint8Array(length);

   111   let decompressedBytes = new ctypes.size_t();

   112   Internals.decompress(array, array.byteLength,

   113     decompressedArray, length,

   114     decompressedBytes.address());

   116   // File decompression should fail with an acceptable exception

   117   let exn = null;

   118   try {

   119     Lz4.decompressFileContent(array);

   120   } catch (ex) {

   121     exn = ex;

   122   }

   123   do_check_true(exn);

   124   if (array.byteLength < 10) {

   125     do_check_true(exn.becauseLZNoHeader);

   126   } else {

   127     do_check_true(exn.becauseLZWrongMagicNumber);

   128   }

   129 }

   131 function run_test() {

   132   test_import();

   133   test_bound();

   134   test_reference_file();

   135   for (let length of [0, 1, 1024]) {

   136     let array = new Uint8Array(length);

   137     for (let i = 0; i < length; ++i) {

   138       array[i] = i % 256;

   139     }

   140     let name = length + " bytes";

   141     run_rawcompression(name, array);

   142     run_filecompression(name, array);

   143     run_faileddecompression(name, array);

   144   }

   145   do_test_complete();

   146 }

The Tor Browser / file revision