The Tor Browser: toolkit/mozapps/downloads/tests/unit/test_DownloadPaths.js@6474c204b198 (annotated)

toolkit/mozapps/downloads/tests/unit/test_DownloadPaths.js@6474c204b198 (annotated)

toolkit/mozapps/downloads/tests/unit/test_DownloadPaths.js

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* vim: set ts=2 et sw=2 tw=80 filetype=javascript: */
 /* ***** BEGIN LICENSE BLOCK *****
  *
  * Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/
  *
  * ***** END LICENSE BLOCK ***** */
 /**
  * Tests for the "DownloadPaths.jsm" JavaScript module.
  */
 const Cc = Components.classes;
 const Ci = Components.interfaces;
 const Cu = Components.utils;
 const Cr = Components.results;
 Cu.import("resource://gre/modules/DownloadPaths.jsm");
 /**
  * Provides a temporary save directory.
  *
  * @returns nsIFile pointing to the new or existing directory.
  */
 function createTemporarySaveDirectory()
 {
   var saveDir = Cc["@mozilla.org/file/directory_service;1"].
                 getService(Ci.nsIProperties).get("TmpD", Ci.nsIFile);
   saveDir.append("testsavedir");
   if (!saveDir.exists()) {
     saveDir.create(Ci.nsIFile.DIRECTORY_TYPE, 0755);
   }
   return saveDir;
 }
 function testSplitBaseNameAndExtension(aLeafName, [aBase, aExt])
 {
   var [base, ext] = DownloadPaths.splitBaseNameAndExtension(aLeafName);
   do_check_eq(base, aBase);
   do_check_eq(ext, aExt);
   // If we modify the base name and concatenate it with the extension again,
   // another roundtrip through the function should give a consistent result.
   // The only exception is when we introduce an extension in a file name that
   // didn't have one or that ended with one of the special cases like ".gz". If
   // we avoid using a dot and we introduce at least another special character,
   // the results are always consistent.
   [base, ext] = DownloadPaths.splitBaseNameAndExtension("(" + base + ")" + ext);
   do_check_eq(base, "(" + aBase + ")");
   do_check_eq(ext, aExt);
 }
 function testCreateNiceUniqueFile(aTempFile, aExpectedLeafName)
 {
   var createdFile = DownloadPaths.createNiceUniqueFile(aTempFile);
   do_check_eq(createdFile.leafName, aExpectedLeafName);
 }
 function run_test()
 {
   // Usual file names.
   testSplitBaseNameAndExtension("base",             ["base", ""]);
   testSplitBaseNameAndExtension("base.ext",         ["base", ".ext"]);
   testSplitBaseNameAndExtension("base.application", ["base", ".application"]);
   testSplitBaseNameAndExtension("base.x.Z",         ["base", ".x.Z"]);
   testSplitBaseNameAndExtension("base.ext.Z",       ["base", ".ext.Z"]);
   testSplitBaseNameAndExtension("base.ext.gz",      ["base", ".ext.gz"]);
   testSplitBaseNameAndExtension("base.ext.Bz2",     ["base", ".ext.Bz2"]);
   testSplitBaseNameAndExtension("base..ext",        ["base.", ".ext"]);
   testSplitBaseNameAndExtension("base..Z",          ["base.", ".Z"]);
   testSplitBaseNameAndExtension("base. .Z",         ["base. ", ".Z"]);
   testSplitBaseNameAndExtension("base.base.Bz2",    ["base.base", ".Bz2"]);
   testSplitBaseNameAndExtension("base  .ext",       ["base  ", ".ext"]);
   // Corner cases. A name ending with a dot technically has no extension, but
   // we consider the ending dot separately from the base name so that modifying
   // the latter never results in an extension being introduced accidentally.
   // Names beginning with a dot are hidden files on Unix-like platforms and if
   // their name doesn't contain another dot they should have no extension, but
   // on Windows the whole name is considered as an extension.
   testSplitBaseNameAndExtension("base.",            ["base", "."]);
   testSplitBaseNameAndExtension(".ext",             ["", ".ext"]);
   // Unusual file names (not recommended as input to the function).
   testSplitBaseNameAndExtension("base. ",           ["base", ". "]);
   testSplitBaseNameAndExtension("base ",            ["base ", ""]);
   testSplitBaseNameAndExtension("",                 ["", ""]);
   testSplitBaseNameAndExtension(" ",                [" ", ""]);
   testSplitBaseNameAndExtension(" . ",              [" ", ". "]);
   testSplitBaseNameAndExtension(" .. ",             [" .", ". "]);
   testSplitBaseNameAndExtension(" .ext",            [" ", ".ext"]);
   testSplitBaseNameAndExtension(" .ext. ",          [" .ext", ". "]);
   testSplitBaseNameAndExtension(" .ext.gz ",        [" .ext", ".gz "]);
   var destDir = createTemporarySaveDirectory();
   try {
     // Single extension.
     var tempFile = destDir.clone();
     tempFile.append("test.txt");
     testCreateNiceUniqueFile(tempFile, "test.txt");
     testCreateNiceUniqueFile(tempFile, "test(1).txt");
     testCreateNiceUniqueFile(tempFile, "test(2).txt");
     // Double extension.
     tempFile.leafName = "test.tar.gz";
     testCreateNiceUniqueFile(tempFile, "test.tar.gz");
     testCreateNiceUniqueFile(tempFile, "test(1).tar.gz");
     testCreateNiceUniqueFile(tempFile, "test(2).tar.gz");
     // Test automatic shortening of long file names. We don't know exactly how
     // many characters are removed, because it depends on the name of the folder
     // where the file is located.
     tempFile.leafName = new Array(256).join("T") + ".txt";
     var newFile = DownloadPaths.createNiceUniqueFile(tempFile);
     do_check_true(newFile.leafName.length < tempFile.leafName.length);
     do_check_eq(newFile.leafName.slice(-4), ".txt");
     // Creating a valid file name from an invalid one is not always possible.
     tempFile.append("file-under-long-directory.txt");
     try {
       DownloadPaths.createNiceUniqueFile(tempFile);
       do_throw("Exception expected with a long parent directory name.")
     } catch (e) {
       // An exception is expected, but we don't know which one exactly.
     }
   } finally {
     // Clean up the temporary directory.
     destDir.remove(true);
   }
 }