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/* -*- indent-tabs-mode: nil; js-indent-level: 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.
*/
var Cc = Components.classes;
var Ci = Components.interfaces;
var Cu = Components.utils;
var 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, 0o755);
}
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);
}
}
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