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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);
+ }
+}