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toolkit/components/osfile/tests/xpcshell/test_unique.js@6474c204b198 (annotated)

toolkit/components/osfile/tests/xpcshell/test_unique.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.

michael@0	1	"use strict";
michael@0	2
michael@0	3	Components.utils.import("resource://gre/modules/osfile.jsm");
michael@0	4	Components.utils.import("resource://gre/modules/Task.jsm");
michael@0	5
michael@0	6	function run_test() {
michael@0	7	do_get_profile();
michael@0	8	run_next_test();
michael@0	9	}
michael@0	10
michael@0	11	function testFiles(filename) {
michael@0	12	return Task.spawn(function() {
michael@0	13	const MAX_TRIES = 10;
michael@0	14	let profileDir = OS.Constants.Path.profileDir;
michael@0	15	let path = OS.Path.join(profileDir, filename);
michael@0	16
michael@0	17	// Ensure that openUnique() uses the file name if there is no file with that name already.
michael@0	18	let openedFile = yield OS.File.openUnique(path);
michael@0	19	do_print("\nCreate new file: " + openedFile.path);
michael@0	20	yield openedFile.file.close();
michael@0	21	let exists = yield OS.File.exists(openedFile.path);
michael@0	22	do_check_true(exists);
michael@0	23	do_check_eq(path, openedFile.path);
michael@0	24	let fileInfo = yield OS.File.stat(openedFile.path);
michael@0	25	do_check_true(fileInfo.size == 0);
michael@0	26
michael@0	27	// Ensure that openUnique() creates a new file name using a HEX number, as the original name is already taken.
michael@0	28	openedFile = yield OS.File.openUnique(path);
michael@0	29	do_print("\nCreate unique HEX file: " + openedFile.path);
michael@0	30	yield openedFile.file.close();
michael@0	31	exists = yield OS.File.exists(openedFile.path);
michael@0	32	do_check_true(exists);
michael@0	33	let fileInfo = yield OS.File.stat(openedFile.path);
michael@0	34	do_check_true(fileInfo.size == 0);
michael@0	35
michael@0	36	// Ensure that openUnique() generates different file names each time, using the HEX number algorithm
michael@0	37	let filenames = new Set();
michael@0	38	for (let i=0; i < MAX_TRIES; i++) {
michael@0	39	openedFile = yield OS.File.openUnique(path);
michael@0	40	yield openedFile.file.close();
michael@0	41	filenames.add(openedFile.path);
michael@0	42	}
michael@0	43
michael@0	44	do_check_eq(filenames.size, MAX_TRIES);
michael@0	45
michael@0	46	// Ensure that openUnique() creates a new human readable file name using, as the original name is already taken.
michael@0	47	openedFile = yield OS.File.openUnique(path, {humanReadable : true});
michael@0	48	do_print("\nCreate unique Human Readable file: " + openedFile.path);
michael@0	49	yield openedFile.file.close();
michael@0	50	exists = yield OS.File.exists(openedFile.path);
michael@0	51	do_check_true(exists);
michael@0	52	let fileInfo = yield OS.File.stat(openedFile.path);
michael@0	53	do_check_true(fileInfo.size == 0);
michael@0	54
michael@0	55	// Ensure that openUnique() generates different human readable file names each time
michael@0	56	filenames = new Set();
michael@0	57	for (let i=0; i < MAX_TRIES; i++) {
michael@0	58	openedFile = yield OS.File.openUnique(path, {humanReadable : true});
michael@0	59	yield openedFile.file.close();
michael@0	60	filenames.add(openedFile.path);
michael@0	61	}
michael@0	62
michael@0	63	do_check_eq(filenames.size, MAX_TRIES);
michael@0	64
michael@0	65	let exn;
michael@0	66	try {
michael@0	67	for (let i=0; i < 100; i++) {
michael@0	68	openedFile = yield OS.File.openUnique(path, {humanReadable : true});
michael@0	69	yield openedFile.file.close();
michael@0	70	}
michael@0	71	} catch (ex) {
michael@0	72	exn = ex;
michael@0	73	}
michael@0	74
michael@0	75	do_print("Ensure that this raises the correct error");
michael@0	76	do_check_true(!!exn);
michael@0	77	do_check_true(exn instanceof OS.File.Error);
michael@0	78	do_check_true(exn.becauseExists);
michael@0	79	});
michael@0	80	}
michael@0	81
michael@0	82	add_task(function test_unique() {
michael@0	83	OS.Shared.DEBUG = true;
michael@0	84	// Tests files with extension
michael@0	85	yield testFiles("dummy_unique_file.txt");
michael@0	86	// Tests files with no extension
michael@0	87	yield testFiles("dummy_unique_file_no_ext");
michael@0	88	});