forked from mirrors/gecko-dev
87 lines
2.9 KiB
JavaScript
87 lines
2.9 KiB
JavaScript
"use strict";
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const { OS } = ChromeUtils.import("resource://gre/modules/osfile.jsm");
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function run_test() {
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do_get_profile();
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run_next_test();
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}
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function testFiles(filename) {
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return (async function() {
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const MAX_TRIES = 10;
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let profileDir = OS.Constants.Path.profileDir;
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let path = OS.Path.join(profileDir, filename);
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// Ensure that openUnique() uses the file name if there is no file with that name already.
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let openedFile = await OS.File.openUnique(path);
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info("\nCreate new file: " + openedFile.path);
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await openedFile.file.close();
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let exists = await OS.File.exists(openedFile.path);
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Assert.ok(exists);
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Assert.equal(path, openedFile.path);
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let fileInfo = await OS.File.stat(openedFile.path);
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Assert.ok(fileInfo.size == 0);
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// Ensure that openUnique() creates a new file name using a HEX number, as the original name is already taken.
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openedFile = await OS.File.openUnique(path);
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info("\nCreate unique HEX file: " + openedFile.path);
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await openedFile.file.close();
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exists = await OS.File.exists(openedFile.path);
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Assert.ok(exists);
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fileInfo = await OS.File.stat(openedFile.path);
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Assert.ok(fileInfo.size == 0);
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// Ensure that openUnique() generates different file names each time, using the HEX number algorithm
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let filenames = new Set();
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for (let i = 0; i < MAX_TRIES; i++) {
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openedFile = await OS.File.openUnique(path);
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await openedFile.file.close();
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filenames.add(openedFile.path);
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}
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Assert.equal(filenames.size, MAX_TRIES);
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// Ensure that openUnique() creates a new human readable file name using, as the original name is already taken.
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openedFile = await OS.File.openUnique(path, { humanReadable: true });
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info("\nCreate unique Human Readable file: " + openedFile.path);
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await openedFile.file.close();
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exists = await OS.File.exists(openedFile.path);
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Assert.ok(exists);
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fileInfo = await OS.File.stat(openedFile.path);
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Assert.ok(fileInfo.size == 0);
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// Ensure that openUnique() generates different human readable file names each time
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filenames = new Set();
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for (let i = 0; i < MAX_TRIES; i++) {
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openedFile = await OS.File.openUnique(path, { humanReadable: true });
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await openedFile.file.close();
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filenames.add(openedFile.path);
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}
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Assert.equal(filenames.size, MAX_TRIES);
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let exn;
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try {
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for (let i = 0; i < 100; i++) {
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openedFile = await OS.File.openUnique(path, { humanReadable: true });
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await openedFile.file.close();
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}
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} catch (ex) {
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exn = ex;
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}
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info("Ensure that this raises the correct error");
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Assert.ok(!!exn);
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Assert.ok(exn instanceof OS.File.Error);
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Assert.ok(exn.becauseExists);
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})();
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}
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add_task(async function test_unique() {
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OS.Shared.DEBUG = true;
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// Tests files with extension
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await testFiles("dummy_unique_file.txt");
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// Tests files with no extension
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await testFiles("dummy_unique_file_no_ext");
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});
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