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