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/* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
const { OS } = ChromeUtils.import("resource://gre/modules/osfile.jsm");
/**
* Test OS.File.open for reading:
* - with an existing file (should succeed);
* - with a non-existing file (should fail);
* - with inconsistent arguments (should fail).
*/
add_task(async function() {
// Attempt to open a file that does not exist, ensure that it yields the
// appropriate error.
try {
await OS.File.open(OS.Path.join(".", "This file does not exist"));
Assert.ok(false, "File opening 1 succeeded (it should fail)");
} catch (err) {
if (err instanceof OS.File.Error && err.becauseNoSuchFile) {
info("File opening 1 failed " + err);
} else {
throw err;
}
}
// Attempt to open a file with the wrong args, so that it fails before
// serialization, ensure that it yields the appropriate error.
info("Attempting to open a file with wrong arguments");
try {
let fd = await OS.File.open(1, 2, 3);
Assert.ok(false, "File opening 2 succeeded (it should fail)" + fd);
} catch (err) {
info("File opening 2 failed " + err);
Assert.equal(
false,
err instanceof OS.File.Error,
"File opening 2 returned something that is not a file error"
);
Assert.ok(
err.constructor.name == "TypeError",
"File opening 2 returned a TypeError"
);
}
// Attempt to open a file correctly
info("Attempting to open a file correctly");
let openedFile = await OS.File.open(
OS.Path.join(do_get_cwd().path, "test_open.js")
);
info("File opened correctly");
info("Attempting to close a file correctly");
await openedFile.close();
info("Attempting to close a file again");
await openedFile.close();
});
/**
* Test the error thrown by OS.File.open when attempting to open a directory
* that does not exist.
*/
add_task(async function test_error_attributes() {
let dir = OS.Path.join(do_get_profile().path, "test_osfileErrorAttrs");
let fpath = OS.Path.join(dir, "test_error_attributes.txt");
try {
await OS.File.open(fpath, { truncate: true }, {});
Assert.ok(false, "Opening path suceeded (it should fail) " + fpath);
} catch (err) {
Assert.ok(err instanceof OS.File.Error);
Assert.ok(err.becauseNoSuchFile);
}
});
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