forked from mirrors/gecko-dev
4a06c925ac
# ignore-this-changeset Differential Revision: https://phabricator.services.mozilla.com/D36052 --HG-- extra : source : b5be5b4f4b47c256e28a29f665dc754f6407ee7f
75 lines
2.3 KiB
JavaScript
75 lines
2.3 KiB
JavaScript
/* Any copyright is dedicated to the Public Domain.
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* http://creativecommons.org/publicdomain/zero/1.0/ */
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"use strict";
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const { OS } = ChromeUtils.import("resource://gre/modules/osfile.jsm");
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/**
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* Test OS.File.open for reading:
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* - with an existing file (should succeed);
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* - with a non-existing file (should fail);
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* - with inconsistent arguments (should fail).
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*/
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add_task(async function() {
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// Attempt to open a file that does not exist, ensure that it yields the
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// appropriate error.
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try {
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await OS.File.open(OS.Path.join(".", "This file does not exist"));
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Assert.ok(false, "File opening 1 succeeded (it should fail)");
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} catch (err) {
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if (err instanceof OS.File.Error && err.becauseNoSuchFile) {
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info("File opening 1 failed " + err);
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} else {
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throw err;
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}
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}
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// Attempt to open a file with the wrong args, so that it fails before
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// serialization, ensure that it yields the appropriate error.
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info("Attempting to open a file with wrong arguments");
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try {
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let fd = await OS.File.open(1, 2, 3);
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Assert.ok(false, "File opening 2 succeeded (it should fail)" + fd);
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} catch (err) {
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info("File opening 2 failed " + err);
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Assert.equal(
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false,
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err instanceof OS.File.Error,
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"File opening 2 returned something that is not a file error"
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);
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Assert.ok(
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err.constructor.name == "TypeError",
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"File opening 2 returned a TypeError"
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);
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}
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// Attempt to open a file correctly
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info("Attempting to open a file correctly");
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let openedFile = await OS.File.open(
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OS.Path.join(do_get_cwd().path, "test_open.js")
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);
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info("File opened correctly");
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info("Attempting to close a file correctly");
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await openedFile.close();
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info("Attempting to close a file again");
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await openedFile.close();
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});
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/**
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* Test the error thrown by OS.File.open when attempting to open a directory
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* that does not exist.
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*/
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add_task(async function test_error_attributes() {
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let dir = OS.Path.join(do_get_profile().path, "test_osfileErrorAttrs");
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let fpath = OS.Path.join(dir, "test_error_attributes.txt");
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try {
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await OS.File.open(fpath, { truncate: true }, {});
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Assert.ok(false, "Opening path suceeded (it should fail) " + fpath);
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} catch (err) {
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Assert.ok(err instanceof OS.File.Error);
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Assert.ok(err.becauseNoSuchFile);
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}
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});
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