forked from mirrors/gecko-dev
4a06c925ac
# ignore-this-changeset Differential Revision: https://phabricator.services.mozilla.com/D36052 --HG-- extra : source : b5be5b4f4b47c256e28a29f665dc754f6407ee7f
109 lines
3 KiB
JavaScript
109 lines
3 KiB
JavaScript
"use strict";
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const { OS } = ChromeUtils.import("resource://gre/modules/osfile.jsm");
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const { FileUtils } = ChromeUtils.import(
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"resource://gre/modules/FileUtils.jsm"
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);
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const { NetUtil } = ChromeUtils.import("resource://gre/modules/NetUtil.jsm");
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function run_test() {
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do_test_pending();
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run_next_test();
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}
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/**
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* A file that we know exists and that can be used for reading.
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*/
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var EXISTING_FILE = "test_osfile_async_copy.js";
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/**
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* Fetch asynchronously the contents of a file using xpcom.
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*
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* Used for comparing xpcom-based results to os.file-based results.
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*
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* @param {string} path The _absolute_ path to the file.
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* @return {promise}
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* @resolves {string} The contents of the file.
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*/
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var reference_fetch_file = function reference_fetch_file(path) {
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return new Promise((resolve, reject) => {
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let file = new FileUtils.File(path);
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NetUtil.asyncFetch(
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{
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uri: NetUtil.newURI(file),
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loadUsingSystemPrincipal: true,
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},
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function(stream, status) {
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if (!Components.isSuccessCode(status)) {
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reject(status);
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return;
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}
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let result, reject;
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try {
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result = NetUtil.readInputStreamToString(stream, stream.available());
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} catch (x) {
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reject = x;
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}
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stream.close();
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if (reject) {
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reject(reject);
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} else {
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resolve(result);
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}
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}
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);
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});
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};
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/**
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* Compare asynchronously the contents two files using xpcom.
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*
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* Used for comparing xpcom-based results to os.file-based results.
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*
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* @param {string} a The _absolute_ path to the first file.
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* @param {string} b The _absolute_ path to the second file.
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*
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* @resolves {null}
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*/
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var reference_compare_files = async function reference_compare_files(a, b) {
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let a_contents = await reference_fetch_file(a);
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let b_contents = await reference_fetch_file(b);
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// Not using do_check_eq to avoid dumping the whole file to the log.
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// It is OK to === compare here, as both variables contain a string.
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Assert.ok(a_contents === b_contents);
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};
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/**
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* Test to ensure that OS.File.copy works.
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*/
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async function test_copymove(options = {}) {
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let source = OS.Path.join(await OS.File.getCurrentDirectory(), EXISTING_FILE);
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let dest = OS.Path.join(
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OS.Constants.Path.tmpDir,
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"test_osfile_async_copy_dest.tmp"
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);
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let dest2 = OS.Path.join(
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OS.Constants.Path.tmpDir,
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"test_osfile_async_copy_dest2.tmp"
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);
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try {
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// 1. Test copy.
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await OS.File.copy(source, dest, options);
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await reference_compare_files(source, dest);
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// 2. Test subsequent move.
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await OS.File.move(dest, dest2);
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await reference_compare_files(source, dest2);
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// 3. Check that the moved file was really moved.
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Assert.equal(await OS.File.exists(dest), false);
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} finally {
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await removeTestFile(dest);
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await removeTestFile(dest2);
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}
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}
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// Regular copy test.
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add_task(test_copymove);
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// Userland copy test.
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add_task(test_copymove.bind(null, { unixUserland: true }));
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add_task(do_test_finished);
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