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/* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
var {utils: Cu, interfaces: Ci} = Components;
var {XPCOMUtils} = Cu.import("resource://gre/modules/XPCOMUtils.jsm", {});
// Bug 1014484 can only be reproduced by loading OS.File first from the
// CommonJS loader, so we do not want OS.File to be loaded eagerly for
// all the tests in this directory.
XPCOMUtils.defineLazyModuleGetter(this, "OS",
"resource://gre/modules/osfile.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "FileUtils",
"resource://gre/modules/FileUtils.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "NetUtil",
"resource://gre/modules/NetUtil.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "Services",
"resource://gre/modules/Services.jsm");
var {Promise} = Cu.import("resource://gre/modules/Promise.jsm", {});
var {Task} = Cu.import("resource://gre/modules/Task.jsm", {});
Services.prefs.setBoolPref("toolkit.osfile.log", true);
/**
* As add_task, but execute the test both with native operations and
* without.
*/
function add_test_pair(generator) {
add_task(function*() {
do_print("Executing test " + generator.name + " with native operations");
Services.prefs.setBoolPref("toolkit.osfile.native", true);
return Task.spawn(generator);
});
add_task(function*() {
do_print("Executing test " + generator.name + " without native operations");
Services.prefs.setBoolPref("toolkit.osfile.native", false);
return Task.spawn(generator);
});
}
/**
* Fetch asynchronously the contents of a file using xpcom.
*
* Used for comparing xpcom-based results to os.file-based results.
*
* @param {string} path The _absolute_ path to the file.
* @return {promise}
* @resolves {string} The contents of the file.
*/
function reference_fetch_file(path, test) {
do_print("Fetching file " + path);
let deferred = Promise.defer();
let file = new FileUtils.File(path);
NetUtil.asyncFetch({
uri: NetUtil.newURI(file),
loadUsingSystemPrincipal: true
}, function(stream, status) {
if (!Components.isSuccessCode(status)) {
deferred.reject(status);
return;
}
let result, reject;
try {
result = NetUtil.readInputStreamToString(stream, stream.available());
} catch (x) {
reject = x;
}
stream.close();
if (reject) {
deferred.reject(reject);
} else {
deferred.resolve(result);
}
});
return deferred.promise;
};
/**
* Compare asynchronously the contents two files using xpcom.
*
* Used for comparing xpcom-based results to os.file-based results.
*
* @param {string} a The _absolute_ path to the first file.
* @param {string} b The _absolute_ path to the second file.
*
* @resolves {null}
*/
function reference_compare_files(a, b, test) {
return Task.spawn(function*() {
do_print("Comparing files " + a + " and " + b);
let a_contents = yield reference_fetch_file(a, test);
let b_contents = yield reference_fetch_file(b, test);
do_check_eq(a_contents, b_contents);
});
};
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