gecko-dev/dom/devicestorage/test/devicestorage_common.js

80 lines
2.2 KiB
JavaScript

/**
* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/
*/
var oldVal = false;
Object.defineProperty(Array.prototype, "remove", {
enumerable: false,
configurable: false,
writable: false,
value: function(from, to) {
// Array Remove - By John Resig (MIT Licensed)
var rest = this.slice((to || from) + 1 || this.length);
this.length = from < 0 ? this.length + from : from;
return this.push.apply(this, rest);
}
});
function devicestorage_setup() {
// ensure that the directory we are writing into is empty
try {
const Cc = SpecialPowers.Cc;
const Ci = SpecialPowers.Ci;
var directoryService = Cc["@mozilla.org/file/directory_service;1"].getService(Ci.nsIProperties);
var f = directoryService.get("TmpD", Ci.nsIFile);
f.appendRelativePath("device-storage-testing");
f.remove(true);
} catch(e) {}
SimpleTest.waitForExplicitFinish();
if (SpecialPowers.isMainProcess()) {
try {
oldVal = SpecialPowers.getBoolPref("device.storage.enabled");
} catch(e) {}
SpecialPowers.setBoolPref("device.storage.enabled", true);
SpecialPowers.setBoolPref("device.storage.testing", true);
SpecialPowers.setBoolPref("device.storage.prompt.testing", true);
}
}
function devicestorage_cleanup() {
if (SpecialPowers.isMainProcess()) {
SpecialPowers.setBoolPref("device.storage.enabled", oldVal);
SpecialPowers.setBoolPref("device.storage.testing", false);
SpecialPowers.setBoolPref("device.storage.prompt.testing", false);
}
SimpleTest.finish();
}
function getRandomBuffer() {
var size = 1024;
var buffer = new ArrayBuffer(size);
var view = new Uint8Array(buffer);
for (var i = 0; i < size; i++) {
view[i] = parseInt(Math.random() * 255);
}
return buffer;
}
function createRandomBlob(mime) {
return blob = new Blob([getRandomBuffer()], {type: mime});
}
function randomFilename(l) {
var set = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZ";
var result = "";
for (var i=0; i<l; i++) {
var r = Math.floor(set.length * Math.random());
result += set.substring(r, r + 1);
}
return result;
}
function reportErrorAndQuit(e) {
ok(false, "handleError was called : " + e.target.error.name);
devicestorage_cleanup();
}