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