The Tor Browser: addon-sdk/source/test/test-weak-set.js@ac0c01689b40 (annotated)

addon-sdk/source/test/test-weak-set.js@ac0c01689b40 (annotated)

addon-sdk/source/test/test-weak-set.js

Thu, 15 Jan 2015 15:59:08 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 15 Jan 2015 15:59:08 +0100
branch: TOR_BUG_9701
changeset 10: ac0c01689b40
permissions: -rw-r--r--

Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 'use strict';
 const { Cu } = require('chrome');
 const { Loader } = require('sdk/test/loader');
 const { defer } = require('sdk/core/promise');
 function gc() {
   let { promise, resolve } = defer();
   Cu.schedulePreciseGC(resolve);
   return promise;
 };
 exports['test adding item'] = function(assert, done) {
   let loader = Loader(module);
   let { add, remove, has, clear, iterator } = loader.require('sdk/lang/weak-set');
   let items = {};
   let item = {};
   add(items, item);
   gc().
     then(() => {
       assert.ok(has(items, item),
         'the item is in the weak set');
     }).
     then(loader.unload).
     then(done, assert.fail);
 };
 exports['test remove item'] = function(assert, done) {
   let loader = Loader(module);
   let { add, remove, has, clear, iterator } = loader.require('sdk/lang/weak-set');
   let items = {};
   let item = {};
   add(items, item);
   remove(items, item);
   gc().
     then(() => {
       assert.ok(!has(items, item),
         'the item is not in weak set');
     }).
     then(loader.unload).
     then(done, assert.fail);
 };
 exports['test iterate'] = function(assert, done) {
   let loader = Loader(module);
   let { add, remove, has, clear, iterator } = loader.require('sdk/lang/weak-set');
   let items = {};
   let addedItems = [{}, {}];
   add(items, addedItems[0]);
   add(items, addedItems[1]);
   add(items, addedItems[0]); // weak set shouldn't add this twice
   gc().
     then(() => {
       let count = 0;
       for (let item of iterator(items)) {
         assert.equal(item, addedItems[count],
           'item in the expected order');
         count++;
       }
       assert.equal(count, 2,
         'items in the expected number');
     }).
     then(loader.unload).
     then(done, assert.fail);
 };
 exports['test clear'] = function(assert, done) {
   let loader = Loader(module);
   let { add, remove, has, clear, iterator } = loader.require('sdk/lang/weak-set');
   let items = {};
   let addedItems = [{}, {}];
   add(items, addedItems[0]);
   add(items, addedItems[1]);
   clear(items)
   gc().
     then(() => {
       let count = 0;
       for (let item of iterator(items))
         assert.fail('the loop should not be executed');
       assert.equal(count, 0,
         'no items in the weak set');
     }).
     then(loader.unload).
     then(done, assert.fail);
 };
 exports['test adding item without reference'] = function(assert, done) {
   let loader = Loader(module);
   let { add, remove, has, clear, iterator } = loader.require('sdk/lang/weak-set');
   let items = {};
   add(items, {});
   gc().
     then(() => {
       let count = 0;
       for (let item of iterator(items))
         assert.fail('the loop should not be executed');
       assert.equal(count, 0,
         'no items in the weak set');
     }).
     then(loader.unload).
     then(done, assert.fail);
 };
 exports['test adding non object or null item'] = function(assert) {
   let loader = Loader(module);
   let { add, remove, has, clear, iterator } = loader.require('sdk/lang/weak-set');
   let items = {};
   assert.throws(() => {
     add(items, 'foo');
   },
   /^value is not a non-null object/,
   'only non-null object are allowed');
   assert.throws(() => {
     add(items, 0);
   },
   /^value is not a non-null object/,
   'only non-null object are allowed');
   assert.throws(() => {
     add(items, undefined);
   },
   /^value is not a non-null object/,
   'only non-null object are allowed');
   assert.throws(() => {
     add(items, null);
   },
   /^value is not a non-null object/,
   'only non-null object are allowed');
   assert.throws(() => {
     add(items, true);
   },
   /^value is not a non-null object/,
   'only non-null object are allowed');
 };
 exports['test adding to non object or null item'] = function(assert) {
   let loader = Loader(module);
   let { add, remove, has, clear, iterator } = loader.require('sdk/lang/weak-set');
   let item = {};
   assert.throws(() => {
     add('foo', item);
   },
   /^value is not a non-null object/,
   'only non-null object are allowed');
   assert.throws(() => {
     add(0, item);
   },
   /^value is not a non-null object/,
   'only non-null object are allowed');
   assert.throws(() => {
     add(undefined, item);
   },
   /^value is not a non-null object/,
   'only non-null object are allowed');
   assert.throws(() => {
     add(null, item);
   },
   /^value is not a non-null object/,
   'only non-null object are allowed');
   assert.throws(() => {
     add(true, item);
   },
   /^value is not a non-null object/,
   'only non-null object are allowed');
 };
 require('test').run(exports);