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

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

addon-sdk/source/test/test-cortex.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";
 var Cortex = require("sdk/deprecated/cortex").Cortex;
 exports["test property changes propagate"] = function (assert) {
   var source = {
     _foo: "secret",
     get foo() {
       return this._foo;
     },
     set foo(value) {
       this._foo = value;
     },
     get getOnly() {
       return this._foo;
     },
     set setOnly(value) {
       this._setOnly = value;
     },
     bar: "public",
     method: function method(a, b) {
       return this._foo + a + b
     }
   };
   var fixture = Cortex(source);
   assert.ok(!('_foo' in fixture),
             "properties that start with `_` are omitted");
   assert.equal(fixture.foo, "secret", "get accessor alias works");
   fixture.foo = "new secret";
   assert.equal(fixture.foo, "new secret", "set accessor alias works");
   assert.equal(source.foo, "new secret", "accessor delegates to the source");
   assert.equal(fixture.bar, "public", "data property alias works");
   fixture.bar = "bar";
   assert.equal(source.bar, "bar", "data property change propagates");
   source.bar = "foo"
   assert.equal(fixture.bar, "foo", "data property change probagets back");
   assert.equal(fixture.method("a", "b"), "new secretab",
                "public methods are callable");
   assert.equal(fixture.method.call({ _foo: "test" }, " a,", "b"),
                "new secret a,b",
                "`this` pseudo-variable can not be passed through call.");
   assert.equal(fixture.method.apply({ _foo: "test" }, [" a,", "b"]),
                "new secret a,b",
                "`this` pseudo-variable can not be passed through apply.");
   assert.equal(fixture.getOnly, source._foo,
                "getter returned property of wrapped object");
   fixture.setOnly = 'bar'
   assert.equal(source._setOnly, 'bar', "setter modified wrapped object")
 };
 exports["test immunity of inheritance"] = function(assert) {
   function Type() {}
   Type.prototype = {
     constructor: Type,
     _bar: 2,
     bar: 3,
     get_Foo: function getFoo() {
       return this._foo;
     }
   }
   var source = Object.create(Type.prototype, {
     _foo: { value: 'secret' },
     getBar: { value: function get_Bar() {
       return this.bar
     }},
     get_Bar: { value: function getBar() {
       return this._bar
     }}
   });
   var fixture = Cortex(source);
   assert.ok(Cortex({}, null, Type.prototype) instanceof Type,
             "if custom prototype is providede cortex will inherit from it");
   assert.ok(fixture instanceof Type,
             "if no prototype is given cortex inherits from object's prototype");
   source.bar += 1;
   assert.notEqual(fixture.bar, source.bar,
                   "chages of properties don't propagate to non-aliases");
   assert.equal(fixture.getBar(), source.bar,
                "methods accessing public properties are bound to the source");
   fixture._bar += 1;
   assert.notEqual(fixture._bar, source._bar,
                   "changes of non aliased properties don't propagate");
   assert.equal(fixture.get_Bar(), source._bar,
                "methods accessing privates are bound to the source");
   assert.notEqual(fixture.get_Foo(), source._foo,
                   "prototoype methods are not bound to the source");
 }
 exports["test customized public properties"] = function(assert) {
   var source = {
     _a: 'a',
     b: 'b',
     get: function get(name) {
       return this[name];
     }
   };
   var fixture = Cortex(source, ['_a', 'get']);
   fixture._a += "#change";
   assert.ok(!("b" in fixture), "non-public own property is not defined");
   assert.equal(fixture.get("b"), source.b,
               "public methods preserve access to the private properties");
   assert.equal(fixture._a, source._a,
               "custom public property changes propagate");
 }
 //if (require.main == module)
   require("test").run(exports);