The Tor Browser: addon-sdk/source/test/traits/inheritance-tests.js@6474c204b198 (annotated)

addon-sdk/source/test/traits/inheritance-tests.js@6474c204b198 (annotated)

addon-sdk/source/test/traits/inheritance-tests.js

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* 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 Trait = require("sdk/deprecated/light-traits").Trait;
 exports["test custom constructor and inherited toString"] = function(assert) {
   function Type() {
     return Object.create(Type.prototype);
   }
   Type.prototype = Trait({
     method: function method() {
       return 2;
     }
   }).create(Object.freeze(Type.prototype));
   var fixture = Type();
   assert.equal(fixture.constructor, Type, "must override constructor");
   assert.equal(fixture.toString(), "[object Type]", "must inherit toString");
 };
 exports["test custom toString and inherited constructor"] = function(assert) {
   function Type() {
     return Object.create(Type.prototype);
   }
   Type.prototype = Trait({
     toString: function toString() {
       return "<toString>";
     }
   }).create();
   var fixture = Type();
   assert.equal(fixture.constructor, Trait, "must inherit constructor Trait");
   assert.equal(fixture.toString(), "<toString>", "Must override toString");
 };
 exports["test custom toString and constructor"] = function(assert) {
   function Type() {
     return TypeTrait.create(Type.prototype);
   }
   Object.freeze(Type.prototype);
   var TypeTrait = Trait({
     toString: function toString() {
       return "<toString>";
     }
   });
   var fixture = Type();
   assert.equal(fixture.constructor, Type, "constructor is provided to create");
   assert.equal(fixture.toString(), "<toString>", "toString was overridden");
 };
 exports["test resolve constructor"] = function (assert) {
   function Type() {}
   var T1 = Trait({ constructor: Type }).resolve({ constructor: '_foo' });
   var f1 = T1.create();
   assert.equal(f1._foo, Type, "constructor was resolved");
   assert.equal(f1.constructor, Trait, "constructor of prototype is inherited");
   assert.equal(f1.toString(), "[object Trait]", "toString is inherited");
 };
 exports["test compose read-only"] = function (assert) {
   function Type() {}
   Type.prototype = Trait.compose(Trait({}), {
     constructor: { value: Type },
     a: { value: "b", enumerable: true }
   }).resolve({ a: "b" }).create({ a: "a" });
   var f1 = new Type();
   assert.equal(Object.getPrototypeOf(f1), Type.prototype, "inherits correctly");
   assert.equal(f1.constructor, Type, "constructor was overridden");
   assert.equal(f1.toString(), "[object Type]", "toString was inherited");
   assert.equal(f1.a, "a", "property a was resolved");
   assert.equal(f1.b, "b", "property a was renamed to b");
   assert.ok(!Object.getOwnPropertyDescriptor(Type.prototype, "a"),
             "a is not on the prototype of the instance");
   var proto = Object.getPrototypeOf(Type.prototype);
   var dc = Object.getOwnPropertyDescriptor(Type.prototype, "constructor");
   var db = Object.getOwnPropertyDescriptor(Type.prototype, "b");
   var da = Object.getOwnPropertyDescriptor(proto, "a");
   assert.ok(!dc.writable, "constructor is not writable");
   assert.ok(!dc.enumerable, "constructor is not enumerable");
   assert.ok(dc.configurable, "constructor inherits configurability");
   assert.ok(!db.writable, "a -> b is not writable");
   assert.ok(db.enumerable, "a -> b is enumerable");
   assert.ok(!db.configurable, "a -> b is not configurable");
   assert.ok(da.writable, "a is writable");
   assert.ok(da.enumerable, "a is enumerable");
   assert.ok(da.configurable, "a is configurable");
 };
 if (require.main == module)
   require("test").run(exports);