michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: "use strict";
michael@0: 
michael@0: const { isWeak, WeakReference } = require("sdk/core/reference");
michael@0: const { Class } = require("sdk/core/heritage");
michael@0: 
michael@0: exports["test non WeakReferences"] = assert => {
michael@0:   assert.equal(isWeak({}), false,
michael@0:                "regular objects aren't weak");
michael@0: 
michael@0:   assert.equal(isWeak([]), false,
michael@0:                "arrays aren't weak");
michael@0: };
michael@0: 
michael@0: exports["test a WeakReference"] = assert => {
michael@0:   assert.equal(isWeak(new WeakReference()), true,
michael@0:                "instances of WeakReferences are weak");
michael@0: };
michael@0: 
michael@0: exports["test a subclass"] = assert => {
michael@0:   const SubType = Class({
michael@0:     extends: WeakReference,
michael@0:     foo: function() {
michael@0:     }
michael@0:   });
michael@0: 
michael@0:   const x = new SubType();
michael@0:   assert.equal(isWeak(x), true,
michael@0:                "subtypes of WeakReferences are weak");
michael@0: 
michael@0:   const SubSubType = Class({
michael@0:     extends: SubType
michael@0:   });
michael@0: 
michael@0:   const y = new SubSubType();
michael@0:   assert.equal(isWeak(y), true,
michael@0:                "sub subtypes of WeakReferences are weak");
michael@0: };
michael@0: 
michael@0: exports["test a mixin"] = assert => {
michael@0:   const Mixer = Class({
michael@0:     implements: [WeakReference]
michael@0:   });
michael@0: 
michael@0:   assert.equal(isWeak(new Mixer()), true,
michael@0:                "instances with mixed WeakReference are weak");
michael@0: 
michael@0:   const Mux = Class({});
michael@0:   const MixMux = Class({
michael@0:     extends: Mux,
michael@0:     implements: [WeakReference]
michael@0:   });
michael@0: 
michael@0:   assert.equal(isWeak(new MixMux()), true,
michael@0:                "instances with mixed WeakReference that " +
michael@0:                "inheret from other are weak");
michael@0: 
michael@0: 
michael@0:   const Base = Class({});
michael@0:   const ReMix = Class({
michael@0:     extends: Base,
michael@0:     implements: [MixMux]
michael@0:   });
michael@0: 
michael@0:   assert.equal(isWeak(new ReMix()), true,
michael@0:                "subtime of mix is still weak");
michael@0: };
michael@0: 
michael@0: exports["test an override"] = assert => {
michael@0:   const SubType = Class({ extends: WeakReference });
michael@0:   isWeak.define(SubType, x => false);
michael@0: 
michael@0:   assert.equal(isWeak(new SubType()), false,
michael@0:                "behavior of isWeak can still be overrided on subtype");
michael@0: 
michael@0:   const Mixer = Class({ implements: [WeakReference] });
michael@0:   const SubMixer = Class({ extends: Mixer });
michael@0:   isWeak.define(SubMixer, x => false);
michael@0:   assert.equal(isWeak(new SubMixer()), false,
michael@0:                "behavior of isWeak can still be overrided on mixed type");
michael@0: };
michael@0: 
michael@0: exports["test an opt-in"] = assert => {
michael@0:   var BaseType = Class({});
michael@0:   var SubType = Class({ extends: BaseType });
michael@0: 
michael@0:   isWeak.define(SubType, x => true);
michael@0:   assert.equal(isWeak(new SubType()), true,
michael@0:                "isWeak can be just implemented");
michael@0: 
michael@0:   var x = {};
michael@0:   isWeak.implement(x, x => true);
michael@0:   assert.equal(isWeak(x), true,
michael@0:                "isWeak can be implemented per instance");
michael@0: };
michael@0: 
michael@0: require("sdk/test").run(exports);