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: 
michael@0: "use strict";
michael@0: 
michael@0: var Trait = require("sdk/deprecated/light-traits").Trait;
michael@0: 
michael@0: exports["test custom constructor and inherited toString"] = function(assert) {
michael@0:   function Type() {
michael@0:     return Object.create(Type.prototype);
michael@0:   }
michael@0:   Type.prototype = Trait({
michael@0:     method: function method() {
michael@0:       return 2;
michael@0:     }
michael@0:   }).create(Object.freeze(Type.prototype));
michael@0: 
michael@0:   var fixture = Type();
michael@0: 
michael@0:   assert.equal(fixture.constructor, Type, "must override constructor");
michael@0:   assert.equal(fixture.toString(), "[object Type]", "must inherit toString");
michael@0: };
michael@0: 
michael@0: exports["test custom toString and inherited constructor"] = function(assert) {
michael@0:   function Type() {
michael@0:     return Object.create(Type.prototype);
michael@0:   }
michael@0:   Type.prototype = Trait({
michael@0:     toString: function toString() {
michael@0:       return "<toString>";
michael@0:     }
michael@0:   }).create();
michael@0: 
michael@0:   var fixture = Type();
michael@0: 
michael@0:   assert.equal(fixture.constructor, Trait, "must inherit constructor Trait");
michael@0:   assert.equal(fixture.toString(), "<toString>", "Must override toString");
michael@0: };
michael@0: 
michael@0: exports["test custom toString and constructor"] = function(assert) {
michael@0:   function Type() {
michael@0:     return TypeTrait.create(Type.prototype);
michael@0:   }
michael@0:   Object.freeze(Type.prototype);
michael@0:   var TypeTrait = Trait({
michael@0:     toString: function toString() {
michael@0:       return "<toString>";
michael@0:     }
michael@0:   });
michael@0: 
michael@0:   var fixture = Type();
michael@0: 
michael@0:   assert.equal(fixture.constructor, Type, "constructor is provided to create");
michael@0:   assert.equal(fixture.toString(), "<toString>", "toString was overridden");
michael@0: };
michael@0: 
michael@0: exports["test resolve constructor"] = function (assert) {
michael@0:   function Type() {}
michael@0:   var T1 = Trait({ constructor: Type }).resolve({ constructor: '_foo' });
michael@0:   var f1 = T1.create();
michael@0: 
michael@0:   assert.equal(f1._foo, Type, "constructor was resolved");
michael@0:   assert.equal(f1.constructor, Trait, "constructor of prototype is inherited");
michael@0:   assert.equal(f1.toString(), "[object Trait]", "toString is inherited");
michael@0: };
michael@0: 
michael@0: exports["test compose read-only"] = function (assert) {
michael@0:   function Type() {}
michael@0:   Type.prototype = Trait.compose(Trait({}), {
michael@0:     constructor: { value: Type },
michael@0:     a: { value: "b", enumerable: true }
michael@0:   }).resolve({ a: "b" }).create({ a: "a" });
michael@0: 
michael@0:   var f1 = new Type();
michael@0: 
michael@0:   assert.equal(Object.getPrototypeOf(f1), Type.prototype, "inherits correctly");
michael@0:   assert.equal(f1.constructor, Type, "constructor was overridden");
michael@0:   assert.equal(f1.toString(), "[object Type]", "toString was inherited");
michael@0:   assert.equal(f1.a, "a", "property a was resolved");
michael@0:   assert.equal(f1.b, "b", "property a was renamed to b");
michael@0:   assert.ok(!Object.getOwnPropertyDescriptor(Type.prototype, "a"),
michael@0:             "a is not on the prototype of the instance");
michael@0: 
michael@0:   var proto = Object.getPrototypeOf(Type.prototype);
michael@0:   var dc = Object.getOwnPropertyDescriptor(Type.prototype, "constructor");
michael@0:   var db = Object.getOwnPropertyDescriptor(Type.prototype, "b");
michael@0:   var da = Object.getOwnPropertyDescriptor(proto, "a");
michael@0: 
michael@0:   assert.ok(!dc.writable, "constructor is not writable");
michael@0:   assert.ok(!dc.enumerable, "constructor is not enumerable");
michael@0:   assert.ok(dc.configurable, "constructor inherits configurability");
michael@0: 
michael@0:   assert.ok(!db.writable, "a -> b is not writable");
michael@0:   assert.ok(db.enumerable, "a -> b is enumerable");
michael@0:   assert.ok(!db.configurable, "a -> b is not configurable");
michael@0: 
michael@0:   assert.ok(da.writable, "a is writable");
michael@0:   assert.ok(da.enumerable, "a is enumerable");
michael@0:   assert.ok(da.configurable, "a is configurable");
michael@0: };
michael@0: 
michael@0: if (require.main == module)
michael@0:   require("test").run(exports);