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comparison: addon-sdk/source/test/traits/inheritance-tests.js
addon-sdk/source/test/traits/inheritance-tests.js
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
equal
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| -1:000000000000 | 0:0b04220bb8c8 |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 "use strict"; | |
| 6 | |
| 7 var Trait = require("sdk/deprecated/light-traits").Trait; | |
| 8 | |
| 9 exports["test custom constructor and inherited toString"] = function(assert) { | |
| 10 function Type() { | |
| 11 return Object.create(Type.prototype); | |
| 12 } | |
| 13 Type.prototype = Trait({ | |
| 14 method: function method() { | |
| 15 return 2; | |
| 16 } | |
| 17 }).create(Object.freeze(Type.prototype)); | |
| 18 | |
| 19 var fixture = Type(); | |
| 20 | |
| 21 assert.equal(fixture.constructor, Type, "must override constructor"); | |
| 22 assert.equal(fixture.toString(), "[object Type]", "must inherit toString"); | |
| 23 }; | |
| 24 | |
| 25 exports["test custom toString and inherited constructor"] = function(assert) { | |
| 26 function Type() { | |
| 27 return Object.create(Type.prototype); | |
| 28 } | |
| 29 Type.prototype = Trait({ | |
| 30 toString: function toString() { | |
| 31 return "<toString>"; | |
| 32 } | |
| 33 }).create(); | |
| 34 | |
| 35 var fixture = Type(); | |
| 36 | |
| 37 assert.equal(fixture.constructor, Trait, "must inherit constructor Trait"); | |
| 38 assert.equal(fixture.toString(), "<toString>", "Must override toString"); | |
| 39 }; | |
| 40 | |
| 41 exports["test custom toString and constructor"] = function(assert) { | |
| 42 function Type() { | |
| 43 return TypeTrait.create(Type.prototype); | |
| 44 } | |
| 45 Object.freeze(Type.prototype); | |
| 46 var TypeTrait = Trait({ | |
| 47 toString: function toString() { | |
| 48 return "<toString>"; | |
| 49 } | |
| 50 }); | |
| 51 | |
| 52 var fixture = Type(); | |
| 53 | |
| 54 assert.equal(fixture.constructor, Type, "constructor is provided to create"); | |
| 55 assert.equal(fixture.toString(), "<toString>", "toString was overridden"); | |
| 56 }; | |
| 57 | |
| 58 exports["test resolve constructor"] = function (assert) { | |
| 59 function Type() {} | |
| 60 var T1 = Trait({ constructor: Type }).resolve({ constructor: '_foo' }); | |
| 61 var f1 = T1.create(); | |
| 62 | |
| 63 assert.equal(f1._foo, Type, "constructor was resolved"); | |
| 64 assert.equal(f1.constructor, Trait, "constructor of prototype is inherited"); | |
| 65 assert.equal(f1.toString(), "[object Trait]", "toString is inherited"); | |
| 66 }; | |
| 67 | |
| 68 exports["test compose read-only"] = function (assert) { | |
| 69 function Type() {} | |
| 70 Type.prototype = Trait.compose(Trait({}), { | |
| 71 constructor: { value: Type }, | |
| 72 a: { value: "b", enumerable: true } | |
| 73 }).resolve({ a: "b" }).create({ a: "a" }); | |
| 74 | |
| 75 var f1 = new Type(); | |
| 76 | |
| 77 assert.equal(Object.getPrototypeOf(f1), Type.prototype, "inherits correctly"); | |
| 78 assert.equal(f1.constructor, Type, "constructor was overridden"); | |
| 79 assert.equal(f1.toString(), "[object Type]", "toString was inherited"); | |
| 80 assert.equal(f1.a, "a", "property a was resolved"); | |
| 81 assert.equal(f1.b, "b", "property a was renamed to b"); | |
| 82 assert.ok(!Object.getOwnPropertyDescriptor(Type.prototype, "a"), | |
| 83 "a is not on the prototype of the instance"); | |
| 84 | |
| 85 var proto = Object.getPrototypeOf(Type.prototype); | |
| 86 var dc = Object.getOwnPropertyDescriptor(Type.prototype, "constructor"); | |
| 87 var db = Object.getOwnPropertyDescriptor(Type.prototype, "b"); | |
| 88 var da = Object.getOwnPropertyDescriptor(proto, "a"); | |
| 89 | |
| 90 assert.ok(!dc.writable, "constructor is not writable"); | |
| 91 assert.ok(!dc.enumerable, "constructor is not enumerable"); | |
| 92 assert.ok(dc.configurable, "constructor inherits configurability"); | |
| 93 | |
| 94 assert.ok(!db.writable, "a -> b is not writable"); | |
| 95 assert.ok(db.enumerable, "a -> b is enumerable"); | |
| 96 assert.ok(!db.configurable, "a -> b is not configurable"); | |
| 97 | |
| 98 assert.ok(da.writable, "a is writable"); | |
| 99 assert.ok(da.enumerable, "a is enumerable"); | |
| 100 assert.ok(da.configurable, "a is configurable"); | |
| 101 }; | |
| 102 | |
| 103 if (require.main == module) | |
| 104 require("test").run(exports); |
