The Tor Browser / file comparison
comparison: addon-sdk/source/test/test-observers.js
addon-sdk/source/test/test-observers.js
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
equal
deleted
inserted
replaced
| -1:000000000000 | 0:5ebe4396eaeb |
|---|---|
| 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 "use strict"; | |
| 5 | |
| 6 const { Loader } = require("sdk/test/loader"); | |
| 7 const { isWeak, WeakReference } = require("sdk/core/reference"); | |
| 8 const { subscribe, unsubscribe, | |
| 9 observe, Observer } = require("sdk/core/observer"); | |
| 10 const { Class } = require("sdk/core/heritage"); | |
| 11 | |
| 12 const { Cc, Ci, Cu } = require("chrome"); | |
| 13 const { notifyObservers } = Cc["@mozilla.org/observer-service;1"]. | |
| 14 getService(Ci.nsIObserverService); | |
| 15 | |
| 16 const message = x => ({wrappedJSObject: x}); | |
| 17 | |
| 18 exports["test subscribe unsubscribe"] = assert => { | |
| 19 const topic = Date.now().toString(32); | |
| 20 const Subscriber = Class({ | |
| 21 extends: Observer, | |
| 22 initialize: function(observe) { | |
| 23 this.observe = observe; | |
| 24 } | |
| 25 }); | |
| 26 observe.define(Subscriber, (x, subject, _, data) => | |
| 27 x.observe(subject.wrappedJSObject.x)); | |
| 28 | |
| 29 let xs = []; | |
| 30 const x = Subscriber((...rest) => xs.push(...rest)); | |
| 31 | |
| 32 let ys = []; | |
| 33 const y = Subscriber((...rest) => ys.push(...rest)); | |
| 34 | |
| 35 const publish = (topic, data) => | |
| 36 notifyObservers(message(data), topic, null); | |
| 37 | |
| 38 publish({x:0}); | |
| 39 | |
| 40 subscribe(x, topic); | |
| 41 | |
| 42 publish(topic, {x:1}); | |
| 43 | |
| 44 subscribe(y, topic); | |
| 45 | |
| 46 publish(topic, {x:2}); | |
| 47 publish(topic + "!", {x: 2.5}); | |
| 48 | |
| 49 unsubscribe(x, topic); | |
| 50 | |
| 51 publish(topic, {x:3}); | |
| 52 | |
| 53 subscribe(y, topic); | |
| 54 | |
| 55 publish(topic, {x:4}); | |
| 56 | |
| 57 subscribe(x, topic); | |
| 58 | |
| 59 publish(topic, {x:5}); | |
| 60 | |
| 61 unsubscribe(x, topic); | |
| 62 unsubscribe(y, topic); | |
| 63 | |
| 64 publish(topic, {x:6}); | |
| 65 | |
| 66 assert.deepEqual(xs, [1, 2, 5]); | |
| 67 assert.deepEqual(ys, [2, 3, 4, 5]); | |
| 68 } | |
| 69 | |
| 70 exports["test weak observers are GC-ed on unload"] = (assert, end) => { | |
| 71 const topic = Date.now().toString(32); | |
| 72 const loader = Loader(module); | |
| 73 const { Observer, observe, | |
| 74 subscribe, unsubscribe } = loader.require("sdk/core/observer"); | |
| 75 const { isWeak, WeakReference } = loader.require("sdk/core/reference"); | |
| 76 | |
| 77 const MyObserver = Class({ | |
| 78 extends: Observer, | |
| 79 initialize: function(observe) { | |
| 80 this.observe = observe; | |
| 81 } | |
| 82 }); | |
| 83 observe.define(MyObserver, (x, ...rest) => x.observe(...rest)); | |
| 84 | |
| 85 const MyWeakObserver = Class({ | |
| 86 extends: MyObserver, | |
| 87 implements: [WeakReference] | |
| 88 }); | |
| 89 | |
| 90 let xs = []; | |
| 91 let ys = []; | |
| 92 let x = new MyObserver((subject, topic, data) => { | |
| 93 xs.push(subject.wrappedJSObject, topic, data); | |
| 94 }); | |
| 95 let y = new MyWeakObserver((subject, topic, data) => { | |
| 96 ys.push(subject.wrappedJSObject, topic, data); | |
| 97 }); | |
| 98 | |
| 99 subscribe(x, topic); | |
| 100 subscribe(y, topic); | |
| 101 | |
| 102 | |
| 103 notifyObservers(message({ foo: 1 }), topic, null); | |
| 104 x = null; | |
| 105 y = null; | |
| 106 loader.unload(); | |
| 107 | |
| 108 Cu.schedulePreciseGC(() => { | |
| 109 | |
| 110 notifyObservers(message({ bar: 2 }), topic, ":)"); | |
| 111 | |
| 112 assert.deepEqual(xs, [{ foo: 1 }, topic, null, | |
| 113 { bar: 2 }, topic, ":)"], | |
| 114 "non week observer is kept"); | |
| 115 | |
| 116 assert.deepEqual(ys, [{ foo: 1 }, topic, null], | |
| 117 "week observer was GC-ed"); | |
| 118 | |
| 119 end(); | |
| 120 }); | |
| 121 }; | |
| 122 | |
| 123 require("sdk/test").run(exports); |
