vpaid-html5-client
Version:
232 lines (173 loc) • 7.59 kB
JavaScript
;
var noop = require('../testHelper').noop;
var Subscriber = require('../../js/subscriber');
describe('subscriber.js api', function () {
it('must be a constructor function', function () {
assert.isFunction(Subscriber);
});
describe('instance like object', function() {
var subscriber;
beforeEach(function () {
subscriber = new Subscriber();
});
it('must return instance', function () {
assert.instanceOf(subscriber, Subscriber);
});
describe('get', function () {
it('must implement', function () {
assert.isFunction(subscriber.get);
assert.lengthOf(subscriber.get, 1);
});
it('must return an empty array if doesnt\'t exist any', function() {
assert.isArray(subscriber.get('noEvent'));
assert.lengthOf(subscriber.get('noEvent'), 0);
});
});
describe('subscribe', function() {
it('must implement', function() {
assert.isFunction(subscriber.subscribe);
assert.lengthOf(subscriber.subscribe, 3);
});
it('must register', function() {
var f1 = function(){};
var f2 = function(){};
var f3 = function(){};
subscriber.subscribe(f1, 'test', this);
subscriber.subscribe(f2, 'test', this);
subscriber.subscribe(f3, 'test1', this);
assert.lengthOf(subscriber._subscribers.test, 2);
assert.lengthOf(subscriber._subscribers.test1, 1);
assert.sameDeepMembers(subscriber.get('test'), [{handler: f1, context: this, eventName: 'test'}, {handler: f2, context: this, eventName: 'test'}]);
assert.sameDeepMembers(subscriber.get('test1'), [{handler: f3, context: this, eventName: 'test1'}]);
});
});
describe('unsubscribe', function () {
it('must implement', function() {
assert.isFunction(subscriber.unsubscribe);
assert.lengthOf(subscriber.unsubscribe, 2);
});
it('must not throw', function() {
assert.doesNotThrow(function () {
subscriber.unsubscribe(noop, 'test');
});
});
it('must unRegister', function() {
var f1 = function f1() {};
var f2 = function f2() {};
subscriber.subscribe(f1, 'test', this);
subscriber.subscribe(f2, 'test', this);
subscriber.subscribe(f1, 'test1', this);
subscriber.subscribe(f2, 'test1', this);
assert.lengthOf(subscriber.get('test'), 2);
assert.lengthOf(subscriber.get('test1'), 2);
subscriber.unsubscribe(f2, 'test1', this);
assert.sameDeepMembers(subscriber.get('test'), [{handler: f1, context: this, eventName: 'test'}, {handler: f2, context: this, eventName: 'test'}]);
assert.sameDeepMembers(subscriber.get('test1'), [{handler: f1, context: this, eventName: 'test1'}]);
});
});
describe('unsubscribeAll', function () {
it('must implement', function () {
assert.isFunction(subscriber.unsubscribeAll);
});
it('must remove all', function (){
subscriber.subscribe(function(){}, 'test', this);
subscriber.subscribe(noop, 'test', this);
subscriber.subscribe(function(){}, 'test1', this);
subscriber.subscribe(noop, 'test1', this);
assert.lengthOf(subscriber.get('test'), 2);
assert.lengthOf(subscriber.get('test1'), 2);
subscriber.unsubscribeAll();
assert.lengthOf(subscriber.get('test'), 0);
assert.lengthOf(subscriber.get('test1'), 0);
});
});
describe('trigger', function () {
var clock;
beforeEach(function () {
clock = sinon.useFakeTimers();
});
afterEach(function () {
clock.restore();
});
it('must implement', function () {
assert.isFunction(subscriber.trigger);
});
it('must trigger the event listeners', function (){
var cb1 = [sinon.spy(), sinon.spy()];
var cb2 = [sinon.spy()];
cb1.forEach(function (cb) {
subscriber.subscribe(cb, 'event1');
});
cb2.forEach(function (cb) {
subscriber.subscribe(cb, 'event2');
});
var data1 = {};
var data2 = {};
subscriber.trigger('event1', data1);
subscriber.trigger('event2', data2);
clock.tick(100);
cb1.forEach(function (cb) {
assert(cb.calledWith(data1));
});
cb2.forEach(function (cb) {
assert(cb.calledWith(data2));
});
});
it('must trigger the * event listeners', function () {
var cb1 = sinon.spy();
var cb2 = sinon.spy();
subscriber.subscribe(cb1, 'event1');
subscriber.subscribe(cb2, '*');
var data1 = {};
var data2 = {};
subscriber.trigger('event1', data1);
clock.tick(1);
assert(cb1.calledWith(data1));
assert(cb2.calledWith(data1));
cb2.reset();
subscriber.trigger('event2', data2);
clock.tick(1);
assert(cb2.calledWith(data2));
});
});
describe('triggerSync', function () {
it('must implement', function () {
assert.isFunction(subscriber.trigger);
});
it('must trigger the event listeners immediately', function (){
var cb1 = [sinon.spy(), sinon.spy()];
var cb2 = [sinon.spy()];
cb1.forEach(function (cb) {
subscriber.subscribe(cb, 'event1');
});
cb2.forEach(function (cb) {
subscriber.subscribe(cb, 'event2');
});
var data1 = {};
var data2 = {};
subscriber.triggerSync('event1', data1);
subscriber.triggerSync('event2', data2);
cb1.forEach(function (cb) {
assert(cb.calledWith(data1));
});
cb2.forEach(function (cb) {
assert(cb.calledWith(data2));
});
});
it('must trigger the * event listeners', function () {
var cb1 = sinon.spy();
var cb2 = sinon.spy();
subscriber.subscribe(cb1, 'event1');
subscriber.subscribe(cb2, '*');
var data1 = {};
var data2 = {};
subscriber.triggerSync('event1', data1);
assert(cb1.calledWith(data1));
assert(cb2.calledWith(data1));
cb2.reset();
subscriber.triggerSync('event2', data2);
assert(cb2.calledWith(data2));
});
});
});
});