159 lines
3.3 KiB
JavaScript
159 lines
3.3 KiB
JavaScript
/* global Backbone */
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'use strict';
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describe('ReliableTrigger', () => {
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describe('trigger', () => {
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let Model;
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let model;
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before(() => {
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({ Model } = Backbone);
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});
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beforeEach(() => {
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model = new Model();
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});
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it('returns successfully if this._events is falsey', () => {
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model._events = null;
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model.trigger('click');
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});
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it('handles map of events to trigger', () => {
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let a = 0;
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let b = 0;
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model.on('a', arg => {
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a = arg;
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});
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model.on('b', arg => {
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b = arg;
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});
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model.trigger({
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a: 1,
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b: 2,
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});
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assert.strictEqual(a, 1);
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assert.strictEqual(b, 2);
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});
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it('handles space-separated list of events to trigger', () => {
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let a = false;
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let b = false;
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model.on('a', () => {
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a = true;
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});
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model.on('b', () => {
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b = true;
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});
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model.trigger('a b');
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assert.strictEqual(a, true);
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assert.strictEqual(b, true);
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});
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it('calls all clients registered for "all" event', () => {
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let count = 0;
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model.on('all', () => {
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count += 1;
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});
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model.trigger('left');
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model.trigger('right');
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assert.strictEqual(count, 2);
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});
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it('calls all clients registered for target event', () => {
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let a = false;
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let b = false;
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model.on('event', () => {
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a = true;
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});
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model.on('event', () => {
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b = true;
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});
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model.trigger('event');
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assert.strictEqual(a, true);
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assert.strictEqual(b, true);
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});
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it('successfully returns and calls all clients even if first failed', () => {
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let a = false;
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let b = false;
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model.on('event', () => {
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a = true;
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throw new Error('a is set, but exception is thrown');
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});
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model.on('event', () => {
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b = true;
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});
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model.trigger('event');
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assert.strictEqual(a, true);
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assert.strictEqual(b, true);
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});
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it('calls clients with no args', () => {
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let called = false;
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model.on('event', () => {
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called = true;
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});
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model.trigger('event');
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assert.strictEqual(called, true);
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});
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it('calls clients with 1 arg', () => {
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let args;
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model.on('event', (...eventArgs) => {
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args = eventArgs;
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});
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model.trigger('event', 1);
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assert.strictEqual(args[0], 1);
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});
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it('calls clients with 2 args', () => {
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let args;
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model.on('event', (...eventArgs) => {
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args = eventArgs;
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});
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model.trigger('event', 1, 2);
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assert.strictEqual(args[0], 1);
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assert.strictEqual(args[1], 2);
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});
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it('calls clients with 3 args', () => {
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let args;
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model.on('event', (...eventArgs) => {
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args = eventArgs;
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});
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model.trigger('event', 1, 2, 3);
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assert.strictEqual(args[0], 1);
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assert.strictEqual(args[1], 2);
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assert.strictEqual(args[2], 3);
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});
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it('calls clients with 4+ args', () => {
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let args;
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model.on('event', (...eventArgs) => {
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args = eventArgs;
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});
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model.trigger('event', 1, 2, 3, 4);
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assert.strictEqual(args[0], 1);
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assert.strictEqual(args[1], 2);
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assert.strictEqual(args[2], 3);
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assert.strictEqual(args[3], 4);
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});
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});
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});
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