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describe('Events', function() {
var Klass;
beforeEach(function() {
Klass = L.Class.extend({
includes: L.Mixin.Events
});
});
describe('#fireEvent', function() {
it('should fire all listeners added through #addEventListener', function() {
var obj = new Klass(),
spy = jasmine.createSpy(),
spy2 = jasmine.createSpy(),
spy3 = jasmine.createSpy();
obj.addEventListener('test', spy);
obj.addEventListener('test', spy2);
obj.addEventListener('other', spy3);
expect(spy).not.toHaveBeenCalled();
expect(spy2).not.toHaveBeenCalled();
expect(spy3).not.toHaveBeenCalled();
obj.fireEvent('test');
expect(spy).toHaveBeenCalled();
expect(spy2).toHaveBeenCalled();
expect(spy3).not.toHaveBeenCalled();
});
it('should provide event object to listeners and execute them in the right context', function() {
var obj = new Klass(),
obj2 = new Klass(),
foo = {};
function listener1(e) {
expect(e.type).toEqual('test');
expect(e.target).toEqual(obj);
expect(this).toEqual(obj);
expect(e.bar).toEqual(3);
};
function listener2(e) {
expect(e.target).toEqual(obj2);
expect(this).toEqual(foo);
};
obj.addEventListener('test', listener1);
obj2.addEventListener('test', listener2, foo);
obj.fireEvent('test', {bar: 3});
});
it('should not call listeners removed through #removeEventListener', function() {
var obj = new Klass(),
spy = jasmine.createSpy();
obj.addEventListener('test', spy);
obj.removeEventListener('test', spy);
obj.fireEvent('test');
expect(spy).not.toHaveBeenCalled();
});
});
describe('#on, #off & #fire', function() {
it('should work like #addEventListener && #removeEventListener', function() {
var obj = new Klass(),
spy = jasmine.createSpy();
obj.on('test', spy);
obj.fire('test');
expect(spy).toHaveBeenCalled();
obj.off('test', spy);
obj.fireEvent('test');
expect(spy.callCount).toBeLessThan(2);
});
it('should not override existing methods with the same name', function() {
var spy1 = jasmine.createSpy(),
spy2 = jasmine.createSpy(),
spy3 = jasmine.createSpy();
var Klass2 = L.Class.extend({
includes: L.Mixin.Events,
on: spy1,
off: spy2,
fire: spy3
});
var obj = new Klass2();
obj.on();
expect(spy1).toHaveBeenCalled();
obj.off();
expect(spy2).toHaveBeenCalled();
obj.fire();
expect(spy3).toHaveBeenCalled();
});
});
});
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