Code coverage report for ./suites/dom/DomEventSpec.js

Statements: 96.43% (54 / 56)      Branches: 50% (3 / 6)      Functions: 100% (16 / 16)      Lines: 96.43% (54 / 56)     

All files » ./suites/dom/ » DomEventSpec.js
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describe('DomEvent', function() {
	var el;
 
	function simulateClick(el) {
		Eif (document.createEvent) {
			var e = document.createEvent('MouseEvents');
			e.initMouseEvent('click', true, true, window, 
					0, 0, 0, 0, 0, false, false, false, false, 0, null);
			return el.dispatchEvent(e);
		} else if (el.fireEvent) {
			return el.fireEvent('onclick');
		}
	}
 
	beforeEach(function() {
		el = document.createElement('div');
		el.style.position = 'absolute';
		el.style.top = el.style.left = '-10000px';
		document.body.appendChild(el);
	});
 
	afterEach(function() {
		document.body.removeChild(el);
	});
 
	describe('#addListener', function() {
		it('adds a listener and calls it on event', function() {
			var listener1 = sinon.spy(),
				listener2 = sinon.spy();
 
			L.DomEvent.addListener(el, 'click', listener1);
			L.DomEvent.addListener(el, 'click', listener2);
 
			simulateClick(el);
 
			expect(listener1.called).to.be.ok();
			expect(listener2.called).to.be.ok();
		});
 
		it('binds "this" to the given context', function() {
			var obj = {foo: 'bar'},
				result;
 
			L.DomEvent.addListener(el, 'click', function() {
				result = this;
			}, obj);
 
			simulateClick(el);
 
			expect(result).to.eql(obj);
		});
 
		it('passes an event object to the listener', function() {
			var type;
 
			L.DomEvent.addListener(el, 'click', function(e) {
				type = e && e.type;
			});
			simulateClick(el);
 
			expect(type).to.eql('click');
		});
	});
 
	describe('#removeListener', function() {
		it('removes a previously added listener', function() {
			var listener = sinon.spy();
 
			L.DomEvent.addListener(el, 'click', listener);
			L.DomEvent.removeListener(el, 'click', listener);
 
			simulateClick(el);
 
			expect(listener.called).to.not.be.ok();
		});
	});
 
	describe('#stopPropagation', function() {
		it('stops propagation of the given event', function() {
			var child = document.createElement('div'),
				listener = sinon.spy();
 
			el.appendChild(child);
 
			L.DomEvent.addListener(child, 'click', L.DomEvent.stopPropagation);
			L.DomEvent.addListener(el, 'click', listener);
 
			simulateClick(child);
 
			expect(listener.called).to.not.be.ok();
 
			el.removeChild(child);
		});
	});
	describe('#preventDefault', function() {
		it('prevents the default action of event', function() {
			L.DomEvent.addListener(el, 'click', L.DomEvent.preventDefault);
 
			expect(simulateClick(el)).to.be(false);
		});
	});
});