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