Leaflet/spec/suites/layer/vector/PathSpec.js

describe('Path', function () {
	describe('#bringToBack', function () {
		it('is a no-op for layers not on a map', function () {
			var path = new L.Path();
			expect(path.bringToBack()).to.equal(path);
		});
	});

	describe('#bringToFront', function () {
		it('is a no-op for layers not on a map', function () {
			var path = new L.Path();
			expect(path.bringToFront()).to.equal(path);
		});
	});

	describe('#events', function () {

		var c, map;

		beforeEach(function () {
			c = document.createElement('div');
			c.style.width = '400px';
			c.style.height = '400px';
			map = new L.Map(c);
			map.setView(new L.LatLng(0, 0), 0);
			document.body.appendChild(c);
		});

		afterEach(function () {
			document.body.removeChild(c);
		});

		it('fires click event', function () {
			var spy = sinon.spy();
			var layer = new L.Polygon([[1, 2], [3, 4], [5, 6]]).addTo(map);
			layer.on('click', spy);
			happen.click(layer._path);
			expect(spy.called).to.be.ok();
		});

		it('propagates click event by default', function () {
			var spy = sinon.spy();
			var spy2 = sinon.spy();
			var mapSpy = sinon.spy();
			var layer = new L.Polygon([[1, 2], [3, 4], [5, 6]]).addTo(map);
			layer.on('click', spy);
			layer.on('click', spy2);
			map.on('click', mapSpy);
			happen.click(layer._path);
			expect(spy.called).to.be.ok();
			expect(spy2.called).to.be.ok();
			expect(mapSpy.called).to.be.ok();
		});

	});
});