describe('addLayer adding multiple markers', function () {

	/////////////////////////////

	// SETUP FOR EACH TEST

	/////////////////////////////

	var map, div, clock;



	beforeEach(function () {

		clock = sinon.useFakeTimers();



		div = document.createElement('div');

		div.style.width = '200px';

		div.style.height = '200px';

		document.body.appendChild(div);



		map = L.map(div, { maxZoom: 18, trackResize: false });



		map.fitBounds(new L.LatLngBounds([

			[1, 1],

			[2, 2]

		]));

	});



	afterEach(function () {

		map.remove();

		document.body.removeChild(div);

		clock.restore();



		map = div = clock = null;

	});



	/////////////////////////////

	// TESTS

	/////////////////////////////

	it('creates a cluster when 2 overlapping markers are added before the group is added to the map', function () {



		var group = new L.MarkerClusterGroup();

		var marker = new L.Marker([1.5, 1.5]);

		var marker2 = new L.Marker([1.5, 1.5]);



		group.addLayer(marker);

		group.addLayer(marker2);

		map.addLayer(group);



		expect(marker._icon).to.be(undefined);

		expect(marker2._icon).to.be(undefined);



		expect(map._panes.markerPane.childNodes.length).to.be(1);

	});

	it('creates a cluster when 2 overlapping markers are added after the group is added to the map', function () {



		var group = new L.MarkerClusterGroup();

		var marker = new L.Marker([1.5, 1.5]);

		var marker2 = new L.Marker([1.5, 1.5]);



		map.addLayer(group);

		group.addLayer(marker);

		group.addLayer(marker2);



		expect(marker._icon).to.be(null); //Null as was added and then removed

		expect(marker2._icon).to.be(undefined);



		expect(map._panes.markerPane.childNodes.length).to.be(1);

	});

	it('creates a cluster with an animation when 2 overlapping markers are added after the group is added to the map', function () {



		var group = new L.MarkerClusterGroup({ animateAddingMarkers: true });

		var marker = new L.Marker([1.5, 1.5]);

		var marker2 = new L.Marker([1.5, 1.5]);



		map.addLayer(group);

		group.addLayer(marker);

		group.addLayer(marker2);



		expect(marker._icon.parentNode).to.be(map._panes.markerPane);

		expect(marker2._icon.parentNode).to.be(map._panes.markerPane);



		expect(map._panes.markerPane.childNodes.length).to.be(3);



		//Run the the animation

		clock.tick(1000);



		//Then markers should be removed from map

		expect(marker._icon).to.be(null);

		expect(marker2._icon).to.be(null);



		expect(map._panes.markerPane.childNodes.length).to.be(1);

	});



	it('creates a cluster and marker when 2 overlapping markers and one non-overlapping are added before the group is added to the map', function () {



		var group = new L.MarkerClusterGroup();

		var marker = new L.Marker([1.5, 1.5]);

		var marker2 = new L.Marker([1.5, 1.5]);

		var marker3 = new L.Marker([3.0, 1.5]);



		group.addLayer(marker);

		group.addLayer(marker2);

		group.addLayer(marker3);

		map.addLayer(group);



		expect(marker._icon).to.be(undefined);

		expect(marker2._icon).to.be(undefined);

		expect(marker3._icon.parentNode).to.be(map._panes.markerPane);



		expect(map._panes.markerPane.childNodes.length).to.be(2);

	});

	it('creates a cluster and marker when 2 overlapping markers and one non-overlapping are added after the group is added to the map', function () {



		var group = new L.MarkerClusterGroup();

		var marker = new L.Marker([1.5, 1.5]);

		var marker2 = new L.Marker([1.5, 1.5]);

		var marker3 = new L.Marker([3.0, 1.5]);



		map.addLayer(group);

		group.addLayer(marker);

		group.addLayer(marker2);

		group.addLayer(marker3);



		expect(marker._icon).to.be(null); //Null as was added and then removed

		expect(marker2._icon).to.be(undefined);

		expect(marker3._icon.parentNode).to.be(map._panes.markerPane);



		expect(map._panes.markerPane.childNodes.length).to.be(2);

	});



	it('unspiderfies before adding a new Marker', function () {



		group = new L.MarkerClusterGroup();



		var marker = new L.Marker([1.5, 1.5]);

		var marker2 = new L.Marker([1.5, 1.5]);

		var marker3 = new L.Marker([1.5, 1.5]);



		group.addLayers([marker, marker2]);

		map.addLayer(group);



		expect(marker._icon).to.be(undefined);

		expect(marker2._icon).to.be(undefined);



		group.zoomToShowLayer(marker);

		//Run the the animation

		clock.tick(1000);



		expect(marker._icon).to.not.be(undefined);

		expect(marker._icon).to.not.be(null);

		expect(marker2._icon).to.not.be(undefined);

		expect(marker2._icon).to.not.be(null);



		group.addLayer(marker3);

		//Run the the animation

		clock.tick(1000);



		expect(marker._icon).to.be(null);

		expect(marker2._icon).to.be(null);

		expect(marker3._icon).to.be(undefined);

		expect(marker3.__parent._icon).to.not.be(undefined);

		expect(marker3.__parent._icon).to.not.be(null);

		expect(marker3.__parent._icon.innerText.trim()).to.equal('3');

	});

});