describe('addLayer adding a single marker', function () {

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

	// SETUP FOR EACH TEST

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

	var div, map, group;



	beforeEach(function () {

		div = document.createElement('div');

		div.style.width = '200px';

		div.style.height = '200px';

		document.body.appendChild(div);

	

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

	

		// Corresponds to zoom level 8 for the above div dimensions.

		map.fitBounds(new L.LatLngBounds([

			[1, 1],

			[2, 2]

		]));

	});



	afterEach(function () {

		if (group instanceof L.MarkerClusterGroup) {

			group.clearLayers();

			map.removeLayer(group);

		}



		map.remove();

		div.remove()



		div = map = group = null;

	});



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

	// TESTS

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

	it('appears when added to the group before the group is added to the map', function () {



		group = new L.MarkerClusterGroup();



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



		group.addLayer(marker);

		map.addLayer(group);



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

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

	});



	it('appears when added to the group after the group is added to the map', function () {



		group = new L.MarkerClusterGroup();



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



		map.addLayer(group);

		group.addLayer(marker);



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

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

	});



	it('appears (using animations) when added after the group is added to the map', function () {



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



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



		map.addLayer(group);

		group.addLayer(marker);



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

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

	});



	it('does not appear when too far away when added before the group is added to the map', function () {



		group = new L.MarkerClusterGroup();



		var marker = new L.Marker([3.5, 1.5]);



		group.addLayer(marker);

		map.addLayer(group);



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

	});



	it('does not appear when too far away when added after the group is added to the map', function () {



		group = new L.MarkerClusterGroup();



		var marker = new L.Marker([3.5, 1.5]);



		map.addLayer(group);

		group.addLayer(marker);



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

	});



	it('passes control to addLayers when marker is a Layer Group', function () {



		group = new L.MarkerClusterGroup();



		var marker1 = new L.Marker([1.5, 1.5]);

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

		var layerGroup = new L.LayerGroup([marker1, marker2]);



		map.addLayer(group);

		group.addLayer(layerGroup);



		expect(group._topClusterLevel.getChildCount()).to.equal(2);



		expect(marker1._icon).to.be(undefined);

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



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

	});

});

