describe('getLayers', function () { ///////////////////////////// // SETUP FOR EACH TEST ///////////////////////////// var map, div; 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 }); map.fitBounds(new L.LatLngBounds([ [1, 1], [2, 2] ])); }); afterEach(function () { map.remove(); document.body.removeChild(div); map = div = null; }); ///////////////////////////// // TESTS ///////////////////////////// it('hits polygons and markers before adding to map', function () { var group = new L.MarkerClusterGroup(); var polygon = new L.Polygon([[1.5, 1.5], [2.0, 1.5], [2.0, 2.0], [1.5, 2.0]]); var marker = new L.Marker([1.5, 1.5]); group.addLayers([polygon, marker]); var layers = group.getLayers(); expect(layers.length).to.be(2); expect(layers).to.contain(marker); expect(layers).to.contain(polygon); }); it('hits polygons and markers after adding to map', function () { var group = new L.MarkerClusterGroup(); var polygon = new L.Polygon([[1.5, 1.5], [2.0, 1.5], [2.0, 2.0], [1.5, 2.0]]); var marker = new L.Marker([1.5, 1.5]); group.addLayers([polygon, marker]); map.addLayer(group); var layers = group.getLayers(); expect(layers.length).to.be(2); expect(layers).to.contain(marker); expect(layers).to.contain(polygon); }); it('skips markers and polygons removed while not on the map', function () { var group = new L.MarkerClusterGroup(); var polygon = new L.Polygon([[1.5, 1.5], [2.0, 1.5], [2.0, 2.0], [1.5, 2.0]]); var marker = new L.Marker([1.5, 1.5]); group.addLayers([polygon, marker]); map.addLayer(group); map.removeLayer(group); group.removeLayers([polygon, marker]); var layers = group.getLayers(); expect(layers.length).to.be(0); }); });