describe('getVisibleParent', function () { 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 }); map.fitBounds(new L.LatLngBounds([ [1, 1], [2, 2] ])); }); afterEach(function () { document.body.removeChild(div); }); it('gets the marker if the marker is visible', function () { var group = new L.MarkerClusterGroup(); var marker = new L.Marker([1.5, 1.5]); group.addLayer(marker); map.addLayer(group); var vp = group.getVisibleParent(marker); expect(vp).to.be(marker); }); it('gets the visible cluster if it is clustered', 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.addLayers([marker, marker2]); map.addLayer(group); var vp = group.getVisibleParent(marker); expect(vp).to.be.a(L.MarkerCluster); expect(vp._icon).to.not.be(null); expect(vp._icon).to.not.be(undefined); }); it('returns null if the marker and parents are all not visible', function () { var group = new L.MarkerClusterGroup(); var marker = new L.Marker([5.5, 1.5]); var marker2 = new L.Marker([5.5, 1.5]); group.addLayers([marker, marker2]); map.addLayer(group); var vp = group.getVisibleParent(marker); expect(vp).to.be(null); }); });