describe('PolylineGeometry', function () { var c = document.createElement('div'); c.style.width = '400px'; c.style.height = '400px'; var map = new L.Map(c); map.setView(new L.LatLng(55.8, 37.6), 6); describe("#distanceTo", function () { it("calculates distances to points", function () { var p1 = map.latLngToLayerPoint(new L.LatLng(55.8, 37.6)); var p2 = map.latLngToLayerPoint(new L.LatLng(57.123076977278, 44.861962891635)); var latlngs = [[56.485503424111, 35.545556640339], [55.972522915346, 36.116845702918], [55.502459116923, 34.930322265253], [55.31534617509, 38.973291015816]] .map(function (ll) { return new L.LatLng(ll[0], ll[1]); }); var polyline = new L.Polyline([], { 'noClip': true }); map.addLayer(polyline); expect(polyline.closestLayerPoint(p1)).to.be(null); polyline.setLatLngs(latlngs); var point = polyline.closestLayerPoint(p1); expect(point).not.to.be(null); expect(point.distance).to.not.be(Infinity); expect(point.distance).to.not.be(NaN); var point2 = polyline.closestLayerPoint(p2); expect(point.distance).to.be.lessThan(point2.distance); }); }); });