add expected location values from s2geometry-node

tests/conversions.js

@@ -0,0 +1,56 @@
+'use strict';
+
+var s2node = require('s2geometry-node');
+var S2 = require('../src/s2geometry.js').S2;
+
+var tests = [
+  { 'name': 'Provo, UT'
+  , 'lat': 40.2574448
+  , 'lng': -111.7089464
+  , 'key': ''
+  , 'id': ''
+  }
+, { 'name': 'Startup Building'
+  , 'lat': 40.2262363
+  , 'lng': -111.6630927
+  , 'key': ''
+  , 'id': ''
+  }
+, { 'name': "Kyderman's"
+  , 'lat': 51.352085106718384 // 51.352085106718384
+  , 'lng': -2.9877930879592896 // -2.9877930879592896
+  , 'key': ''
+  , 'id': ''
+  }
+, { 'name': "Toeler's"
+  , 'lat': -43.525166 // -43.5261282
+  , 'lng': 172.655096 // 172.6561085
+  , 'key': ''
+  , 'id': ''
+  }
+/*
+, { 'name': ""
+  , 'lat': 0
+  , 'lng': 0
+  , 'key': ''
+  , 'id': ''
+  }
+*/
+];
+
+// get known-expected values
+tests.forEach(function (loc) {
+  var level = 15;
+  var s2nLatLng = new s2node.S2LatLng(loc.lat, loc.lng);
+  var s2nId = new s2node.S2CellId(s2nLatLng).parent(level);
+  var s2nCell = new s2node.S2Cell(s2nId);
+
+  loc.face = s2nCell.face();
+  loc.id = s2nId.id();
+  loc.key = s2nId.toString();
+  loc.lat = s2nId.toLatLng().toString().split(',')[0];
+  loc.lng = s2nId.toLatLng().toString().split(',')[1];
+  loc.level = s2nId.level(); // always 15
+
+  console.log(JSON.stringify(loc, null, '  '));
+});