Add Graticule component

test/spec/ol/graticule.test.js

@@ -0,0 +1,30 @@
+goog.provide('ol.test.Graticule');
+
+describe('ol.Graticule', function() {
+  var graticule;
+
+  beforeEach(function() {
+    graticule = new ol.Graticule({
+      map: new ol.Map({})
+    });
+  });
+
+  describe('#createGraticule', function() {
+    it('creates the graticule', function() {
+      var extent = [-25614353.926475704, -7827151.696402049,
+        25614353.926475704, 7827151.696402049];
+      var projection = ol.proj.get('EPSG:3857');
+      var resolution = 39135.75848201024;
+      var squaredTolerance = resolution * resolution / 4.0;
+      graticule.updateProjectionInfo_(projection);
+      graticule.createGraticule_(extent, [0, 0], resolution, squaredTolerance);
+      expect(graticule.getMeridians().length).to.be(13);
+      expect(graticule.getParallels().length).to.be(3);
+    });
+  });
+
+});
+
+goog.require('ol.Graticule');
+goog.require('ol.Map');
+goog.require('ol.proj');