Jasmine tests for ol.TileUrlFunction

test/ol.html

@@ -78,6 +78,7 @@
   <script type="text/javascript" src="spec/ol/object.test.js"></script>
   <script type="text/javascript" src="spec/ol/tilecoord.test.js"></script>
   <script type="text/javascript" src="spec/ol/projection.test.js"></script>
+  <script type="text/javascript" src="spec/ol/tileurlfunction.test.js"></script>
 
   <script type="text/javascript">
     (function() {

test/spec/ol/tileurlfunction.test.js

@@ -0,0 +1,38 @@
+goog.require('ol.TileCoord');
+goog.require('ol.TileUrlFunction');
+
+describe('ol.TileUrlFunction', function() {
+
+  describe('createFromTemplate', function() {
+    it('creates expected URL', function() {
+      var tileUrl = ol.TileUrlFunction.createFromTemplate('{z}/{x}/{y}');
+      expect(tileUrl(new ol.TileCoord(3, 2, 1))).toEqual('3/2/1');
+      expect(tileUrl(null)).toBeUndefined();
+    });
+  });
+
+  describe('withTileCoordTransform', function() {
+    it('creates expected URL', function() {
+      var tileUrl = ol.TileUrlFunction.withTileCoordTransform(
+          function(tileCoord) {
+            return new ol.TileCoord(tileCoord.z, tileCoord.x, -tileCoord.y);
+          },
+          ol.TileUrlFunction.createFromTemplate('{z}/{x}/{y}'));
+      expect(tileUrl(new ol.TileCoord(3, 2, -1))).toEqual('3/2/1');
+      expect(tileUrl(null)).toBeUndefined();
+    });
+  });
+
+  describe('createFromTileUrlFunctions', function() {
+    it('creates expected URL', function() {
+      tileUrl = ol.TileUrlFunction.createFromTileUrlFunctions([
+          ol.TileUrlFunction.createFromTemplate('a'),
+          ol.TileUrlFunction.createFromTemplate('b')
+      ]);
+      var tileUrl1 = tileUrl(new ol.TileCoord(1, 0, 0));
+      var tileUrl2 = tileUrl(new ol.TileCoord(1, 0, 1));
+      expect(tileUrl1).not.toEqual(tileUrl2);
+      expect(tileUrl(null)).toBeUndefined();
+    });
+  });
+});