diff --git a/test/ol.html b/test/ol.html
index 7381ba1002..7e362c8f88 100644
--- a/test/ol.html
+++ b/test/ol.html
@@ -75,6 +75,7 @@
   <script type="text/javascript" src="jasmine-extensions.js"></script>
 
   <!-- include spec files here... -->
+  <script type="text/javascript" src="spec/ol/extent.test.js"></script>
   <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>
diff --git a/test/spec/ol/extent.test.js b/test/spec/ol/extent.test.js
new file mode 100644
index 0000000000..ef5329ecd2
--- /dev/null
+++ b/test/spec/ol/extent.test.js
@@ -0,0 +1,36 @@
+goog.require('ol.Extent');
+goog.require('ol.Projection');
+
+describe('ol.Extent', function() {
+
+  describe('clone', function() {
+
+    it('does clone', function() {
+      var extent = new ol.Extent(1, 2, 3, 4);
+      var clonedExtent = extent.clone();
+      expect(clonedExtent).toBeA(ol.Extent);
+      expect(clonedExtent).not.toBe(extent);
+      expect(clonedExtent.minX).toEqual(extent.minX);
+      expect(clonedExtent.minY).toEqual(extent.minY);
+      expect(clonedExtent.maxX).toEqual(extent.maxX);
+      expect(clonedExtent.maxY).toEqual(extent.maxY);
+    });
+  });
+
+  describe('transform', function() {
+
+    it('does transform', function() {
+      var transformFn =
+          ol.Projection.getTransformFromCodes('EPSG:4326', 'EPSG:3857');
+      var sourceExtent = new ol.Extent(-15, -30, 45, 60);
+      var destinationExtent = sourceExtent.transform(transformFn);
+      expect(destinationExtent).not.toBeUndefined();
+      expect(destinationExtent).not.toBeNull();
+      // FIXME check values with third-party tool
+      expect(destinationExtent.minX).toRoughlyEqual(-1669792.3618991037, 1e-9);
+      expect(destinationExtent.minY).toRoughlyEqual(-3503549.843504376, 1e-9);
+      expect(destinationExtent.maxX).toRoughlyEqual(5009377.085697311, 1e-9);
+      expect(destinationExtent.maxY).toRoughlyEqual(8399737.889818361, 1e-9);
+    });
+  });
+});