diff -r ba2b3c15bd47 -r 1f90756342e2 unittests/tests/mockSerializer.js
--- a/unittests/tests/mockSerializer.js	Tue Oct 25 14:32:05 2011 +0200
+++ b/unittests/tests/mockSerializer.js	Tue Oct 25 14:32:23 2011 +0200
@@ -15,5 +15,13 @@
       notEqual(ser.serialize, undefined, ".serialize is defined");
       notEqual(ser.deserialize, undefined, ".deserialize is defined");
   });
+  
+  test("check that the callback is called", function() {
+      var dt = new IriSP.DataLoader();
+      var ser = new IriSP.Serializer(dt);
+      var spy = this.spy();
+      ser.sync(spy);
+      ok(spy.called, "the callback has been called");
+  });
 
 };
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