public void ExternalSourceGadgetRegisters()
{
ExternalSourceGadgetTestData data = new ExternalSourceGadgetTestData();
GadgetMaster target = GadgetMaster.CreateGadget(TEST_FACTORY_KEY, data.Source);
Assert.IsTrue(target.HasExternalServerRenderControls(), "No external render controls registered");
Assert.IsTrue(target.HasExternalServerRenderControls("home"));
//Assert.IsFalse(target.HasExternalServerRenderControls("canvas"));
List <IExternalDataSource> srcs = target.GetExternalServerRenderControls("home");
Assert.AreEqual(data.ExpectedExternalControlCount, srcs.Count, "Ext control count wrong");
}