public void Edit()
        {
            LicenseController        controller = new LicenseController();
            EditUserLicenseViewModel model      = new EditUserLicenseViewModel();

            int id = 0;

            try
            {
                controller.Edit(id); // soll Exception werfen
                Assert.Fail();       // fehlgeschlagen, wenn es hierhin kommt
            }
            catch (EntityException ex)
            {
                Assert.IsTrue(ex is EntityException);
            }
            finally
            {
                try
                {
                    controller.Edit(id, model); // soll Exception werfen
                }
                catch (EntityException ex)
                {
                    Assert.IsTrue(ex is EntityException);
                }
            }
        }