public void CanValidate () { TimeSpan t = new TimeSpan (1000); TimeSpanValidator v = new TimeSpanValidator (t, t); Assert.IsTrue (v.CanValidate (typeof (TimeSpan)), "A1"); Assert.IsFalse (v.CanValidate (typeof (int)), "A2"); Assert.IsFalse (v.CanValidate (typeof (long)), "A3"); }