public void Test_Assign() { GEDCOMTag source = null; GEDCOMAddress instance = (GEDCOMAddress)GEDCOMAddress.Create(null, null, "", ""); Assert.Throws(typeof(ArgumentException), () => { instance.Assign(source); }); source = (GEDCOMAddress)GEDCOMAddress.Create(null, null, "", ""); instance.Assign(source); }