public void InstantiationSupplyingNullPropertyNullTypeAndRootException()
		{
			NotWritablePropertyException ex = new NotWritablePropertyException(null, null, null);
			Assert.AreEqual(null, ex.OffendingPropertyName);
			Assert.AreEqual(null, ex.ObjectType);
		}
		public void InstantiationSupplyingPropertyTypeAndRootException()
		{
			NotWritablePropertyException ex = new NotWritablePropertyException("Doctor", typeof (TestObject), null);
			Assert.AreEqual("Doctor", ex.OffendingPropertyName);
			Assert.AreEqual(typeof(TestObject), ex.ObjectType);
		}