public void ConverterExtension_Tests()
{
Assert.Null(NaN.ToInt32());
Assert.Null(Unconvertible_NaN.ToInt32());
Assert.NotNull(Unconvertible_Num.ToInt32());
Assert.Equal(9527, Unconvertible_Num.ToInt32());
Assert.Null(NaN.ToInt64());
Assert.Null(Unconvertible_NaN.ToInt64());
Assert.NotNull(Unconvertible_Num.ToInt64());
Assert.Equal(9527L, Unconvertible_Num.ToInt64());
Assert.Null(NaN.ToDouble());
Assert.Null(Unconvertible_NaN.ToDouble());
Assert.NotNull(Unconvertible_Num.ToDouble());
Assert.Equal(9527D, Unconvertible_Num.ToDouble());
Assert.Null(NaN.ToDecimal());
Assert.Null(Unconvertible_NaN.ToDecimal());
Assert.NotNull(Unconvertible_Num.ToDecimal());
Assert.Equal(9527M, Unconvertible_Num.ToDecimal());
Assert.Null(NaDate.ToDateTime());
Assert.Null(Unconvertible_NaDate.ToDateTime());
DateTime date = DateTime.Parse(DateTime.Now.ToString(CultureInfo.InvariantCulture));
var unconvertible_Date = new TestDate(date);
Assert.NotNull(unconvertible_Date.ToDateTime());
Assert.Equal(date, unconvertible_Date.ToDateTime());
Assert.Equal(date.Date, unconvertible_Date.ToDate());
}