public void TestDecimalConversion()
{
var converter = new DecimalConverter();
Assert.True(Math.Abs((decimal)converter.ConvertFromString("123.33", CULTURE, typeof(decimal)) - ((decimal)123.33)) < (decimal)0.001);
Assert.True(Math.Abs((decimal)converter.ConvertFromString("0.0000002347", CULTURE, typeof(decimal)) - ((decimal)0.0000002347)) < (decimal)0.00000000001);
Assert.True(Math.Abs((decimal)converter.ConvertFromString("-0.0000002347", CULTURE, typeof(decimal)) - ((decimal) - 0.0000002347)) < (decimal)0.00000000001);
Assert.True(Math.Abs((decimal)converter.ConvertFromString("-987347.2304757", CULTURE, typeof(decimal)) - ((decimal) - 987347.2304757)) < (decimal)0.00000001);
Assert.True(Math.Abs((decimal)converter.ConvertFromString("123.33", CULTURE, typeof(decimal?)) - ((decimal)123.33)) < (decimal)0.001);
Assert.True(Math.Abs((decimal)converter.ConvertFromString("0.0000002347", CULTURE, typeof(decimal?)) - ((decimal)0.0000002347)) < (decimal)0.00000000001);
Assert.True(Math.Abs((decimal)converter.ConvertFromString("-0.0000002347", CULTURE, typeof(decimal?)) - ((decimal) - 0.0000002347)) < (decimal)0.00000000001);
Assert.True(Math.Abs((decimal)converter.ConvertFromString("-987347.2304757", CULTURE, typeof(decimal?)) - ((decimal) - 987347.2304757)) < (decimal)0.00000001);
Assert.True(Math.Abs((decimal)converter.ConvertFromString("1.227e-4", CULTURE, typeof(decimal)) - ((decimal)1.227e-4)) < (decimal)0.00000001);
Assert.AreEqual((decimal)0, converter.ConvertFromString("0", CULTURE, typeof(decimal)));
Assert.AreEqual((decimal)0, converter.ConvertFromString("0", CULTURE, typeof(decimal?)));
Assert.Null(converter.ConvertFromString("", CULTURE, typeof(decimal?)));
Assert.Throws <FormatException>(() => converter.ConvertFromString("", CULTURE, typeof(decimal)));
}
/// <summary>
/// Возвращает один из предустановленных конвертеров для преобразования значений типа <paramref name="type"/> из строк.
/// </summary>
/// <param name="type">Тип значения для преобразования.</param>
/// <param name="format">Используемый формат преобразования. Если не задан, используется формат по умолчанию.</param>
public static IConverter GetConverterForType(Type type, string format = "")
{
type = Nullable.GetUnderlyingType(type) ?? type;
if (BooleanConverter.CanConvertTo(type))
{
return(new BooleanConverter());
}
if (TransparentConverter.CanConvertTo(type))
{
return(TransparentConverter.Instance);
}
if (NumberConverter.CanConvertTo(type))
{
return(new NumberConverter());
}
if (DecimalConverter.CanConvertTo(type))
{
return(new DecimalConverter());
}
if (TimeSpanConverter.CanConvertTo(type))
{
return(new TimeSpanConverter(format));
}
if (DateTimeConverter.CanConvertTo(type))
{
return(new DateTimeConverter(format));
}
if (EnumConverter.CanConvertTo(type))
{
return(new EnumConverter());
}
if (CollectionConverter.CanConvertFrom(type))
{
return(new CollectionConverter(GetConverterForType(CollectionConverter.GetElementType(type), format)));
}
throw new InvalidOperationException("failed to find suitable converter for type " + type);
}
