public void IsValidTest(string cultureInfoStr, string amountInNumbers, bool expected)
{
CultureInfo cultureInfo = new CultureInfo(cultureInfoStr);
CurrencyValidator currencyValidator = new CurrencyValidator(cultureInfo, 6, 2);
Assert.Equal(currencyValidator.IsValid(amountInNumbers), expected);
}
public string ConvertCurrencyToWords(decimal currency)
{
if (!CurrencyValidator.IsValid(currency))
{
throw new InvalidOperationException("Currency is out of range!");
}
int dollars = (int)Math.Floor(currency);
int cents = (int)((currency - dollars) * 100);
return($"{GetDollarPartString(dollars)}{GetCentsPartString(cents)}");
}
/// <summary>
/// Converts numbers to english speaking text.
/// </summary>
/// <param name="amountInNumbers">Eg: $123,567.11 or $123.567,11 depending on your culture</param>
/// <returns>For english speking words for given number. For instance: one quadrillion two hundred thirty four trillion five hundred sixty seven billion eight hundred ninety one million two hundred thirty four thousand five hundred sixty seven</returns>
public string NumberToWords(string amountInNumbers)
{
if (!currencyValidator.IsValid(amountInNumbers))
{
throw new ArgumentException($"{nameof(amountInNumbers)} is not a valid money numbers");
}
amountInNumbers = amountInNumbers.Replace(cultureInfo.NumberFormat.CurrencySymbol, string.Empty).ToLower().Trim();
List <string> dollarsAndCents = amountInNumbers.Split(cultureInfo.NumberFormat.CurrencyDecimalSeparator.ToCharArray()[0]).ToList();
string amountIntText = "";
amountIntText = $"{NumberConverter.NumberToText(long.Parse(dollarsAndCents[0].Replace(cultureInfo.NumberFormat.CurrencyGroupSeparator, "")))} dollar(s)";
if (dollarsAndCents.Count > 1)
{
amountIntText += $" {NumberConverter.NumberToText(long.Parse(dollarsAndCents[1]))} cent(s)";
}
return(amountIntText);
}
/// <summary>
/// Sets the value of the IsValid property.
/// </summary>
private void SetIsValid()
{
IsValid = CurrencyValidator.IsValid(USDCurrency);
}
