public void NumberToWords_Negative()
{
var testInput = -14;
var result = NumberConverterService.NumberToWords(testInput);
Assert.IsNotNull(result);
Assert.AreNotEqual("", result);
Assert.AreEqual("NEGATIVE FOURTEEN", result.ToUpper());
}
public void NumberToWords_Max()
{
var testInput = 2147483647;
var result = NumberConverterService.NumberToWords(testInput);
Assert.IsNotNull(result);
Assert.AreNotEqual("", result);
Assert.AreEqual("TWO THOUSAND ONE HUNDRED AND FORTY - SEVEN MILLION FOUR HUNDRED AND EIGHTY - THREE THOUSAND SIX HUNDRED AND FORTY - SEVEN", result.ToUpper());
}
public void NumberToWords_MillionThousandHundred()
{
var testInput = 123456789;
var result = NumberConverterService.NumberToWords(testInput);
Assert.IsNotNull(result);
Assert.AreNotEqual("", result);
Assert.AreEqual("ONE HUNDRED AND TWENTY - THREE MILLION FOUR HUNDRED AND FIFTY - SIX THOUSAND SEVEN HUNDRED AND EIGHTY - NINE", result.ToUpper());
}
public void NumberToWords_Million()
{
var testInput = 123000000;
var result = NumberConverterService.NumberToWords(testInput);
Assert.IsNotNull(result);
Assert.AreNotEqual("", result);
Assert.AreEqual("ONE HUNDRED AND TWENTY - THREE MILLION", result.ToUpper());
}
public void NumberToWords_Teen()
{
var testInput = 12;
var result = NumberConverterService.NumberToWords(testInput);
Assert.IsNotNull(result);
Assert.AreNotEqual("", result);
Assert.AreEqual("TWELVE", result.ToUpper());
}
public void NumberToWords_Zero()
{
var testInput = 0;
var result = NumberConverterService.NumberToWords(testInput);
Assert.IsNotNull(result);
Assert.AreNotEqual("", result);
Assert.AreEqual("ZERO", result.ToUpper());
}