public void SHOULD_sum_repeated_characters(string romanNumber, int expected)
{
var sut = new RomanNumbersConverter();
var result = sut.ToInteger(romanNumber);
Assert.That(result, Is.EqualTo(expected));
}
public void WHEN_empty_string_passed_THEN_returns_zero()
{
var sut = new RomanNumbersConverter();
var result = sut.ToInteger(string.Empty);
Assert.That(result, Is.Zero);
}
public void ThrowNotImplEx_WhenInputTenThousandAndMore()
{
var converter = new RomanNumbersConverter(new RomanTable(RomanTableOptions.GetDefault));
var input = "10000";
Assert.Throws <NotImplementedException>(() => converter.FromArabic(input));
}
public void ForZero_ShouldBeEmptyString()
{
var converter = new RomanNumbersConverter(new RomanTable(RomanTableOptions.GetDefault));
var input = "0";
Assert.Equal(string.Empty, converter.FromArabic(input));
}
public void ThrowArgumentOutOfRangeEx_WhenNegativeInputNumber()
{
var converter = new RomanNumbersConverter(new RomanTable(RomanTableOptions.GetDefault));
var input = "-1";
Assert.Throws <ArgumentOutOfRangeException>(() => converter.FromArabic(input));
}
public void ThrowInvalidOperationEx_WhenBadInputNumberFormat()
{
var converter = new RomanNumbersConverter(new RomanTable(RomanTableOptions.GetDefault));
var input = "abc123";
Assert.Throws <InvalidOperationException>(() => converter.FromArabic(input));
}
public void SHOULD_allow_reverted_order_for_subtraction()
{
var numberWithSubtraction = "LIX";
var sut = new RomanNumbersConverter();
Assert.DoesNotThrow(() => sut.ToInteger(numberWithSubtraction));
}
public void WHEN_valid_characters_passed_THEN_doesnt_throw_exception()
{
var validNumber = "CX";
var sut = new RomanNumbersConverter();
Assert.DoesNotThrow(() => sut.ToInteger(validNumber));
}
public void SHOULD_validate_characters_case_insensitive()
{
var validNumber = "cX";
var sut = new RomanNumbersConverter();
Assert.DoesNotThrow(() => sut.ToInteger(validNumber));
}
public void ForNinety_ShouldConvertCorrectly()
{
var converter = new RomanNumbersConverter(new RomanTable(RomanTableOptions.GetDefault));
var inputNumber = "90";
var outputNumber = converter.FromArabic(inputNumber);
Assert.Equal("XC", outputNumber);
}
public void ForEightHundred_ShouldConvertCorrectly()
{
var converter = new RomanNumbersConverter(new RomanTable(RomanTableOptions.GetDefault));
var inputNumber = "800";
var outputNumber = converter.FromArabic(inputNumber);
Assert.Equal("DCCC", outputNumber);
}
public void ForTwentyThree_ShouldConvertCorrectly()
{
var converter = new RomanNumbersConverter(new RomanTable(RomanTableOptions.GetDefault));
var inputNumber = "23";
var outputNumber = converter.FromArabic(inputNumber);
Assert.Equal("XXIII", outputNumber);
}
public void ForNineHundredSeventyFive_ShouldConvertCorrectly()
{
var converter = new RomanNumbersConverter(new RomanTable(RomanTableOptions.GetDefault));
var inputNumber = "975";
var outputNumber = converter.FromArabic(inputNumber);
Assert.Equal("CMLXXV", outputNumber);
}
public void ForThreeHundredTwelve_ShouldConvertCorrectly()
{
var converter = new RomanNumbersConverter(new RomanTable(RomanTableOptions.GetDefault));
var inputNumber = "312";
var outputNumber = converter.FromArabic(inputNumber);
Assert.Equal("CCCXII", outputNumber);
}
public void ForTwoThousandEight_ShouldConvertCorrectly()
{
var converter = new RomanNumbersConverter(new RomanTable(RomanTableOptions.GetDefault));
var inputNumber = "2008";
var outputNumber = converter.FromArabic(inputNumber);
Assert.Equal("MMVIII", outputNumber);
}
public void ForThirtySevenTwentyOne_ShouldConvertCorrectly()
{
var converter = new RomanNumbersConverter(new RomanTable(RomanTableOptions.GetDefault));
var inputNumber = "3721";
var outputNumber = converter.FromArabic(inputNumber);
Assert.Equal("MMMDCCXXI", outputNumber);
}
public void SHOULD_convert_complex_numbers()
{
var complexNumber = "MCMXLVIII";
var expected = 1948;
var sut = new RomanNumbersConverter();
var result = sut.ToInteger(complexNumber);
Assert.That(result, Is.EqualTo(expected));
}
public void ReturnRoman_WhenConverting_GivenInputIsGreaterThanThree(int number, string expectedRoman)
{
var roman = RomanNumbersConverter.Convert(number);
roman.Should().Be(expectedRoman);
}
public string ReturnRoman_WhenConverting_TestResults(int number)
{
return(RomanNumbersConverter.Convert(number));
}
public void WHEN_invalid_order_THEN_should_throw_exception(string romanNumber)
{
var sut = new RomanNumbersConverter();
Assert.Throws <Exception>(() => sut.ToInteger(romanNumber));
}
public void ThrowArgumentNullEx_WhenInputNull()
{
var converter = new RomanNumbersConverter(new RomanTable(RomanTableOptions.GetDefault));
Assert.Throws <ArgumentNullException>(() => converter.FromArabic(null));
}
public string ReturnRoman_WhenConverting_GivenInputIsGreaterThanNineHundred(int number)
{
return(RomanNumbersConverter.Convert(number));
}
public void WHEN_null_string_passed_THEN_throws_ArgumentNullException()
{
var sut = new RomanNumbersConverter();
Assert.Throws <ArgumentNullException>(() => sut.ToInteger(null));
}
public void WHEN_invalid_character_passed_THEN_throws_ArgumentException()
{
var sut = new RomanNumbersConverter();
Assert.Throws <ArgumentException>(() => sut.ToInteger("IIzI"));
}
