public void returns_0_if_empty_string()
{
Calculator calc = new Calculator();
int result = calc.Add("");
Assert.That(result, Is.EqualTo(0));
}
public void returns_the_same_number_when_you_pass_1_number()
{
Calculator calc = new Calculator();
int result = calc.Add("26");
Assert.That(result, Is.EqualTo(26));
}
public void AddAnyAmountOfNumbersReturnsCorrectResult(Calculator sut, int count, Generator<int> generator)
{
var integers = generator.Take(count+2).ToArray();
var numbers = string.Join(",", integers);
var actual = sut.Add(numbers);
var expected = integers.Sum();
Assert.Equal(expected, actual);
}
public void AddIgnoresBigNumbers(Calculator sut, int smallSeed, int bigSeed)
{
var x = Math.Min(smallSeed, 1000);
var y = bigSeed + 1000;
var numbers = string.Join(",", x, y);
var actual = sut.Add(numbers);
Assert.Equal(x, actual);
}
public void Add_LongDelimeter()
{
// arrange
string str1 = "//[***]\n1***9***3";
Calculator calc = new Calculator();
//act
int expected = 13;
// assert
int actual = calc.Add(str1);
Assert.AreEqual(expected, actual, "Not correctly");
}
public void Add_GreaterThanThousand()
{
// arrange
string str1 = "1\n2002,3\n5";
Calculator calc = new Calculator();
//act
int expected = 9;
// assert
int actual = calc.Add(str1);
Assert.AreEqual(expected, actual, "Not correctly");
}
public void Add_DelimeterOfOtherLength()
{
// arrange
string str1 = "//[**]\n1**5**6**2";
Calculator calc = new Calculator();
//act
int expected = 14;
// assert
int actual = calc.Add(str1);
Assert.AreEqual(expected, actual, "Not correctly");
}
public void AddLineWithCustomDelimiterStringsReturnsCorrectResult(Calculator sut,
string delimiter1,
string delimiter2,
int x,
int y,
int z)
{
var numbers = string.Format("//[{0}][{1}]\n{2}{0}{3}{1}{4}",
delimiter1,
delimiter2,
x,
y,
z);
var actual = sut.Add(numbers);
var expected = x + y + z;
Assert.Equal(expected, actual);
}
public void AddTwoNumbersReturnsCorrectResult(Calculator sut, int x, int y)
{
var numbers = string.Join(",", x, y);
var actual = sut.Add(numbers);
Assert.Equal(x + y, actual);
}
public void AddLineWithNegativeNumbersThrowsCorrectException(Calculator sut, int x, int y, int z)
{
var numbers = string.Join(",", -x, y, -z);
var e = Assert.Throws<ArgumentOutOfRangeException>(() => sut.Add(numbers));
Assert.True(e.Message.StartsWith("Negatives not allowed."));
Assert.Contains((-x).ToString(), e.Message);
Assert.Contains((-z).ToString(), e.Message);
}
public void returns_the_sum_of_2_numbers()
{
Calculator calc = new Calculator();
int result = calc.Add("20,15");
Assert.That(result,Is.EqualTo(35));
}
public void Add_ChangeDelimeter()
{
// arrange
string str1 = "//;\n1;2;8;10";
Calculator calc = new Calculator();
//act
int expected = 21;
// assert
int actual = calc.Add(str1);
Assert.AreEqual(expected, actual, "Not correctly");
}
public void Add_NegativeNumber()
{
// arrange
string str1 = "//;\n1;2;-8;10";
Calculator calc = new Calculator();
//act
int expected = 13;
// assert
int actual = calc.Add(str1);
Assert.AreEqual(expected, actual, "Not correctly");
}
public void AddLineWithCustomDelimiterReturnsCorrrectResult(Calculator sut,
Generator<char> charGenerator,
Generator<int> intGenerator,
int count)
{
int dummy;
var delimiter = charGenerator.Where(c => !int.TryParse(c.ToString(), out dummy) &&
c != '-').First();
var integers = intGenerator.Take(count).ToArray();
var numbers = string.Format("//{0}\n{1}", delimiter, string.Join(delimiter.ToString(), integers));
var actual = sut.Add(numbers);
var expected = integers.Sum();
Assert.Equal(expected, actual);
}
public void AddReturnZeroWhenSuppliedEmptyOrNullString(string numbers)
{
var result = Calculator.Add(numbers);
Assert.That(result, Is.EqualTo(0));
}
public void Add_StringWithNewLine()
{
// arrange
string str1 = "1\n2,3";
Calculator calc = new Calculator();
//act
int expected = 6;
// assert
int actual = calc.Add(str1);
Assert.AreEqual(expected, actual, "Not correctly");
}
static void Main(string[] args)
{
Calculator calc = new Calculator();
Console.WriteLine("sum = {0}", calc.Add("//[**]\n1**1**1**1"));
Console.ReadLine();
}
public void Add_SeveralDelimeters()
{
// arrange
string str1 = "//[*][%]\n1*2%3";
Calculator calc = new Calculator();
//act
int expected = 6;
// assert
int actual = calc.Add(str1);
Assert.AreEqual(expected, actual, "Not correctly");
}
public void Add_SimpleString()
{
// arrange
string str1 = "1,2,6,15";
Calculator calc = new Calculator();
//act
int expected = 24;
// assert
int actual = calc.Add(str1);
Assert.AreEqual(expected, actual, "Not correctly");
}
public void AddReturnSumWhenSuppliedMultipleNumbersInString(string numbers, int expectedResult)
{
var result = Calculator.Add(numbers);
Assert.That(result, Is.EqualTo(expectedResult));
}
public void AddSingleNumberReturnsCorrectResult(Calculator sut, int expected)
{
var numbers = expected.ToString();
var actual = sut.Add(numbers);
Assert.Equal(expected, actual);
}
public void AddWhenGivenDefinedDelimiterUsesThatDelimiter(string input, int expectation)
{
var result = Calculator.Add(input);
Assert.That(result, Is.EqualTo(expectation));
}
public void AddWithLineBreakAndCommaAsDelimitersReturnsCorrectResult(Calculator sut, int x, int y, int z)
{
var numbers = string.Format("{0}\n{1},{2}", x, y, z);
var actual = sut.Add(numbers);
Assert.Equal(x + y + z, actual);
}
private void sum(string value, int equalTo)
{
var result = calculator.Add(value);
Assert.AreEqual(equalTo, result);
}
public void EmptyStringReturns0()
{
var actual = _calculator.Add(string.Empty);
Assert.Equal(0, actual);
}
public void AddEmptyReturnsCorrectResult( Calculator sut )
{
var numbers = "";
int actual = sut.Add(numbers);
Assert.Equal(0, actual);
}
public void AddLineWithCustomDelimiterStringREturnsCorrectResult(Calculator sut,
string delimiter,
int count,
Generator<int> intGenerator)
{
var integers = intGenerator.Take(count).ToArray();
var numbers = string.Format("//[{0}]\n{1}",
delimiter,
string.Join(delimiter, integers));
var expected = integers.Sum();
var actual = sut.Add(numbers);
Assert.Equal(expected, actual);
}
public void addingEmptyStringIsZero()
{
int actual = calculator.Add("");
int expected = 0;
Assert.AreEqual(expected, actual, "Empty string should be 0");
}
public void Add_NullString()
{
// arrange
string str1 = "";
Calculator calc = new Calculator();
//act
int expected = 0;
// assert
int actual = calc.Add(str1);
Assert.AreEqual(expected, actual, "Not correctly");
}
public void EmptyStringShouldReturnZeroWhenAdd()
{
var calculator = new Calculator();
Assert.AreEqual(calculator.Add(""), 0);
}