public void Add_EmptyString_ReturnsZero()
{
var sut = new StringCalculator20191203();
var result = sut.Add("");
Assert.AreEqual(0, result);
}
public void Add_NumbersGreaterThan1000_AreIgnored(string numbers, int expectedSum)
{
var sut = new StringCalculator20191203();
var result = sut.Add(numbers);
Assert.AreEqual(expectedSum, result);
}
public void Add_MultiCharacterDelimiters_AreValid()
{
var sut = new StringCalculator20191203();
var result = sut.Add("//[***]\n1***5***8");
Assert.AreEqual(14, result);
}
public void Add_NegativeValues_ThrowsExceptionWithMessageContainingTheInvalidValues(string numbers, string expectedErrorMessage)
{
var sut = new StringCalculator20191203();
var exception = Assert.ThrowsException <Exception>(() => sut.Add(numbers));
Assert.IsTrue(exception.Message.Contains(expectedErrorMessage));
}
public void Add_DelimiterSpecifiedOnFirstLine_UsesSpecifiedDelimiterOnTopOfDefaultDelimiters()
{
var sut = new StringCalculator20191203();
var result = sut.Add("//;\n1;7");
Assert.AreEqual(8, result);
}
public void Add_NumbersSeparatedByLNewLines_IsAlsoValid()
{
var sut = new StringCalculator20191203();
var result = sut.Add("1\n5");
Assert.AreEqual(6, result);
}
public void Add_MultipleNumbersSeparatedByComma_ReturnsSumOfNumbers(string numbers, int expectedSum)
{
var sut = new StringCalculator20191203();
var result = sut.Add(numbers);
Assert.AreEqual(expectedSum, result);
}
public void Add_SingleNumber_ReturnsNumber()
{
var sut = new StringCalculator20191203();
var result = sut.Add("5");
Assert.AreEqual(5, result);
}
