public void DelimetersCanBeOfAnylength()
{
Assert.Equal(6, StringCalculator.Add("//[***]\n1***2***3"));
Assert.Equal(6, StringCalculator.Add("//[delimeter]\n1delimeter2delimeter3"));
}
public void HandlesMultipleDelimeters()
{
Assert.Equal(6, StringCalculator.Add("//[-][%]\n1-2%3"));
Assert.Equal(6, StringCalculator.Add("//[delim][*&^]\n1delim2*&^3"));
}
public void EmptyStringReturnsZero()
{
Assert.Equal(0, StringCalculator.Add(""));
}
public void NumbersBiggerThan1000AreIgnored()
{
Assert.Equal(0, StringCalculator.Add("1000"));
Assert.Equal(5, StringCalculator.Add("1000,3,2"));
Assert.Equal(1, StringCalculator.Add(@"//~\1000~1"));
}
public void NegativeNumbersInInputThrowsException()
{
Assert.Throws <Exception>(() => StringCalculator.Add("-1"));
Assert.Throws <Exception>(() => StringCalculator.Add("-1,4"));
}
public void WorksWithCommaAndLineBreakDelimeterMixture()
{
Assert.Equal(6, StringCalculator.Add("1\n2,3"));
}
public void WorksWithLineBreakDelimeter()
{
Assert.Equal(0, StringCalculator.Add("0\n0"));
Assert.Equal(6, StringCalculator.Add("4\n2"));
Assert.Equal(10, StringCalculator.Add("2\n1\n7"));
}
public void ManyNumbersSumCorrectly()
{
Assert.Equal(0, StringCalculator.Add("0,0,0,0,0"));
Assert.Equal(10, StringCalculator.Add("1,2,3,4"));
Assert.Equal(233, StringCalculator.Add("104,51,78"));
}
public void SingleNumbersSumsCorrectly()
{
Assert.Equal(1, StringCalculator.Add("1"));
Assert.Equal(2, StringCalculator.Add("2"));
Assert.Equal(56, StringCalculator.Add("56"));
}