public void should_handle_new_lines_between_numbers()
{
//arrange
var calc = new StringCalcClass();
//act
var result = calc.Add("1\n2,3");
//assert
result.ShouldBeEquivalentTo(6);
}
public void should_handle_for_multiple_any_length_delimiter()
{
//arrange
var calc = new StringCalcClass();
//act
var result = calc.Add("//[**][%][---]\n1**2%3---1");
//assert
result.ShouldBeEquivalentTo(7);
}
public void should_handle_for_multiple_delimiter()
{
//arrange
var calc = new StringCalcClass();
//act
var result = calc.Add("//[*][%]\n1*2%3");
//assert
result.ShouldBeEquivalentTo(6);
}
public void should_handle_change_delimiter()
{
//arrange
var calc = new StringCalcClass();
//act
var result = calc.Add("//;\n1;2");
//assert
result.ShouldBeEquivalentTo(3);
}
public void should_handle_for_any_length_delimiter()
{
//arrange
var calc = new StringCalcClass();
//act
var result = calc.Add("//[***]\n1***2***3");
//assert
result.ShouldBeEquivalentTo(6);
}
public void should_handle_unknown_amount_of_numbers()
{
//arrange
var calc = new StringCalcClass();
var rand = new Random();
var digitsNumber = rand.Next(10);
var digits = new List<int>();
for (int i = 0; i < digitsNumber; i++)
{
digits.Add(rand.Next(10));
}
//act
var result = calc.Add(string.Join(",",digits));
//assert
result.ShouldBeEquivalentTo(digits.Sum());
}
public void should_handle_two_digits()
{
//arrange
var calc = new StringCalcClass();
var rand = new Random();
int one = rand.Next(10);
int two = rand.Next(10);
//act
var result = calc.Add(one + "," + two);
//assert
result.ShouldBeEquivalentTo(one + two);
}
public void should_return_zero_for_empty_string()
{
//arrange
var calc = new StringCalcClass();
//act
var result = calc.Add("");
//assert
result.ShouldBeEquivalentTo(0);
}
public void should_return_sum_for_two_digits()
{
//arrange
var calc = new StringCalcClass();
//act
var result = calc.Add("1,2");
//assert
result.ShouldBeEquivalentTo(3);
}
public void should_return_one_for_one()
{
//arrange
var calc = new StringCalcClass();
//act
var result = calc.Add("1");
//assert
result.ShouldBeEquivalentTo(1);
}
public void should_return_number_for_simple_number_string()
{
//arrange
var calc = new StringCalcClass();
int number = new Random().Next(10);
//act
var result = calc.Add(number.ToString());
//assert
result.ShouldBeEquivalentTo(number);
}
public void should_return_exception_for_negative_number()
{
//arrange
var calc = new StringCalcClass();
//act && assert
Assert.Throws<ArgumentException>(() => calc.Add("-1"));
}
public void should_return_exception_for_all_negative_numbers()
{
//arrange
var calc = new StringCalcClass();
//act && assert
var exc = Assert.Throws<ArgumentException>(() => calc.Add("-1,0,-4,4,-2"));
StringAssert.Contains("-1,-4,-2", exc.Message);
}
public void should_ignore_numbers_more_thousand()
{
//arrange
var calc = new StringCalcClass();
//act
var res = calc.Add("2,1001");
//assert
res.ShouldBeEquivalentTo(2);
}