public void Should_Correctly_Calculate_Sums_Of_Number_String_Pairs()
{
var results = new List <string>
{
SumStringsAsNumbers.SumStrings("123", "456"),
SumStringsAsNumbers.SumStrings("15", "5"),
SumStringsAsNumbers.SumStrings("1500000", "1000000"),
};
var expectedResults = new List <string>
{
"579",
"20",
"2500000",
};
results.Should().BeEquivalentTo(expectedResults);
}
public void SumString_With0AtHeadOfInput(string firstInput, string secondInput, string sum)
{
Assert.AreEqual(sum, SumStringsAsNumbers.SumStrings(firstInput, secondInput));
}
public void SumString_WithCarryExceptFirstDigit(string firstInput, string secondInput, string sum)
{
Assert.AreEqual(sum, SumStringsAsNumbers.SumStrings(firstInput, secondInput));
}
public void SumString_InputsAreDifferentDigitsWithoutCarry(string firstInput, string secondInput, string sum)
{
Assert.AreEqual(sum, SumStringsAsNumbers.SumStrings(firstInput, secondInput));
}