public void SumOfDigitsShouldWorkCorrectlyWithNegativeNumber()
{
var summator = new Summator();
var result = summator.SumOfDigits(-123);
Assert.AreEqual(6, result);
}
public void SumOfDigitsShouldWorkCorrectlyWithZero()
{
var summator = new Summator();
var result = summator.SumOfDigits(0);
Assert.AreEqual(0, result);
}
public void SumOfDigitsShouldWorkCorrectlyWithMillions()
{
var summator = new Summator();
var result = summator.SumOfDigits(1111111);
Assert.AreEqual(7, result);
}
public void SumOfDigitsShouldWorkCorrectlyWithLongNumber()
{
var summator = new Summator();
var result = summator.SumOfDigits(9876543210);
Assert.AreEqual(45, result);
}
public void SumOfDigitsShouldWorkCorrectlyForADigit()
{
// Arange
var summator = new Summator();
// Act
var result = summator.SumOfDigits(8);
// Assert
Assert.AreEqual(8, result);
}