public void NegativeFactorialShouldThrowArgumentOutOfRangeException()
{
// Arrange
ChallengesSet04 challenger = new ChallengesSet04();
int negative1 = -1;
int negative2 = -2;
int negative3 = -3;
// Act
Action actual1 = () => challenger.Factorial(negative1);
Action actual2 = () => challenger.Factorial(negative2);
Action actual3 = () => challenger.Factorial(negative3);
// Assert
Assert.Throws <ArgumentOutOfRangeException>(actual1);
Assert.Throws <ArgumentOutOfRangeException>(actual2);
Assert.Throws <ArgumentOutOfRangeException>(actual3);
}
public void Factorial(int number, int expected)
{
// Arrange
ChallengesSet04 challenger = new ChallengesSet04();
// Act
int actual = challenger.Factorial(number);
// Assert
Assert.Equal(expected, actual);
}
