public void FactorialRec_Test_Fact()
{
int input = 4;
int ans = 3;
Assert.Equal(72, r.FactorialRec(input, ans));
}
public void FactorialRecTestFact()
{
int input = 4;
int ans = 1;
Assert.Equal(24, r.FactorialRec(input, ans));
}
public void FactorialRecTest2(int expected, int input)
{
RecursiveCalc rec = new RecursiveCalc();
int ans = 1;
Assert.Equal(expected, rec.FactorialRec(input, ans));
}