public void TestCalculateFactorial(int n, int expectedFactorial)
{
var factorialCalculator = new FactorialCalculator();
var actualFactorial = factorialCalculator.Factorial(n);
Assert.AreEqual(expectedFactorial, actualFactorial);
}
public void FactorialTest()
{
var fac = new FactorialCalculator();
// var result1 = fac.Factorial(3);
// Console.WriteLine(result1);
var result2 = fac.Factorial(10);
Console.WriteLine(result2);
}
private static double GetNumberOfCombinations(int objectsCount, int objectsCountInCombination)
{
var diff = objectsCount - objectsCountInCombination;
if (diff == 0)
{
return(1);
}
var divident = FactorialCalculator.Factorial(objectsCount);
var divisor = FactorialCalculator.Factorial(objectsCountInCombination) * FactorialCalculator.Factorial(diff);
var numberOfCombinations = divident / divisor;
return(numberOfCombinations);
}
public void TestFactorial()
{
var calculator = new FactorialCalculator();
var expected = Enumerable.Range(1, 10).Select(i => new { i, r = calculator.Factorial(i) }).ToDictionary(key => key.i, value => value.r);
foreach (var pair in expected)
{
Assert.AreEqual(pair.Value, calculator.Calculate(pair.Key).Match(x => x, x => x.Value));
}
foreach (var pair in expected)
{
Assert.AreEqual(pair.Value, calculator.Calculate(pair.Key).Match(x => x, x => x.Value));
}
}
public void Returns_Factorial(int value, int expectedFactorial)
{
var calculatedFactorial = _calculator.Factorial(value);
Assert.AreEqual(expectedFactorial, calculatedFactorial);
}
