public void FindGCDByEuclide_PassNullValue_ThrownArgumentNullException()
 {
     Assert.Throws <ArgumentNullException>(() => GCD.FindGCDByEuclide(null));
 }
 public int FindGCDByEuclide_PassCorrectNegativeNumbers_ReturnedGCD(params int[] numbers)
 => GCD.FindGCDByEuclide(numbers);
 public int FindGCDByEuclide_PassNumberAndZero_ReturnedAbsNumber(int firstNumber, int secondNumber)
 => GCD.FindGCDByEuclide(firstNumber, secondNumber);
 public int FindGCDByEuclide_PassThreeCorrectNonRepeatingNumbers_ReturnedGCD(int firstNumber, int secondNumber, int thirdNumber)
 => GCD.FindGCDByEuclide(firstNumber, secondNumber, thirdNumber);
 public int FindGCDByEuclide_PasstwoCorrectNumbers_ReturnedGCD(int firstNumber, int secondNumber)
 => GCD.FindGCDByEuclide(firstNumber, secondNumber);