public void TaskE1_PositionIsInvalid_ThrowsArgumentException(int position)
 {
     Assert.Throws <ArgumentException>(() => TaskE1.FindFibonachi(position));
 }
 public void TestTaskE1_PositionIsValid(int number, int expected)
 {
     Assert.AreEqual(expected, TaskE1.FindFibonachi(number));
 }