public BigInteger[] GetFibonacciSequence_Method_Works_Properly(int count)
 {
     return(FibonacciSequence.GetFibonacciSequence(count).ToArray());
 }
 public void GetFibonacciSequence_Method_Throws_ArgumentNullException(int count)
 {
     Assert.Throws <ArgumentNullException>(
         () => FibonacciSequence.GetFibonacciSequence(count).ToArray());
 }