public void EuclideanAlgorithm_ThrowsArgumentException()
 {
     int[] numbers = new int[] { };
     Assert.Throws <ArgumentException>(() => GCDSeeker.EuclideanAlgorithm(numbers));
 }
 public int EuclideanAlgorithmTests(params int[] numbers)
 {
     return(GCDSeeker.EuclideanAlgorithm(numbers));
 }