public void ToUlongMinOver()
 {
     Assert.ThrowsException <OverflowException>(() => {
         var castedVal = BigUInteger.ToUInt64(new BigUInteger(ulong.MinValue) - 1);
     });
 }
 public void ToUlongFractional()
 {
     ExecTest <ulong>(BigUInteger.ToUInt64(new BigUInteger(5) / 2), 2);
 }
 public void ToUlongMin()
 {
     ExecTest <ulong>(BigUInteger.ToUInt64(new BigUInteger(ulong.MinValue)), ulong.MinValue);
 }