public static void negate(Slice decimal)
    {
        setNegative(decimal, !isNegative(decimal));
    }
@Test
    public void testUnscaledBigIntegerToDecimal()
    {
        assertConvertsUnscaledBigIntegerToDecimal(MAX_DECIMAL_UNSCALED_VALUE);
        assertConvertsUnscaledBigIntegerToDecimal(MIN_DECIMAL_UNSCALED_VALUE);
        assertConvertsUnscaledBigIntegerToDecimal(BigInteger.ZERO);
        assertConvertsUnscaledBigIntegerToDecimal(BigInteger.ONE);
        assertConvertsUnscaledBigIntegerToDecimal(BigInteger.ONE.negate());
    }