assertEquals(expected.toBigInteger(), DoubleMath.roundToBigInteger(d, mode));
      }
    }
  }

  @GwtIncompatible // DoubleMath.roundToBigInteger(double, RoundingMode)
  public void testRoundExactIntegralDoubleToBigInteger() {
    for (double d : INTEGRAL_DOUBLE_CANDIDATES) {
      BigDecimal expected = new BigDecimal(d).setScale(0, UNNECESSARY);