}

  @GwtIncompatible // TODO
  public void testConstantsPowersOf10() {
    for (int i = 0; i < LongMath.powersOf10.length; i++) {
      assertEquals(LongMath.checkedPow(10, i), LongMath.powersOf10[i]);
    }
    assertThrows(
        ArithmeticException.class, () -> LongMath.checkedPow(10, LongMath.powersOf10.length));
  }

  @GwtIncompatible // TODO
  public void testConstantsHalfPowersOf10() {

        /* actual= */ IntMath.MAX_POWER_OF_SQRT2_UNSIGNED);
  }

  @GwtIncompatible // pow()
  public void testConstantsPowersOf10() {
    for (int i = 0; i < IntMath.powersOf10.length - 1; i++) {
      assertEquals(IntMath.pow(10, i), IntMath.powersOf10[i]);
    }
  }

  @GwtIncompatible // BigIntegerMath // TODO(cpovirk): GWT-enable BigIntegerMath
  public void testMaxLog10ForLeadingZeros() {

  // TODO(kevinb): remove after this warning is disabled globally
  public static int log10(long x, RoundingMode mode) {
    checkPositive("x", x);
    int logFloor = log10Floor(x);
    long floorPow = powersOf10[logFloor];
    switch (mode) {
      case UNNECESSARY:
        checkRoundingUnnecessary(x == floorPow);
      // fall through
      case FLOOR:
      case DOWN:
        return logFloor;