String overflowAsString = Long.toString(overflow, radix);
            UnsignedInts.parseUnsignedInt(overflowAsString, radix);
          });
    }
  }

  public void testParseIntThrowsExceptionForInvalidRadix() {
    // Valid radix values are Character.MIN_RADIX to Character.MAX_RADIX,
    // inclusive.
    //
    // Note: According to the spec, a NumberFormatException is thrown for a number that is not