/*

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

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 */

/*

 * @test

 * @bug 4136371 5017980 6576055

 * @summary Test Short.decode method

 * @author madbot

 * @author Joseph D. Darcy

 */

/**

 * There are six methods in java.lang.Short which transform strings

 * into a short or Short value:

 *

 * public Short(String s)

 * public static Short decode(String nm)

 * public static short parseShort(String s, int radix)

 * public static short parseShort(String s)

 * public static Short valueOf(String s, int radix)

 * public static Short valueOf(String s)

 *

 * However, of these only decode has a nontrivial implementation

 * in that class.

 */

public class Decode {

    private static void check(String ashort, short expected) {

        short sh = (Short.decode(ashort)).shortValue();

        if (sh != expected)

            throw new RuntimeException("Short.decode failed. String:" +

                                                ashort + " Result:" + sh);

    }

    private static void checkFailure(String val, String message) {

        try {

            short n = (Short.decode(val)).shortValue();

            throw new RuntimeException(message);

        } catch (NumberFormatException e) { /* Okay */}

    }

    public static void main(String[] args) throws Exception {

        check(new String(""+Short.MIN_VALUE), Short.MIN_VALUE);

        check(new String(""+Short.MAX_VALUE), Short.MAX_VALUE);

        check("10",   (short)10);

        check("0x10", (short)16);

        check("0X10", (short)16);

        check("010",  (short)8);

        check("#10",  (short)16);

        check("+10",   (short)10);

        check("+0x10", (short)16);

        check("+0X10", (short)16);

        check("+010",  (short)8);

        check("+#10",  (short)16);

        check("-10",   (short)-10);

        check("-0x10", (short)-16);

        check("-0X10", (short)-16);

        check("-010",  (short)-8);

        check("-#10",  (short)-16);

        check(Integer.toString((int)Short.MIN_VALUE), Short.MIN_VALUE);

        check(Integer.toString((int)Short.MAX_VALUE), Short.MAX_VALUE);

        checkFailure("0x-10",   "Short.decode allows negative sign in wrong position.");

        checkFailure("0x+10",   "Short.decode allows positive sign in wrong position.");

        checkFailure("+",       "Raw plus sign allowed.");

        checkFailure("-",       "Raw minus sign allowed.");

        checkFailure(Integer.toString((int)Short.MIN_VALUE - 1), "Out of range");

        checkFailure(Integer.toString((int)Short.MAX_VALUE + 1), "Out of range");

        checkFailure("", "Empty String");

    }

}