/*

 * Copyright 2009 Google, Inc.  All Rights Reserved.

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

 *

 * This code is free software; you can redistribute it and/or modify it

 * 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.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/*

 * @test

 * @bug 4245470 7088913

 * @summary Test the primitive wrappers hashCode()

 */

import java.util.Objects;

import java.util.Random;

public class HashCode {

    final Random rnd = new Random();

    void testOrdinals(String args[]) throws Exception {

        long[] longs = {

            Long.MIN_VALUE,

            Integer.MIN_VALUE,

            Short.MIN_VALUE,

            Character.MIN_VALUE,

            Byte.MIN_VALUE,

            -1, 0, 1,

            Byte.MAX_VALUE,

            Character.MAX_VALUE,

            Short.MAX_VALUE,

            Integer.MAX_VALUE,

            Long.MAX_VALUE,

            rnd.nextInt(),

        };

        for (long x : longs) {

            check(    new Long(x).hashCode() == (int)((long)x ^ (long)x>>>32));

            check(Long.valueOf(x).hashCode() == (int)((long)x ^ (long)x>>>32));

            check(  (new Long(x)).hashCode() == Long.hashCode(x));

            check(    new Integer((int)x).hashCode() == (int) x);

            check(Integer.valueOf((int)x).hashCode() == (int) x);

            check(  (new Integer((int)x)).hashCode() == Integer.hashCode((int)x));

            check(    new Short((short)x).hashCode() == (short) x);

            check(Short.valueOf((short)x).hashCode() == (short) x);

            check(         (new Short((short)x)).hashCode() == Short.hashCode((short)x));

            check(    new Character((char) x).hashCode() == (char) x);

            check(Character.valueOf((char) x).hashCode() == (char) x);

            check(         (new Character((char)x)).hashCode() == Character.hashCode((char)x));

            check(    new Byte((byte) x).hashCode() == (byte) x);

            check(Byte.valueOf((byte) x).hashCode() == (byte) x);

            check(         (new Byte((byte)x)).hashCode() == Byte.hashCode((byte)x));

        }

    }

    void testBoolean() {

        check( Boolean.FALSE.hashCode() == 1237);

        check( Boolean.TRUE.hashCode() == 1231);

        check( Boolean.valueOf(false).hashCode() == 1237);

        check( Boolean.valueOf(true).hashCode() == 1231);

        check( (new Boolean(false)).hashCode() == 1237);

        check( (new Boolean(true)).hashCode() == 1231);

        check( Boolean.hashCode(false) == 1237);

        check( Boolean.hashCode(true) == 1231);

    }

    void testFloat() {

        float[] floats = {

            Float.NaN,

            Float.NEGATIVE_INFINITY,

               -1f,

               0f,

               1f,

               Float.POSITIVE_INFINITY

        };

        for(float f : floats) {

            check( Float.hashCode(f) == Float.floatToIntBits(f));

            check( Float.valueOf(f).hashCode() == Float.floatToIntBits(f));

            check( (new Float(f)).hashCode() == Float.floatToIntBits(f));

        }

    }

    void testDouble() {

        double[] doubles = {

            Double.NaN,

            Double.NEGATIVE_INFINITY,

               -1f,

               0f,

               1f,

               Double.POSITIVE_INFINITY

        };

        for(double d : doubles) {

            long bits = Double.doubleToLongBits(d);

            int bitsHash = (int)(bits^(bits>>>32));

            check( Double.hashCode(d) == bitsHash);

            check( Double.valueOf(d).hashCode() == bitsHash);

            check( (new Double(d)).hashCode() == bitsHash);

        }

    }

    //--------------------- Infrastructure ---------------------------

    volatile int passed = 0, failed = 0;

    void pass() {passed++;}

    void fail() {failed++; Thread.dumpStack();}

    void fail(String msg) {System.err.println(msg); fail();}

    void unexpected(Throwable t) {failed++; t.printStackTrace();}

    void check(boolean cond) {if (cond) pass(); else fail();}

    void equal(Object x, Object y) {

        if (Objects.equals(x,y)) pass();

        else fail(x + " not equal to " + y);}

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

        new HashCode().instanceMain(args);}

    public void instanceMain(String[] args) throws Throwable {

        try { testOrdinals(args);

              testBoolean();

                testFloat();

                testDouble();

        } catch (Throwable t) {unexpected(t);}

        System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);

        if (failed > 0) throw new AssertionError("Some tests failed");}

}