/*

 * Copyright 2005 Sun Microsystems, 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

/*

 * @test

 * @bug 4904074 6328220 6330389

 * @summary Basic tests for SimpleEntry, SimpleImmutableEntry

 * @author Martin Buchholz

 */

import java.util.*;

import java.util.concurrent.*;

import static java.util.AbstractMap.*;

public class SimpleEntries {

    private static String k = "foo";

    private static Long v = 1L;

    private static Long v2 = 2L;

    private static void realMain(String[] args) throws Throwable {

        testEntry(new SimpleEntry<String,Long>(k,v));

        testEntry(new SimpleImmutableEntry<String,Long>(k,v));

        testNullEntry(new SimpleEntry<String,Long>(null,null));

        testNullEntry(new SimpleImmutableEntry<String,Long>(null,null));

    }

    private static void testEntry(Map.Entry<String,Long> e) {

        equal(e.getKey(), k);

        equal(e.getValue(), v);

        equal(e, new SimpleEntry<String,Long>(k,v));

        check(! e.equals(new SimpleEntry<String,Long>(k,v2)));

        check(! e.equals(null));

        equal(e, new SimpleImmutableEntry<String,Long>(k,v));

        equal(e.toString(), k+"="+v);

        if (e instanceof SimpleEntry) {

            equal(e.setValue(v2), v);

            equal(e.getValue(), v2);

            equal(e.setValue(null), v2);

            equal(e.getValue(), null);

        } else {

            try { e.setValue(v2); fail(); }

            catch (UnsupportedOperationException t) {}

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

        }

    }

    private static void testNullEntry(Map.Entry<String,Long> e) {

        equal(e.getKey(), null);

        equal(e.getValue(), null);

        equal(e, new SimpleEntry<String,Long>(null, null));

        equal(e, new SimpleImmutableEntry<String,Long>(null, null));

        equal(e.toString(), "null=null");

        if (e instanceof SimpleEntry) {

            equal(e.setValue(v), null);

            equal(e.getValue(), v);

        } else {

            try { e.setValue(null); fail(); }

            catch (UnsupportedOperationException t) {}

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

        }

    }

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

    static volatile int passed = 0, failed = 0;

    static void pass() {passed++;}

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

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

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

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

    static void equal(Object x, Object y) {

        if (x == null ? y == null : x.equals(y)) pass();

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

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

        try {realMain(args);} 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");}

}