/*

 * Copyright (c) 2005, Oracle and/or its affiliates. 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 6301089

 * @summary test Collections.newSetFromMap

 * @author Martin Buchholz

 */

public class SetFromMap {

    static volatile int passed = 0, failed = 0;

    static void pass() { passed++; }

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

    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 {System.out.println(x + " not equal to " + y); fail(); }}

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

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

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

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

    }

    private static void realMain() throws Throwable {

        try {

            Map<String,Boolean> m = new IdentityHashMap<>();

            Set<String> s = Collections.newSetFromMap(m);

            String foo1 = new String("foo");

            String foo2 = new String("foo");

            String bar = new String("bar");

            check(s.add(foo1));

            check(s.add(foo2));

            check(s.add(bar));

            equal(s.size(), 3);

            check(s.contains(foo1));

            check(s.contains(foo2));

            check(! s.contains(new String(foo1)));

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

    }

}