/*
 * Copyright (c) 2012, 2018, 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
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 * questions.
 */

/*
 * @test
 * @bug 7198073 7197662
 * @summary Tests that user preferences are stored in the permanent storage
 * @library /test/lib
 * @run main/othervm -Djava.util.prefs.userRoot=. CheckUserPrefsStorage
 */

import java.util.prefs.Preferences;

import jdk.test.lib.process.ProcessTools;

public class CheckUserPrefsStorage {

    private static final Class PREF_NODE = CheckUserPrefsStorage.class;
    private static final String KEY = "Check";
    private static final String VALUE = "Success";
    private static final Preferences prefs = Preferences.userNodeForPackage(PREF_NODE);

    public static void main(String[] args) throws Throwable {
        if (args.length == 0) {
            createPref(KEY, VALUE);
            ProcessTools.executeTestJvm("-Djava.util.prefs.userRoot=.",
                                        PREF_NODE.getName(),
                                        KEY,
                                        VALUE)
                        .outputTo(System.out)
                        .errorTo(System.out)
                        .shouldHaveExitValue(0);
        } else {
            checkPref(args[0], args[1]);
        }
    }

    public static void createPref(String key, String value) throws Exception {
        prefs.put(key, value);
        prefs.flush();
    }

    public static void checkPref(String key, String value) throws Exception {
        String result = prefs.get(key, null);
        if ((result == null) || !(result.equals(value))) {
            throw new RuntimeException("User pref not stored!");
        }
        prefs.remove(key);
        prefs.flush();
    }

}