/*

 * Copyright (c) 2005, 2013, 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 6346729 6705893

 * @summary Create JavaScript engine and check language and engine version

 */

import javax.script.*;

import java.io.*;

public class VersionTest  {

        private static final String JS_LANG_VERSION = "ECMA - 262 Edition 5.1";

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

            ScriptEngineManager manager = new ScriptEngineManager();

            ScriptEngine jsengine = Helper.getJsEngine(manager);

            if (jsengine == null) {

                System.out.println("Warning: No js engine found; test vacuously passes.");

                return;

            }

            String langVersion = jsengine.getFactory().getLanguageVersion();

            if (! langVersion.equals(JS_LANG_VERSION)) {

                throw new RuntimeException("Expected JavaScript version is " +

                            JS_LANG_VERSION);

            }

            String engineVersion = jsengine.getFactory().getEngineVersion();

            String expectedVersion = getNashornVersion();

            if (! engineVersion.equals(expectedVersion)) {

                throw new RuntimeException("Expected version is " + expectedVersion);

            }

        }

        private static String getNashornVersion() {

            try {

                Class versionClass = Class.forName("jdk.nashorn.internal.runtime.Version");

                return (String) versionClass.getMethod("version").invoke(null);

            } catch (Exception e) {

                return "Version Unknown!";

            }

        }

}