/*

 * Copyright (c) 2010, 2016, 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 6893932 6990390

 * @summary javah help screen lists -h and -? but does not accept them

 * @modules jdk.compiler/com.sun.tools.javah

 */

import java.io.*;

import java.util.*;

public class TestHelpOpts {

    public static void main(String... args) throws Exception {

        new TestHelpOpts().run();

    }

    void run() throws Exception {

        Locale prev = Locale.getDefault();

        try {

            Locale.setDefault(Locale.ENGLISH);

            String[] opts = { "-h", "-help", "-?", "--help" };

            for (String opt: opts)

                test(opt);

        } finally {

            Locale.setDefault(prev);

        }

        if (errors > 0)

            throw new Exception(errors + " errors occurred");

    }

    void test(String opt) {

        System.err.println("test " + opt);

        String[] args = { opt };

        StringWriter sw = new StringWriter();

        PrintWriter pw = new PrintWriter(sw);

        int rc = com.sun.tools.javah.Main.run(args, pw);

        pw.close();

        String out = sw.toString();

        if (!out.isEmpty())

            System.err.println(out);

        if (rc != 0)

            error("Unexpected exit: rc=" + rc);

        String flat = out.replaceAll("\\s+", " "); // canonicalize whitespace

        if (!flat.contains("Usage: javah [options] <classes> where [options] include:"))

            error("expected text not found");

        if (flat.contains("main.opt"))

            error("key not found in resource bundle: " + flat.replaceAll(".*(main.opt.[^ ]*).*", "$1"));

    }

    void error(String msg) {

        System.err.println(msg);

        errors++;

    }

    int errors;

}