/*

 * 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.

 *

 */

/* @test

   @bug 4152178

   @summary Check various temp-file prefix/suffix cases */

import java.io.File;

import java.io.IOException;

public class Patterns {

    static File dir = new File(".");

    static void ckn(String prefix, String suffix) throws Exception {

        try {

            File f = File.createTempFile(prefix, suffix, dir);

            f.deleteOnExit();

        } catch (Exception x) {

            if ((x instanceof IOException)

                || (x instanceof NullPointerException)

                || (x instanceof IllegalArgumentException)) {

                System.err.println("\"" + prefix + "\", \"" + suffix

                                   + "\" failed as expected: " + x.getMessage());

                return;

            }

            throw x;

        }

        throw new Exception("\"" + prefix + "\", \"" + suffix

                            + "\" should have failed");

    }

    static void cky(String prefix, String suffix) throws Exception {

        File f = File.createTempFile(prefix, suffix, dir);

        f.deleteOnExit();

        System.err.println("\"" + prefix + "\", \"" + suffix

                           + "\" --> " + f.getPath());

    }

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

        ckn(null, null);

        ckn("", null);

        ckn("x", null);

        ckn("xx", null);

        cky("xxx", null);

        cky("xxx", "");

        cky("xxx", "y");

        cky("xxx", ".y");

    }

}