1 /*

     2  * Copyright 2005 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 

    24 /**

    25  *  @test

    26  *  @bug 5085148

    27  *  @summary Test if PrintWriter methods check if the stream

    28  *           has been closed.

    29  */

    30 

    31 import java.io.*;

    32 

    33 public enum OpsAfterClose {

    34 

    35         WRITE_BUF { boolean check(PrintWriter w) {

    36                     char buf[] = new char[2];

    37                     w.write(buf);

    38                     return w.checkError();

    39             } },

    40 

    41         WRITE_BUF_OFF { boolean check(PrintWriter w) {

    42                     char buf[] = new char[2];

    43                     int len = 1;

    44                     w.write(buf, 0, len);

    45                     return w.checkError();

    46              } },

    47         WRITE_INT { boolean check(PrintWriter w) {

    48                     w.write(1);

    49                     return w.checkError();

    50              } },

    51         WRITE_STR { boolean check(PrintWriter w) {

    52                     String s = "abc";

    53                     w.write(s);

    54                     return w.checkError();

    55              } },

    56         WRITE_STR_OFF { boolean check(PrintWriter w) {

    57                     String s = "abc";

    58                     w.write(s, 0, s.length());

    59                     return w.checkError();

    60              } };

    61 

    62     abstract boolean check(PrintWriter w);

    63 

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

    65 

    66         System.out.println("Testing PrintWriter");

    67         boolean failed = false;

    68         boolean result = false;

    69         File f = new File(System.getProperty("test.dir", "."),

    70                           "print-writer.out");

    71         f.deleteOnExit();

    72 

    73         for (OpsAfterClose op : OpsAfterClose.values()) {

    74             PrintWriter pw = new PrintWriter(

    75                                 new FileWriter(f));

    76             pw.close();

    77             result = op.check(pw);

    78             if (!result) {

    79                 failed = true;

    80             }

    81            System.out.println(op + ":" + result);

    82         }

    83         if (failed) {

    84             throw new Exception(

    85                 "Test failed for the failed operation{s} " +

    86                 "above for the PrintWriter");

    87         }

    88     }

    89 }