J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1998-2005 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 4143651 5085148 |
| 27 | * |
| 28 | * @summary Test if Writer methods will check if the stream |
| 29 | * has been closed. |
| 30 | */ |
| 31 | |
| 32 | import java.io.*; |
| 33 | |
| 34 | public class WriteAfterClose { |
| 35 | |
| 36 | static boolean failed = false; |
| 37 | |
| 38 | static void testWrite(Writer wtr) throws Exception { |
| 39 | |
| 40 | // These tests could be tighted to only check for a particular |
| 41 | // kind of exception, but in 1.2beta4 StringWriter and |
| 42 | // other writers throw RuntimeExceptions |
| 43 | char[] cbuf = new char[2]; |
| 44 | wtr.close(); |
| 45 | System.out.println("Class " + wtr.getClass().getName()); |
| 46 | |
| 47 | try { |
| 48 | wtr.write('a'); |
| 49 | System.out.println("FAILED: Allows char write on a closed stream"); |
| 50 | failed = true; |
| 51 | } catch (Exception e) { |
| 52 | } |
| 53 | |
| 54 | try { |
| 55 | wtr.write(cbuf, 0, 1); |
| 56 | System.out.println("FAILED: Allows buffer write on a closed stream"); |
| 57 | failed = true; |
| 58 | } catch (Exception e) { |
| 59 | } |
| 60 | |
| 61 | try { |
| 62 | wtr.write(cbuf, 0, 0); |
| 63 | System.out.println("FAILED: Allows empty write on a closed stream"); |
| 64 | failed = true; |
| 65 | } catch (Exception e) { |
| 66 | } |
| 67 | |
| 68 | try { |
| 69 | wtr.write("a"); |
| 70 | System.out.println("FAILED: Allows string write on a closed stream"); |
| 71 | failed = true; |
| 72 | } catch (Exception e) { |
| 73 | } |
| 74 | |
| 75 | try { |
| 76 | wtr.write("a", 0, 1); |
| 77 | System.out.println("FALIED: Allows string buf write on a closed stream"); |
| 78 | failed = true; |
| 79 | } catch (Exception e) { |
| 80 | } |
| 81 | |
| 82 | try { |
| 83 | wtr.flush(); |
| 84 | System.out.println("FAILED: Allows flushing writer on a closed stream"); |
| 85 | failed = true; |
| 86 | } catch (Exception e) { |
| 87 | } |
| 88 | |
| 89 | wtr.close(); |
| 90 | } |
| 91 | |
| 92 | public static void main(String argv[]) throws Exception { |
| 93 | StringWriter sw = new StringWriter(); |
| 94 | testWrite(new BufferedWriter(sw)); |
| 95 | |
| 96 | ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
| 97 | OutputStreamWriter osw = new OutputStreamWriter(bos); |
| 98 | testWrite(osw); |
| 99 | |
| 100 | File f = new File(System.getProperty("test.dir", "."), |
| 101 | "NewFile"); |
| 102 | f.createNewFile(); |
| 103 | f.deleteOnExit(); |
| 104 | FileWriter fr = new FileWriter(f); |
| 105 | testWrite(fr); |
| 106 | |
| 107 | if (failed) { |
| 108 | throw new Exception("The test failed because one of the" |
| 109 | + " writer operation{s} failed. Check the messages"); |
| 110 | } |
| 111 | } |
| 112 | } |