test/jdk/java/io/CharArrayReader/Constructor.java
changeset 47216 71c04702a3d5
parent 5506 202f599c92aa
equal deleted inserted replaced
47215:4ebc2e2fb97c 47216:71c04702a3d5
       
     1 /*
       
     2  * Copyright (c) 1998, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
       
    20  * or visit www.oracle.com if you need additional information or have any
       
    21  * questions.
       
    22  */
       
    23 
       
    24 /* @test
       
    25    @bug 4140445 4140451
       
    26    @summary Test if constructor will check for illegal
       
    27             arguments.
       
    28 */
       
    29 
       
    30 
       
    31 
       
    32 import java.io.*;
       
    33 
       
    34 public class Constructor {
       
    35     public static void main(String argv[]) throws Exception {
       
    36         int values[] = {Integer.MIN_VALUE, -1, 0, 1, 4, 16, 31,
       
    37                         32, 33, Integer.MAX_VALUE};
       
    38         char b[][] = {null, new char[32]};
       
    39 
       
    40         int i = 0, j = 0, k = 0;
       
    41         boolean nullPtr = false, indexOutBnd = false;
       
    42 
       
    43         for (i = 0; i < b.length; i++) {
       
    44             for ( j = 0; j < values.length; j++) {
       
    45                 for ( k = 0; k < values.length; k++) {
       
    46 
       
    47                     nullPtr = (b[i] == null);
       
    48 
       
    49                     int bufLen = nullPtr ? 0 : b[i].length;
       
    50                     indexOutBnd = (values[j] < 0)
       
    51                         || (values[j] > bufLen)
       
    52                         || (values[k] < 0)
       
    53                         || ((values[j] + values[k]) < 0);
       
    54 
       
    55                     try {
       
    56                         CharArrayReader rdr = new CharArrayReader
       
    57                             (b[i], values[j], values[k]);
       
    58                     } catch (NullPointerException e) {
       
    59                         if (!nullPtr) {
       
    60                             throw new Exception
       
    61                                 ("should not throw NullPointerException");
       
    62                         }
       
    63                         continue;
       
    64                     } catch (IllegalArgumentException e) {
       
    65                         if (!indexOutBnd) {
       
    66                             throw new Exception
       
    67                                 ("should not throw IllegalArgumentException");
       
    68                         }
       
    69                         continue;
       
    70                     }
       
    71 
       
    72                     if (nullPtr || indexOutBnd) {
       
    73                         throw new Exception("Failed to detect illegal argument");
       
    74                     }
       
    75                 }
       
    76             }
       
    77         }
       
    78     }
       
    79 }