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test/jdk/java/io/ByteArrayOutputStream/Write.java

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   1 /*
   2  * Copyright (c) 1997, 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 4017158
  26    @summary Check for correct implementation of ByteArrayInputStream.write





  27    */
  28 
  29 import java.io.*;





  30 
  31 
  32 public class WriteBounds{
  33 
  34     private static void dotest(byte[] b, int off, int len,
  35                                ByteArrayOutputStream baos)
  36         throws Exception
  37     {
  38 
  39         if (b != null) {
  40             System.err.println("ByteArrayOutStream.write -- b.length = " +
  41                                b.length + " off = " + off + " len = " + len);
  42         }
  43         else{
  44             System.err.println("ByteArrayOutStream.write - b is null off = " +
  45                                off + " len = " + len);
  46         }
  47 
  48         try {
  49             baos.write(b, off, len);
  50         } catch (IndexOutOfBoundsException e) {
  51             System.err.println("IndexOutOfBoundsException is thrown -- OKAY");
  52         } catch (NullPointerException e) {
  53             System.err.println("NullPointerException is thrown -- OKAY");
  54         } catch (Throwable e){
  55             throw new RuntimeException("Unexpected Exception is thrown");
  56         }
  57 





  58     }
  59 
  60     public static void main( String argv[] ) throws Exception {







  61 
  62         ByteArrayOutputStream y1;
  63         byte array1[]={1 , 2 , 3 , 4 , 5};     // Simple array

  64 
  65         //Create new ByteArrayOutputStream object
  66         y1 = new ByteArrayOutputStream(5);
  67 
  68         dotest(array1, 0, Integer.MAX_VALUE , y1);
  69         dotest(array1, 0, array1.length+100, y1);
  70         dotest(array1, -1, 2, y1);
  71         dotest(array1, 0, -1, y1);
  72         dotest(null, 0, 2, y1);
  73 





  74     }
  75 

















































  76 }
   1 /*
   2  * Copyright (c) 1997, 2018, 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 /*
  25  * @test
  26  * @bug 4017158 8180410
  27  * @library /test/lib
  28  * @build jdk.test.lib.RandomFactory
  29  * @run testng Write
  30  * @summary Check for correct implementation of ByteArrayInputStream.write
  31  * @key randomness
  32  */
  33 
  34 import java.io.ByteArrayOutputStream;
  35 import java.util.Arrays;
  36 import java.util.Random;
  37 import jdk.test.lib.RandomFactory;
  38 import org.testng.annotations.Test;
  39 import static org.testng.Assert.*;
  40 
  41 public class Write {
  42     private static void doBoundsTest(byte[] b, int off, int len,


  43                                      ByteArrayOutputStream baos)
  44         throws Exception {


  45         if (b != null) {
  46             System.out.println("ByteArrayOutStream.write: b.length = " +
  47                                b.length + " off = " + off + " len = " + len);
  48         } else{
  49             System.out.println("ByteArrayOutStream.write: b is null off = " +

  50                                off + " len = " + len);
  51         }
  52 
  53         try {
  54             baos.write(b, off, len);
  55         } catch (IndexOutOfBoundsException e) {
  56             System.out.println("IndexOutOfBoundsException is thrown: OKAY");
  57         } catch (NullPointerException e) {
  58             System.out.println("NullPointerException is thrown: OKAY");
  59         } catch (Throwable e){
  60             throw new RuntimeException("Unexpected Exception is thrown", e);
  61         }
  62 
  63         if (b != null) {
  64             System.out.println("ByteArrayOutStream.writeBytes: b.length = " +
  65                                b.length);
  66         } else{
  67             System.out.println("ByteArrayOutStream.writeBytes: b is null");
  68         }
  69 
  70         try {
  71             baos.writeBytes(b);
  72         } catch (NullPointerException e) {
  73             System.out.println("NullPointerException is thrown: OKAY");
  74         } catch (Throwable e){
  75             throw new RuntimeException("Unexpected Exception is thrown", e);
  76         }
  77     }
  78 
  79     @Test
  80     public static void boundsTest() throws Exception {
  81         byte array1[] = {1 , 2 , 3 , 4 , 5};     // Simple array
  82 
  83         //Create new ByteArrayOutputStream object
  84         ByteArrayOutputStream y1 = new ByteArrayOutputStream(5);






  85 
  86         doBoundsTest(array1, 0, Integer.MAX_VALUE , y1);
  87         doBoundsTest(array1, 0, array1.length+100, y1);
  88         doBoundsTest(array1, -1, 2, y1);
  89         doBoundsTest(array1, 0, -1, y1);
  90         doBoundsTest(null, 0, 2, y1);
  91     }
  92 
  93     @Test
  94     public static void writeTest() throws Exception {
  95         ByteArrayOutputStream baos = new ByteArrayOutputStream();
  96         Random rnd = RandomFactory.getRandom();
  97         final int size = 17 + rnd.nextInt(128);
  98 
  99         byte[] b = new byte[size];
 100         rnd.nextBytes(b);
 101 
 102         int off1 = rnd.nextInt(size / 4) + 1;
 103         int len1 = Math.min(rnd.nextInt(size / 4) + 1, size - off1);
 104         int off2 = rnd.nextInt(size / 2) + 1;
 105         int len2 = Math.min(rnd.nextInt(size / 2) + 1, size - off2);
 106 
 107         System.out.format("size: %d, off1: %d, len1: %d, off2: %d, len2: %d%n",
 108             size, off1, len1, off2, len2);
 109 
 110         baos.write(b, off1, len1);
 111         byte[] b1 = baos.toByteArray();
 112         assertEquals(b1.length, len1, "Array length test 1 failed.");
 113         assertEquals(b1, Arrays.copyOfRange(b, off1, off1 + len1),
 114             "Array equality test 1 failed.");
 115 
 116         baos.write(b, off2, len2);
 117         byte[] b2 = baos.toByteArray();
 118         assertEquals(b2.length, len1 + len2, "Array length test 2 failed.");
 119         assertEquals(Arrays.copyOfRange(b2, 0, len1),
 120              Arrays.copyOfRange(b, off1, off1 + len1),
 121             "Array equality test 2A failed.");
 122         assertEquals(Arrays.copyOfRange(b2, len1, len1 + len2),
 123             Arrays.copyOfRange(b, off2, off2 + len2),
 124             "Array equality test 2B failed.");
 125 
 126         baos.writeBytes(b);
 127         byte[] b3 = baos.toByteArray();
 128         int len3 = len1 + len2 + b.length;
 129         if (b3.length != len1 + len2 + b.length) {
 130             throw new RuntimeException("Array length test 3 failed.");
 131         }
 132         assertEquals(b3.length, len3, "Array length test 3 failed.");
 133         assertEquals(Arrays.copyOfRange(b3, 0, len1),
 134              Arrays.copyOfRange(b, off1, off1 + len1),
 135             "Array equality test 3A failed.");
 136         assertEquals(Arrays.copyOfRange(b3, len1, len1 + len2),
 137             Arrays.copyOfRange(b, off2, off2 + len2),
 138             "Array equality test 3B failed.");
 139         assertEquals(Arrays.copyOfRange(b3, len1 + len2, len3), b,
 140             "Array equality test 3C failed.");
 141     }
 142 }
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