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test/jdk/java/io/InputStream/ReadParams.java

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rev 48210 : 4358774: Add null InputStream and OutputStream
Reviewed-by: reinhapa
rev 47216 : 8187443: Forest Consolidation: Move files to unified layout
Reviewed-by: darcy, ihse
   1 /*
   2  * Copyright (c) 1998, 2010, 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 4008296 4008293 4190090 4193729
  27  * @summary Check for correct handling of parameters to
  28  *          XXXXInputStream.read(b, off, len).
  29  *
  30  */
  31 
  32 import java.io.*;
  33 import java.util.zip.ZipInputStream;
  34 import java.util.zip.InflaterInputStream;
  35 import java.util.zip.DeflaterOutputStream;
  36 
  37 public class ReadParams {
  38 
  39     /* check for correct handling of different values of off and len */
  40     public static void doTest(InputStream in) throws Exception {
  41 
  42         int off[] = {-1, -1,  0, 0, 33, 33, 0, 32, 32, 4, 1, 0,  -1,
  43                      Integer.MAX_VALUE, 1, Integer.MIN_VALUE,
  44                      Integer.MIN_VALUE, 1};
  45         int len[] = {-1,  0, -1, 33, 0, 4, 32, 0, 4, 16, 31, 0,
  46                      Integer.MAX_VALUE, Integer.MAX_VALUE, Integer.MAX_VALUE,


 180         doTest(sis);
 181         doTest1(sis);
 182         sis.close();
 183 
 184         ZipInputStream zis = new ZipInputStream(new FileInputStream(fn));
 185         doTest(zis);
 186         doTest1(zis);
 187         zis.close();
 188 
 189         byte[] data = new byte[256];
 190         ByteArrayOutputStream bos = new ByteArrayOutputStream();
 191         DeflaterOutputStream dos = new DeflaterOutputStream(bos);
 192         dos.write(data, 0, data.length);
 193         dos.close();
 194         InflaterInputStream ifs = new InflaterInputStream
 195             (new ByteArrayInputStream(bos.toByteArray()));
 196         doTest(ifs);
 197         doTest1(ifs);
 198         ifs.close();
 199 





 200         /* cleanup */
 201         fn.delete();
 202     }
 203 }
 204 
 205 /* An InputStream class used in the above tests */
 206 class MyInputStream extends InputStream {
 207 
 208     private int readctr = 0;
 209     private long endoffile;
 210 
 211     public MyInputStream(long endoffile) {
 212         this.endoffile = endoffile;
 213     }
 214 
 215     public int read() {
 216         if (readctr == endoffile) {
 217             return -1;
 218         }
 219         else {
   1 /*
   2  * Copyright (c) 1998, 2017, 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 4008296 4008293 4190090 4193729 4358774
  27  * @summary Check for correct handling of parameters to
  28  *          XXXXInputStream.read(b, off, len).
  29  *
  30  */
  31 
  32 import java.io.*;
  33 import java.util.zip.ZipInputStream;
  34 import java.util.zip.InflaterInputStream;
  35 import java.util.zip.DeflaterOutputStream;
  36 
  37 public class ReadParams {
  38 
  39     /* check for correct handling of different values of off and len */
  40     public static void doTest(InputStream in) throws Exception {
  41 
  42         int off[] = {-1, -1,  0, 0, 33, 33, 0, 32, 32, 4, 1, 0,  -1,
  43                      Integer.MAX_VALUE, 1, Integer.MIN_VALUE,
  44                      Integer.MIN_VALUE, 1};
  45         int len[] = {-1,  0, -1, 33, 0, 4, 32, 0, 4, 16, 31, 0,
  46                      Integer.MAX_VALUE, Integer.MAX_VALUE, Integer.MAX_VALUE,


 180         doTest(sis);
 181         doTest1(sis);
 182         sis.close();
 183 
 184         ZipInputStream zis = new ZipInputStream(new FileInputStream(fn));
 185         doTest(zis);
 186         doTest1(zis);
 187         zis.close();
 188 
 189         byte[] data = new byte[256];
 190         ByteArrayOutputStream bos = new ByteArrayOutputStream();
 191         DeflaterOutputStream dos = new DeflaterOutputStream(bos);
 192         dos.write(data, 0, data.length);
 193         dos.close();
 194         InflaterInputStream ifs = new InflaterInputStream
 195             (new ByteArrayInputStream(bos.toByteArray()));
 196         doTest(ifs);
 197         doTest1(ifs);
 198         ifs.close();
 199 
 200         InputStream nis = InputStream.nullStream();
 201         doTest(nis);
 202         doTest1(nis);
 203         nis.close();
 204 
 205         /* cleanup */
 206         fn.delete();
 207     }
 208 }
 209 
 210 /* An InputStream class used in the above tests */
 211 class MyInputStream extends InputStream {
 212 
 213     private int readctr = 0;
 214     private long endoffile;
 215 
 216     public MyInputStream(long endoffile) {
 217         this.endoffile = endoffile;
 218     }
 219 
 220     public int read() {
 221         if (readctr == endoffile) {
 222             return -1;
 223         }
 224         else {
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