J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1998 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 | /* @test |
| 25 | @bug 4092350 |
| 26 | @summary Verify that reads and writes of primitives are correct |
| 27 | */ |
| 28 | |
| 29 | // The bug mentioned is actually a performance bug that prompted |
| 30 | // changes in the methods to write primitives |
| 31 | import java.io.*; |
| 32 | |
| 33 | import java.io.*; |
| 34 | |
| 35 | public class ReadWritePrimitives { |
| 36 | |
| 37 | public static void main(String args[]) throws IOException { |
| 38 | long start, finish; |
| 39 | start = System.currentTimeMillis(); |
| 40 | testShort(); |
| 41 | finish = System.currentTimeMillis(); |
| 42 | // System.err.println("Time taken="+(finish-start)); |
| 43 | start = System.currentTimeMillis(); |
| 44 | testChar(); |
| 45 | finish = System.currentTimeMillis(); |
| 46 | // System.err.println("Time taken="+(finish-start)); |
| 47 | start = System.currentTimeMillis(); |
| 48 | testInt(); |
| 49 | finish = System.currentTimeMillis(); |
| 50 | // System.err.println("Time taken="+(finish-start)); |
| 51 | start = System.currentTimeMillis(); |
| 52 | testLong(); |
| 53 | finish = System.currentTimeMillis(); |
| 54 | // System.err.println("Time taken="+(finish-start)); |
| 55 | } |
| 56 | |
| 57 | private static void testShort() throws IOException { |
| 58 | File fh = new File(System.getProperty("test.dir", "."), |
| 59 | "x.ReadWriteGenerated"); |
| 60 | RandomAccessFile f = new RandomAccessFile(fh,"rw"); |
| 61 | for(int i = 0; i < 10000; i++){ |
| 62 | f.writeShort((short)i); |
| 63 | } |
| 64 | f.writeShort((short)65535); |
| 65 | f.close(); |
| 66 | f = new RandomAccessFile(fh,"r"); |
| 67 | for(int i = 0; i < 10000; i++) { |
| 68 | short r = f.readShort(); |
| 69 | if (r != ((short)i)) { |
| 70 | System.err.println("An error occurred. Read:" + r |
| 71 | + " i:" + ((short)i)); |
| 72 | throw new IOException("Bad read from a writeShort"); |
| 73 | } |
| 74 | } |
| 75 | short rmax = f.readShort(); |
| 76 | if (rmax != ((short)65535)) { |
| 77 | System.err.println("An error occurred. Read:" + rmax); |
| 78 | throw new IOException("Bad read from a writeShort"); |
| 79 | } |
| 80 | f.close(); |
| 81 | } |
| 82 | |
| 83 | private static void testChar() throws IOException { |
| 84 | File fh = new File(System.getProperty("test.dir", "."), |
| 85 | "x.ReadWriteGenerated"); |
| 86 | RandomAccessFile f = new RandomAccessFile(fh,"rw"); |
| 87 | for(int i = 0; i < 10000; i++){ |
| 88 | f.writeChar((char)i); |
| 89 | } |
| 90 | f.close(); |
| 91 | f = new RandomAccessFile(fh,"r"); |
| 92 | for(int i = 0; i < 10000; i++) { |
| 93 | char r = f.readChar(); |
| 94 | if (r != ((char)i)){ |
| 95 | System.err.println("An error occurred. Read:" + r |
| 96 | + " i:" + ((char) i)); |
| 97 | throw new IOException("Bad read from a writeChar"); |
| 98 | } |
| 99 | } |
| 100 | f.close(); |
| 101 | } |
| 102 | |
| 103 | |
| 104 | private static void testInt() throws IOException { |
| 105 | File fh = new File(System.getProperty("test.dir", "."), |
| 106 | "x.ReadWriteGenerated"); |
| 107 | RandomAccessFile f = new RandomAccessFile(fh,"rw"); |
| 108 | for(int i = 0; i < 10000; i++){ |
| 109 | f.writeInt((short)i); |
| 110 | } |
| 111 | f.writeInt(Integer.MAX_VALUE); |
| 112 | f.close(); |
| 113 | f = new RandomAccessFile(fh, "r"); |
| 114 | for(int i = 0; i < 10000; i++) { |
| 115 | int r = f.readInt(); |
| 116 | if (r != i){ |
| 117 | System.err.println("An error occurred. Read:" + r |
| 118 | + " i:" + i); |
| 119 | throw new IOException("Bad read from a writeInt"); |
| 120 | } |
| 121 | } |
| 122 | int rmax = f.readInt(); |
| 123 | if (rmax != Integer.MAX_VALUE){ |
| 124 | System.err.println("An error occurred. Read:" + rmax); |
| 125 | throw new IOException("Bad read from a writeInt"); |
| 126 | } |
| 127 | f.close(); |
| 128 | } |
| 129 | |
| 130 | private static void testLong() throws IOException { |
| 131 | File fh = new File(System.getProperty("test.dir", "."), |
| 132 | "x.ReadWriteGenerated"); |
| 133 | RandomAccessFile f = new RandomAccessFile(fh,"rw"); |
| 134 | for(int i = 0; i < 10000; i++){ |
| 135 | f.writeLong(123456789L * (long)i); |
| 136 | } |
| 137 | f.close(); |
| 138 | f = new RandomAccessFile(fh,"r"); |
| 139 | for(int i = 0; i < 10000; i++){ |
| 140 | long r = f.readLong(); |
| 141 | if (r != (((long) i) * 123456789L) ) { |
| 142 | System.err.println("An error occurred. Read:" + r |
| 143 | + " i" + ((long) i)); |
| 144 | |
| 145 | throw new IOException("Bad read from a writeInt"); |
| 146 | } |
| 147 | } |
| 148 | f.close(); |
| 149 | |
| 150 | } |
| 151 | |
| 152 | } |