1/* 2 * Copyright (c) 1997, 2000, 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 @summary General tests of String constructors and methods that convert 26 between character encodings. This should really be in 27 java/lang/String, but it shares code with the I/O charStream 28 tests. 29 */ 30 31import java.io.*; 32 33 34public class StringConvert { 35 36 static String enc = "UTF8"; 37 static int limit = 500; 38 static int max = 0xffff; 39 40 static void fail(String s) { 41 throw new RuntimeException(s); 42 } 43 44 public static void main(String[] args) throws Exception { 45 PrintStream log = System.err; 46 IntGenerator ig = new IntGenerator(); 47 CharGenerator cg; 48 StringGenerator sg; 49 String s; 50 int i = 0; 51 52 /* String(byte[] bytes, String enc) 53 getBytes(String enc) 54 */ 55 log.println("-- String(byte[], String), getBytes(String)"); 56 i = 0; 57 cg = new CharGenerator(ig, 0, max); 58 sg = new StringGenerator(ig, cg, limit); 59 while ((s = sg.next()) != null) { 60 byte[] b = s.getBytes(enc); 61 String t = new String(b, enc); 62 if (!s.equals(t)) { 63 int n = Math.min(s.length(), t.length()); 64 for (int j = 0; j < n; j++) { 65 if (s.charAt(j) != t.charAt(j)) { 66 log.println("Mismatch: " + j + " " 67 + Integer.toHexString(s.charAt(j)) 68 + " != " 69 + Integer.toHexString(t.charAt(j))); 70 } 71 } 72 fail("Conversion failure"); 73 } 74 log.println("[" + i + "] " + s.length()); 75 i++; 76 } 77 78 /* String(byte[] bytes) 79 getBytes() 80 */ 81 log.println("-- String(byte[]), getBytes()"); 82 i = 0; 83 cg = new CharGenerator(ig, 0x20, 0x7e); 84 sg = new StringGenerator(ig, cg, limit); 85 while ((s = sg.next()) != null) { 86 log.println("[" + i + "] \"" + s + "\""); 87 byte[] b = s.getBytes(); 88 String t = new String(b); 89 if (! s.equals(t)) 90 fail("Conversion failure"); 91 i++; 92 } 93 94 /* String(byte[] bytes, int offset, int length) 95 getBytes() 96 */ 97 log.println("-- String(byte[], int, int), getBytes()"); 98 i = 0; 99 cg = new CharGenerator(ig, 0x20, 0x7e); 100 sg = new StringGenerator(ig, cg, limit); 101 while ((s = sg.next()) != null) { 102 log.println("[" + i + "] \"" + s + "\""); 103 byte[] b = s.getBytes(); 104 int o = ig.next(s.length() - 1); 105 int n = ig.next(s.length() - o); 106 String t = new String(b, o, n); 107 if (! s.substring(o, o + n).equals(t)) 108 fail("Conversion failure"); 109 i++; 110 } 111 112 /* String(byte[] bytes, int offset, int length, String enc) 113 getBytes(String enc) 114 */ 115 log.println("-- String(byte[], int, int, String), getBytes(String)"); 116 i = 0; 117 cg = new CharGenerator(ig); 118 sg = new StringGenerator(ig, cg, limit); 119 while ((s = sg.next()) != null) { 120 log.println("[" + i + "] " + s.length()); 121 byte[] b = s.getBytes(enc); 122 int o = ig.next(100); 123 byte[] b2 = new byte[b.length + o]; 124 System.arraycopy(b, 0, b2, o, b.length); 125 String t = new String(b2, o, b.length, enc); 126 if (! s.equals(t)) 127 fail("Conversion failure"); 128 i++; 129 } 130 131 /* Substrings */ 132 log.println("-- Substrings"); 133 i = 0; 134 cg = new CharGenerator(ig, 0x20, 0x7e); 135 sg = new StringGenerator(ig, cg, limit); 136 while ((s = sg.next()) != null) { 137 log.println("[" + i + "] \"" + s + "\""); 138 int o = ig.next(s.length() - 1); 139 int n = ig.next(s.length() - o); 140 String s2 = s.substring(o, o + n); 141 byte[] b = s2.getBytes(); 142 String t = new String(b); 143 if (! s2.equals(t)) 144 fail("Conversion failure"); 145 i++; 146 } 147 148 } 149 150} 151