J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2001 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 4401798 |
| 26 | @summary Check that single-character reads work properly |
| 27 | */ |
| 28 | |
| 29 | |
| 30 | import java.io.*; |
| 31 | |
| 32 | |
| 33 | public class One { |
| 34 | |
| 35 | private static abstract class Test { |
| 36 | |
| 37 | InputStreamReader isr; |
| 38 | StringBuffer sb; |
| 39 | String expect; |
| 40 | |
| 41 | Test(byte[] in, String expect) throws Exception { |
| 42 | isr = new InputStreamReader(new ByteArrayInputStream(in), "UTF-8"); |
| 43 | sb = new StringBuffer(expect.length()); |
| 44 | this.expect = expect; |
| 45 | go(); |
| 46 | } |
| 47 | |
| 48 | void go() throws Exception { |
| 49 | read(); |
| 50 | if (!expect.equals(sb.toString())) |
| 51 | throw new Exception("Expected " + expect |
| 52 | + ", got " + sb.toString()); |
| 53 | } |
| 54 | |
| 55 | abstract void read() throws IOException; |
| 56 | |
| 57 | } |
| 58 | |
| 59 | |
| 60 | private static void test(String expect) throws Exception { |
| 61 | byte[] in = expect.getBytes("UTF-8"); |
| 62 | |
| 63 | new Test(in, expect) { |
| 64 | public void read() throws IOException { |
| 65 | for (;;) { |
| 66 | int c; |
| 67 | if ((c = isr.read()) == -1) |
| 68 | break; |
| 69 | sb.append((char)c); |
| 70 | } |
| 71 | }}; |
| 72 | |
| 73 | new Test(in, expect) { |
| 74 | public void read() throws IOException { |
| 75 | for (;;) { |
| 76 | char[] cb = new char[1]; |
| 77 | if (isr.read(cb) == -1) |
| 78 | break; |
| 79 | sb.append(cb[0]); |
| 80 | } |
| 81 | }}; |
| 82 | |
| 83 | new Test(in, expect) { |
| 84 | public void read() throws IOException { |
| 85 | for (;;) { |
| 86 | char[] cb = new char[2]; |
| 87 | int n; |
| 88 | if ((n = isr.read(cb)) == -1) |
| 89 | break; |
| 90 | sb.append(cb[0]); |
| 91 | if (n == 2) |
| 92 | sb.append(cb[1]); |
| 93 | } |
| 94 | }}; |
| 95 | |
| 96 | } |
| 97 | |
| 98 | public static void main(String[] args) throws Exception { |
| 99 | test("x"); |
| 100 | test("xy"); |
| 101 | test("xyz"); |
| 102 | test("\ud800\udc00"); |
| 103 | test("x\ud800\udc00"); |
| 104 | } |
| 105 | |
| 106 | } |