| /* |
| * Copyright (c) 1997, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* @test |
| @bug 1238944 |
| @summary Check for correct implementation of LineNumberInputStream.available |
| */ |
| |
| import java.io.*; |
| |
| |
| public class Available { |
| |
| static void check(int a, int bound) throws Exception { |
| if (a > bound) { |
| throw new Exception("Available returned " + a + " > " + bound); |
| } |
| } |
| |
| public static void main(String args[]) throws Exception { |
| LineNumberInputStream in = new LineNumberInputStream(new MyInStream()); |
| check(in.available(), 5); |
| in.read(); |
| in.read(); |
| check(in.available(), 4); |
| in.read(); |
| in.read(); |
| in.read(); |
| check(in.available(), 2); |
| } |
| |
| } |
| |
| |
| class MyInStream extends InputStream { |
| |
| char[] buf = {'a', 'b', 'c', 'd', '\n', |
| 'e', 'f', '\r', '\n', 'g'}; |
| int ctr = 0; |
| |
| public int read() { |
| return ((ctr == 12) ? -1 : (int)buf[ctr++]); |
| } |
| |
| public int available() { |
| return (10 - ctr); |
| } |
| |
| } |