| /* |
| * 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 4017414 |
| @summary Check for correct implementation of PushbackInputStream.available |
| */ |
| |
| import java.io.*; |
| |
| |
| |
| public class Available{ |
| |
| private static void dotest(PushbackInputStream in , int expected) |
| throws Exception |
| { |
| |
| int got = in.available(); |
| System.err.println("available must be " + expected + " , got : " + got); |
| if (got != expected) { |
| throw new |
| RuntimeException("Unexpected number of bytes available in the PushBackInputStream"); |
| } |
| |
| } |
| |
| |
| |
| public static void main(String args[]) throws Exception{ |
| |
| PushbackInputStream in = new |
| PushbackInputStream(new ByteArrayInputStream(new byte[10]),5); |
| |
| dotest(in , 10); |
| |
| in.read(); |
| dotest(in , 9); |
| |
| in.unread(20); |
| dotest(in , 10); |
| |
| in.unread(20); |
| dotest(in , 11); |
| |
| } |
| |
| } |