105 lines
3.1 KiB
Java
105 lines
3.1 KiB
Java
/*
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* Copyright (c) 1998, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4054043
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* @summary Test bufferedinputstream when stream is interrupted
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*
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*/
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import java.io.*;
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/**
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* This class tests to see if bufferinputstream updates count
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* when the stream is interrupted and restarted
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* It was adapted from a test class provided in the bug report
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*
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*/
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public class CountUpdate {
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public static void main(String[] args) throws Exception {
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BufferBreaker breaker = new BufferBreaker();
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BufferedInputStream in = new BufferedInputStream(breaker, 1000);
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byte b[] = new byte[100];
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int total = 0;
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for (int i=0; i<5; i++) {
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if (i>0) breaker.breakIt = true;
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try {
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int n = in.read(b);
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total += n;
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//System.out.print("read "+n+" bytes: [");
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//System.out.write(b, 0, n);
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//System.out.println("]");
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}
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catch (IOException e) {
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//System.out.println(e);
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}
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}
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if (total>7)
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throw new RuntimeException(
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"BufferedInputStream did not reset count.");
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}
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}
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class BufferBreaker extends InputStream {
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public boolean breakIt = false;
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public int read() {
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return 'x';
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}
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public static final byte[] buffer = {(byte)'a',
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(byte)'b',
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(byte)'c',
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(byte)'d',
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(byte)'e',
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(byte)'f',
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(byte)'g'};
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public int read(byte b[]) throws IOException {
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return read(b, 0, b.length);
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}
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public int read(byte b[], int off, int len) throws IOException {
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if (breakIt) throw new IOException("BREAK");
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if (len > buffer.length) len = buffer.length;
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System.arraycopy(buffer, 0, b, off, len);
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return len;
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}
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public long skip(long n) {
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return 0;
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}
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public int available() {
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return 0;
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}
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}
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