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/*
* Copyright (c) 2005, 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 6336960
* @summary Validate that GZIPInputStream.readUByte throws the correct
* exception when read() on the InputStream with which the GZIPInputStream was
* created returns an out-of-bounds value.
*/
import java.io.*;
import java.util.zip.GZIPInputStream;
public class ReadUByte {
/** Guaranteed to return a value that is out-of-spec for read(). */
static class BrokenInputStream extends ByteArrayInputStream {
BrokenInputStream() {
super(new byte[16]);
}
public int read() {
return -33;
}
}
public static void realMain(String[] args) throws Throwable {
try {
new GZIPInputStream(new BrokenInputStream());
fail("Failed to throw expected IOException");
} catch (IOException ex) {
String msg = ex.getMessage();
if (msg.indexOf("ReadUByte$BrokenInputStream.read() returned value out of range") < 0) {
fail("IOException contains incorrect message: '" + msg + "'");
}
}
}
//--------------------- Infrastructure ---------------------------
static volatile int passed = 0, failed = 0;
static void pass() {passed++;}
static void fail() {failed++; Thread.dumpStack();}
static void fail(String msg) {System.out.println(msg); fail();}
static void unexpected(Throwable t) {failed++; t.printStackTrace();}
static void check(boolean cond) {if (cond) pass(); else fail();}
static void equal(Object x, Object y) {
if (x == null ? y == null : x.equals(y)) pass();
else fail(x + " not equal to " + y);}
public static void main(String[] args) throws Throwable {
try {realMain(args);} catch (Throwable t) {unexpected(t);}
System.out.println("\nPassed = " + passed + " failed = " + failed);
if (failed > 0) throw new AssertionError("Some tests failed");}
}
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