91 lines
3.0 KiB
Java
91 lines
3.0 KiB
Java
/*
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* Copyright (c) 1998, 2011, 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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/* @test
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@bug 4028605 4109069 4234207 4401122
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@summary Make sure ZipInputStream/InflaterInputStream.available() will
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return 0 after EOF has reached and 1 otherwise.
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*/
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import java.io.*;
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import java.util.zip.*;
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public class Available {
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public static void main(String[] args) throws Exception {
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// 4028605 4109069 4234207
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test1();
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// test 4401122
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test2();
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}
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private static void test1() throws Exception {
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File f = new File(System.getProperty("test.src", "."), "input.jar");
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// test ZipInputStream
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try (FileInputStream fis = new FileInputStream(f);
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ZipInputStream z = new ZipInputStream(fis))
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{
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z.getNextEntry();
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tryAvail(z);
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}
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// test InflaterInputStream
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try (ZipFile zfile = new ZipFile(f)) {
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tryAvail(zfile.getInputStream(zfile.getEntry("Available.java")));
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}
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}
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static void tryAvail(InputStream in) throws Exception {
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byte[] buf = new byte[1024];
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int n;
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while ((n = in.read(buf)) != -1);
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if (in.available() != 0) {
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throw new Exception("available should return 0 after EOF");
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}
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}
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// To reproduce 4401122
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private static void test2() throws Exception {
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File f = new File(System.getProperty("test.src", "."), "input.jar");
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try (ZipFile zf = new ZipFile(f)) {
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InputStream in = zf.getInputStream(zf.getEntry("Available.java"));
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int initialAvailable = in.available();
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in.read();
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if (in.available() != initialAvailable - 1)
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throw new RuntimeException("Available not decremented.");
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for(int j=0; j<initialAvailable-1; j++)
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in.read();
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if (in.available() != 0)
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throw new RuntimeException();
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in.close();
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if (in.available() != 0)
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throw new RuntimeException();
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}
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}
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}
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