77 lines
2.5 KiB
Java
77 lines
2.5 KiB
Java
/*
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* Copyright (c) 2001, 2010, 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 4526350
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@summary Verify IOUtil.java reads to buffer limits
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*/
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import java.io.*;
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import java.nio.*;
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import java.nio.channels.*;
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public class ReadToLimit {
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public static void main(String[] args) throws Exception {
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File blah = File.createTempFile("blah", null);
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blah.deleteOnExit();
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initTestFile(blah);
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ByteBuffer[] dstBuffers = new ByteBuffer[2];
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for(int i=0; i<2; i++) {
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dstBuffers[i] = ByteBuffer.allocateDirect(10);
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dstBuffers[i].limit(5);
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}
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FileInputStream fis = new FileInputStream(blah);
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FileChannel fc = fis.getChannel();
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long bytesRead = fc.read(dstBuffers);
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for(int i=0; i<2; i++)
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if (dstBuffers[i].position() != 5)
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throw new Exception("Test failed");
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fc.close();
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fis.close();
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blah.delete();
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}
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/**
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* Creates file blah:
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* 0000
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* 0001
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* 0002
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* 0003
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*/
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private static void initTestFile(File blah) throws Exception {
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FileOutputStream fos = new FileOutputStream(blah);
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BufferedWriter awriter
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= new BufferedWriter(new OutputStreamWriter(fos, "8859_1"));
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for(int i=0; i<4; i++) {
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String number = new Integer(i).toString();
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for (int h=0; h<4-number.length(); h++)
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awriter.write("0");
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awriter.write(""+i);
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awriter.newLine();
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}
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awriter.flush();
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awriter.close();
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}
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}
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