071bd521bc
Reviewed-by: alanb, bchristi, dcubed, dfuchs, eosterlund, erikj, glaubitz, ihse, iignatyev, jjiang, kbarrett, ksrini, kvn, naoto, prr, rriggs, serb, sspitsyn, stefank, tschatzl, valeriep, weijun, weijun
122 lines
3.9 KiB
Java
122 lines
3.9 KiB
Java
/*
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* Copyright (c) 2001, 2020, 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 4475533 4698138 4638365 4796221
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* @summary Test FileChannel write
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* @run main/othervm Write
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*/
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import java.nio.channels.*;
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import java.nio.*;
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import java.io.*;
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public class Write {
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public static void main(String[] args) throws Exception {
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test1(); // for bug 4475533
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test2();
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test3(); // for bug 4698138
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}
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// Test to see that offset > length does not throw exception
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static void test1() throws Exception {
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ByteBuffer[] dsts = new ByteBuffer[4];
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for (int i=0; i<4; i++)
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dsts[i] = ByteBuffer.allocateDirect(10);
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File testFile = File.createTempFile("test1", null);
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try {
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FileOutputStream fos = new FileOutputStream(testFile);
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FileChannel fc = fos.getChannel();
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fc.write(dsts, 2, 1);
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fos.close();
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} finally {
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testFile.delete();
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}
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}
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// Test to see that the appropriate buffers are updated
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static void test2() throws Exception {
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File testFile = File.createTempFile("test2", null);
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testFile.delete();
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ByteBuffer[] srcs = new ByteBuffer[4];
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for (int i=0; i<4; i++)
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srcs[i] = ByteBuffer.allocateDirect(10);
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srcs[0].put((byte)1); srcs[0].flip();
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srcs[1].put((byte)2); srcs[1].flip();
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srcs[2].put((byte)3); srcs[2].flip();
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srcs[3].put((byte)4); srcs[3].flip();
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FileOutputStream fos = new FileOutputStream(testFile);
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FileChannel fc = fos.getChannel();
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try {
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fc.write(srcs, 1, 2);
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} finally {
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fc.close();
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}
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FileInputStream fis = new FileInputStream(testFile);
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fc = fis.getChannel();
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try {
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ByteBuffer bb = ByteBuffer.allocateDirect(10);
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fc.read(bb);
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bb.flip();
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if (bb.get() != 2)
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throw new RuntimeException("Write failure");
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if (bb.get() != 3)
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throw new RuntimeException("Write failure");
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try {
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bb.get();
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throw new RuntimeException("Write failure");
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} catch (BufferUnderflowException bufe) {
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// correct result
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}
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} finally {
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fc.close();
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}
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// eagerly clean-up
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testFile.delete();
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}
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// Test write to a negative position (bug 4698138).
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static void test3() throws Exception {
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File testFile = File.createTempFile("test1", null);
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testFile.deleteOnExit();
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ByteBuffer dst = ByteBuffer.allocate(10);
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FileOutputStream fos = new FileOutputStream(testFile);
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FileChannel fc = fos.getChannel();
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try {
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fc.write(dst, -1);
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throw new RuntimeException("Expected IAE not thrown");
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} catch (IllegalArgumentException iae) {
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// Correct result
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} finally {
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fos.close();
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}
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}
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}
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