russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
106 lines
3.7 KiB
Java
106 lines
3.7 KiB
Java
/*
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* Copyright (c) 2021, 2026, 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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import java.io.OutputStream;
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import java.io.IOException;
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import java.nio.channels.Channels;
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import java.nio.channels.Pipe;
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import java.util.stream.Stream;
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import org.junit.jupiter.params.ParameterizedTest;
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import org.junit.jupiter.params.provider.Arguments;
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import org.junit.jupiter.params.provider.MethodSource;
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import static java.lang.String.format;
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/*
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* @test
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* @library /test/lib
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* @build jdk.test.lib.RandomFactory
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* @run junit/othervm/timeout=180 TransferTo2
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* @bug 8278268
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* @summary Tests FileChannel.transferFrom() optimized case
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* @key randomness
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*/
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public class TransferTo2 extends TransferToBase {
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/*
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* Provides test scenarios, i.e., combinations of input and output streams
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* to be tested.
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*/
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public static Stream<Arguments> streamCombinations() {
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return Stream.of
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(// tests FileChannel.transferFrom(SelectableChannelOutput) optimized case
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Arguments.of(selectableChannelInput(), fileChannelOutput()),
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// tests FileChannel.transferFrom(ReadableByteChannelInput) optimized case
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Arguments.of(readableByteChannelInput(), fileChannelOutput()));
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}
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/*
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* Input streams to be tested.
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*/
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public static Stream<Arguments> inputStreamProviders() {
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return Stream.of(Arguments.of(selectableChannelInput()),
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Arguments.of(readableByteChannelInput()));
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}
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/*
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* Testing API compliance: input stream must throw NullPointerException
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* when parameter "out" is null.
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*/
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@ParameterizedTest
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@MethodSource("inputStreamProviders")
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public void testNullPointerException(InputStreamProvider inputStreamProvider) {
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assertNullPointerException(inputStreamProvider);
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}
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/*
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* Testing API compliance: complete content of input stream must be
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* transferred to output stream.
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*/
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@ParameterizedTest
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@MethodSource("streamCombinations")
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public void testStreamContents(InputStreamProvider inputStreamProvider,
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OutputStreamProvider outputStreamProvider) throws Exception {
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assertStreamContents(inputStreamProvider, outputStreamProvider);
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}
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/*
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* Creates a provider for an input stream which wraps a selectable channel
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*/
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private static InputStreamProvider selectableChannelInput() {
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return bytes -> {
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Pipe pipe = Pipe.open();
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new Thread(() -> {
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try (OutputStream os = Channels.newOutputStream(pipe.sink())) {
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os.write(bytes);
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} catch (IOException e) {
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throw new RuntimeException(e);
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}
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}).start();
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return Channels.newInputStream(pipe.source());
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};
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}
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}
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