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/*
* Copyright (c) 2021, 2023, 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.
*/
import java.io.OutputStream;
import java.io.IOException;
import java.nio.channels.Channels;
import java.nio.channels.Pipe;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import static java.lang.String.format;
/*
* @test
* @library /test/lib
* @build jdk.test.lib.RandomFactory
* @run testng/othervm/timeout=180 TransferTo2
* @bug 8278268
* @summary Tests FileChannel.transferFrom() optimized case
* @key randomness
*/
public class TransferTo2 extends TransferToBase {
/*
* Provides test scenarios, i.e., combinations of input and output streams
* to be tested.
*/
@DataProvider
public static Object[][] streamCombinations() {
return new Object[][] {
// tests FileChannel.transferFrom(SelectableChannelOutput) optimized case
{selectableChannelInput(), fileChannelOutput()},
// tests FileChannel.transferFrom(ReadableByteChannelInput) optimized case
{readableByteChannelInput(), fileChannelOutput()},
};
}
/*
* Input streams to be tested.
*/
@DataProvider
public static Object[][] inputStreamProviders() {
return new Object[][] {
{selectableChannelInput()},
{readableByteChannelInput()}
};
}
/*
* Testing API compliance: input stream must throw NullPointerException
* when parameter "out" is null.
*/
@Test(dataProvider = "inputStreamProviders")
public void testNullPointerException(InputStreamProvider inputStreamProvider) {
assertNullPointerException(inputStreamProvider);
}
/*
* Testing API compliance: complete content of input stream must be
* transferred to output stream.
*/
@Test(dataProvider = "streamCombinations")
public void testStreamContents(InputStreamProvider inputStreamProvider,
OutputStreamProvider outputStreamProvider) throws Exception {
assertStreamContents(inputStreamProvider, outputStreamProvider);
}
/*
* Creates a provider for an input stream which wraps a selectable channel
*/
private static InputStreamProvider selectableChannelInput() {
return bytes -> {
Pipe pipe = Pipe.open();
new Thread(() -> {
try (OutputStream os = Channels.newOutputStream(pipe.sink())) {
os.write(bytes);
} catch (IOException e) {
throw new RuntimeException(e);
}
}).start();
return Channels.newInputStream(pipe.source());
};
}
}
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