Motivation: We can use the diamond operator these days. Modification: Use diamond operator whenever possible. Result: More modern code and less boiler-plate.
89 lines
3.2 KiB
Java
89 lines
3.2 KiB
Java
/*
|
|
* Copyright 2017 The Netty Project
|
|
*
|
|
* The Netty Project licenses this file to you under the Apache License,
|
|
* version 2.0 (the "License"); you may not use this file except in compliance
|
|
* with the License. You may obtain a copy of the License at:
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*/
|
|
|
|
package io.netty.channel.unix;
|
|
|
|
import io.netty.buffer.ByteBuf;
|
|
import io.netty.buffer.ByteBufAllocator;
|
|
import io.netty.buffer.CompositeByteBuf;
|
|
import io.netty.buffer.PooledByteBufAllocator;
|
|
import io.netty.buffer.UnpooledByteBufAllocator;
|
|
import org.junit.Test;
|
|
|
|
import java.util.Collections;
|
|
import java.util.LinkedList;
|
|
import java.util.List;
|
|
|
|
import static io.netty.channel.unix.UnixChannelUtil.isBufferCopyNeededForWrite;
|
|
import static org.junit.Assert.assertEquals;
|
|
import static org.junit.Assert.assertFalse;
|
|
import static org.junit.Assert.assertTrue;
|
|
|
|
public class UnixChannelUtilTest {
|
|
|
|
private static final int IOV_MAX = 1024;
|
|
|
|
@Test
|
|
public void testPooledAllocatorIsBufferCopyNeededForWrite() {
|
|
testIsBufferCopyNeededForWrite(PooledByteBufAllocator.DEFAULT);
|
|
}
|
|
|
|
@Test
|
|
public void testUnPooledAllocatorIsBufferCopyNeededForWrite() {
|
|
testIsBufferCopyNeededForWrite(UnpooledByteBufAllocator.DEFAULT);
|
|
}
|
|
|
|
private static void testIsBufferCopyNeededForWrite(ByteBufAllocator alloc) {
|
|
ByteBuf byteBuf = alloc.directBuffer();
|
|
assertFalse(isBufferCopyNeededForWrite(byteBuf, IOV_MAX));
|
|
assertFalse(isBufferCopyNeededForWrite(byteBuf.asReadOnly(), IOV_MAX));
|
|
assertTrue(byteBuf.release());
|
|
|
|
byteBuf = alloc.heapBuffer();
|
|
assertTrue(isBufferCopyNeededForWrite(byteBuf, IOV_MAX));
|
|
assertTrue(isBufferCopyNeededForWrite(byteBuf.asReadOnly(), IOV_MAX));
|
|
assertTrue(byteBuf.release());
|
|
|
|
assertCompositeByteBufIsBufferCopyNeededForWrite(alloc, 2, 0, false);
|
|
assertCompositeByteBufIsBufferCopyNeededForWrite(alloc, IOV_MAX + 1, 0, true);
|
|
assertCompositeByteBufIsBufferCopyNeededForWrite(alloc, 0, 2, true);
|
|
assertCompositeByteBufIsBufferCopyNeededForWrite(alloc, 1, 1, true);
|
|
}
|
|
|
|
private static void assertCompositeByteBufIsBufferCopyNeededForWrite(ByteBufAllocator alloc, int numDirect,
|
|
int numHeap, boolean expected) {
|
|
CompositeByteBuf comp = alloc.compositeBuffer(numDirect + numHeap);
|
|
List<ByteBuf> byteBufs = new LinkedList<>();
|
|
|
|
while (numDirect > 0) {
|
|
byteBufs.add(alloc.directBuffer(1));
|
|
numDirect--;
|
|
}
|
|
while (numHeap > 0) {
|
|
byteBufs.add(alloc.heapBuffer(1));
|
|
numHeap--;
|
|
}
|
|
|
|
Collections.shuffle(byteBufs);
|
|
for (ByteBuf byteBuf : byteBufs) {
|
|
comp.addComponent(byteBuf);
|
|
}
|
|
|
|
assertEquals(byteBufs.toString(), expected, isBufferCopyNeededForWrite(comp, IOV_MAX));
|
|
assertTrue(comp.release());
|
|
}
|
|
}
|