/
EpollSocketChannelConfigTest.java
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/
EpollSocketChannelConfigTest.java
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/*
* Copyright 2015 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:
*
* https://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.epoll;
import io.github.artsok.RepeatedIfExceptionsTest;
import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelException;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.MultithreadEventLoopGroup;
import org.junit.jupiter.api.AfterAll;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.function.Executable;
import org.opentest4j.TestAbortedException;
import java.net.InetSocketAddress;
import java.nio.channels.ClosedChannelException;
import java.util.Map;
import java.util.Random;
import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.junit.jupiter.api.Assertions.fail;
public class EpollSocketChannelConfigTest {
private static EventLoopGroup group;
private static EpollSocketChannel ch;
private static Random rand;
@BeforeAll
public static void beforeClass() {
rand = new Random();
group = new MultithreadEventLoopGroup(1, EpollHandler.newFactory());
}
@AfterAll
public static void afterClass() {
group.shutdownGracefully();
}
@BeforeEach
public void setup() throws Exception {
Bootstrap bootstrap = new Bootstrap();
ch = (EpollSocketChannel) bootstrap.group(group)
.channel(EpollSocketChannel.class)
.handler(new ChannelHandler() { })
.bind(new InetSocketAddress(0)).get();
}
@AfterEach
public void teardown() {
ch.close().syncUninterruptibly();
}
private static long randLong(long min, long max) {
return min + nextLong(max - min + 1);
}
private static long nextLong(long n) {
long bits, val;
do {
bits = rand.nextLong() << 1 >>> 1;
val = bits % n;
} while (bits - val + n - 1 < 0L);
return val;
}
@Test
public void testRandomTcpNotSentLowAt() {
final long expected = randLong(0, 0xFFFFFFFFL);
final long actual;
try {
ch.config().setTcpNotSentLowAt(expected);
actual = ch.config().getTcpNotSentLowAt();
} catch (RuntimeException e) {
throw new TestAbortedException("assumeNoException", e);
}
assertEquals(expected, actual);
}
@Test
public void testInvalidHighTcpNotSentLowAt() {
try {
final long value = 0xFFFFFFFFL + 1;
ch.config().setTcpNotSentLowAt(value);
} catch (IllegalArgumentException e) {
return;
} catch (RuntimeException e) {
throw new TestAbortedException("assumeNoException", e);
}
fail();
}
@Test
public void testInvalidLowTcpNotSentLowAt() {
try {
final long value = -1;
ch.config().setTcpNotSentLowAt(value);
} catch (IllegalArgumentException e) {
return;
} catch (RuntimeException e) {
throw new TestAbortedException("assumeNoException", e);
}
fail();
}
@Test
public void testTcpCork() {
ch.config().setTcpCork(false);
assertFalse(ch.config().isTcpCork());
ch.config().setTcpCork(true);
assertTrue(ch.config().isTcpCork());
}
@Test
public void testTcpQickAck() {
ch.config().setTcpQuickAck(false);
assertFalse(ch.config().isTcpQuickAck());
ch.config().setTcpQuickAck(true);
assertTrue(ch.config().isTcpQuickAck());
}
// For this test to pass, we are relying on the sockets file descriptor not being reused after the socket is closed.
// This is inherently racy, so we allow getSoLinger to throw ChannelException a few of times, but eventually we do
// want to see a ClosedChannelException for the test to pass.
@RepeatedIfExceptionsTest(repeats = 4)
public void testSetOptionWhenClosed() {
ch.close().syncUninterruptibly();
ChannelException e = assertThrows(ChannelException.class, new Executable() {
@Override
public void execute() throws Throwable {
ch.config().setSoLinger(0);
}
});
assertThat(e).hasCauseInstanceOf(ClosedChannelException.class);
}
// For this test to pass, we are relying on the sockets file descriptor not being reused after the socket is closed.
// This is inherently racy, so we allow getSoLinger to throw ChannelException a few of times, but eventually we do
// want to see a ClosedChannelException for the test to pass.
@RepeatedIfExceptionsTest(repeats = 4)
public void testGetOptionWhenClosed() {
ch.close().syncUninterruptibly();
ChannelException e = assertThrows(ChannelException.class, new Executable() {
@Override
public void execute() throws Throwable {
ch.config().getSoLinger();
}
});
assertThat(e).hasCauseInstanceOf(ClosedChannelException.class);
}
@Test
public void getGetOptions() {
Map<ChannelOption<?>, Object> map = ch.config().getOptions();
assertFalse(map.isEmpty());
}
}