| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF 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 org.apache.tuweni.net.coroutines |
| |
| import kotlinx.coroutines.async |
| import kotlinx.coroutines.runBlocking |
| import org.junit.jupiter.api.Assertions |
| import org.junit.jupiter.api.Assertions.assertEquals |
| import org.junit.jupiter.api.Assertions.assertNotNull |
| import org.junit.jupiter.api.Assertions.assertTrue |
| import org.junit.jupiter.api.Test |
| import java.net.InetAddress |
| import java.net.InetSocketAddress |
| import java.nio.ByteBuffer |
| import java.nio.charset.StandardCharsets.UTF_8 |
| |
| internal class CoroutineSocketChannelTest { |
| |
| @Test |
| fun shouldSuspendServerSocketChannelWhileAccepting() = runBlocking { |
| val listenChannel = CoroutineServerSocketChannel.open() |
| Assertions.assertNull(listenChannel.localAddress) |
| assertEquals(0, listenChannel.localPort) |
| |
| listenChannel.bind(null) |
| assertNotNull(listenChannel.localAddress) |
| assertTrue(listenChannel.localPort > 0) |
| val addr = InetSocketAddress(InetAddress.getLoopbackAddress(), listenChannel.localPort) |
| |
| var didBlock = false |
| val job = async { |
| val serverChannel = listenChannel.accept() |
| assertNotNull(serverChannel) |
| assertTrue(didBlock) |
| } |
| |
| Thread.sleep(100) |
| didBlock = true |
| |
| val clientChannel = CoroutineSocketChannel.open() |
| clientChannel.connect(addr) |
| job.await() |
| } |
| |
| @Test |
| fun shouldBlockSocketChannelWhileReading() = runBlocking { |
| val listenChannel = CoroutineServerSocketChannel.open() |
| listenChannel.bind(null) |
| val addr = |
| InetSocketAddress(InetAddress.getLoopbackAddress(), (listenChannel.localAddress as InetSocketAddress).port) |
| |
| val serverJob = async { |
| val serverChannel = listenChannel.accept() |
| assertNotNull(serverChannel) |
| |
| assertTrue(serverChannel.isConnected) |
| val dst = ByteBuffer.allocate(1024) |
| serverChannel.read(dst) |
| |
| dst.flip() |
| val chars = ByteArray(dst.limit()) |
| dst.get(chars, 0, dst.limit()) |
| assertEquals("testing123456", String(chars, UTF_8)) |
| |
| serverChannel.write(ByteBuffer.wrap("654321abcdefg".toByteArray(UTF_8))) |
| |
| serverChannel.close() |
| } |
| |
| val clientJob = async { |
| val clientChannel = CoroutineSocketChannel.open() |
| clientChannel.connect(addr) |
| |
| clientChannel.write(ByteBuffer.wrap("testing123456".toByteArray(UTF_8))) |
| |
| val dst = ByteBuffer.allocate(1024) |
| clientChannel.read(dst) |
| |
| dst.flip() |
| val chars = ByteArray(dst.limit()) |
| dst.get(chars, 0, dst.limit()) |
| assertEquals("654321abcdefg", String(chars, UTF_8)) |
| |
| clientChannel.close() |
| } |
| |
| serverJob.await() |
| clientJob.await() |
| } |
| |
| @Test |
| fun shouldCloseSocketChannelWhenRemoteClosed() = runBlocking { |
| val listenChannel = CoroutineServerSocketChannel.open() |
| listenChannel.bind(null) |
| val addr = |
| InetSocketAddress(InetAddress.getLoopbackAddress(), (listenChannel.localAddress as InetSocketAddress).port) |
| |
| val serverJob = async { |
| val serverChannel = listenChannel.accept() |
| assertNotNull(serverChannel) |
| assertTrue(serverChannel.isConnected) |
| |
| val dst = ByteBuffer.allocate(1024) |
| serverChannel.read(dst) |
| |
| dst.flip() |
| val chars = ByteArray(dst.limit()) |
| dst.get(chars, 0, dst.limit()) |
| assertEquals("testing123456", String(chars, UTF_8)) |
| |
| serverChannel.close() |
| } |
| |
| val clientJob = async { |
| val clientChannel = CoroutineSocketChannel.open() |
| clientChannel.connect(addr) |
| |
| clientChannel.write(ByteBuffer.wrap("testing123456".toByteArray(UTF_8))) |
| |
| val dst = ByteBuffer.allocate(1024) |
| assertTrue(clientChannel.read(dst) < 0) |
| |
| clientChannel.close() |
| } |
| |
| serverJob.await() |
| clientJob.await() |
| } |
| } |