| /* |
| * 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.sshd; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.OutputStream; |
| import java.nio.charset.StandardCharsets; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.EnumSet; |
| import java.util.List; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.sshd.client.SshClient; |
| import org.apache.sshd.client.channel.ClientChannel; |
| import org.apache.sshd.client.channel.ClientChannelEvent; |
| import org.apache.sshd.client.session.ClientSession; |
| import org.apache.sshd.common.channel.Channel; |
| import org.apache.sshd.common.util.security.SecurityUtils; |
| import org.apache.sshd.core.CoreModuleProperties; |
| import org.apache.sshd.server.SshServer; |
| import org.apache.sshd.util.test.BaseTestSupport; |
| import org.junit.After; |
| import org.junit.Assume; |
| import org.junit.Before; |
| import org.junit.BeforeClass; |
| import org.junit.FixMethodOrder; |
| import org.junit.Test; |
| import org.junit.runners.MethodSorters; |
| |
| @FixMethodOrder(MethodSorters.NAME_ASCENDING) |
| public class LoadTest extends BaseTestSupport { |
| |
| private SshServer sshd; |
| private int port; |
| |
| public LoadTest() { |
| super(); |
| } |
| |
| @BeforeClass // FIXME inexplicably these tests fail without BC since SSHD-1004 |
| public static void ensureBouncycastleRegistered() { |
| Assume.assumeTrue("Requires BC security provider", SecurityUtils.isBouncyCastleRegistered()); |
| } |
| |
| @Before |
| public void setUp() throws Exception { |
| sshd = setupTestFullSupportServer(); |
| sshd.start(); |
| port = sshd.getPort(); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| sshd.stop(true); |
| } |
| |
| @Test |
| public void testLoad() throws Exception { |
| test("this is my command", 4, 4); |
| } |
| |
| @Test |
| public void testHighLoad() throws Exception { |
| final StringBuilder response = new StringBuilder(1000000); |
| for (int i = 0; i < 100000; i++) { |
| response.append("0123456789"); |
| } |
| test(response.toString(), 1, 100); |
| } |
| |
| @Test |
| public void testBigResponse() throws Exception { |
| final StringBuilder response = new StringBuilder(1000000); |
| for (int i = 0; i < 100000; i++) { |
| response.append("0123456789"); |
| } |
| test(response.toString(), 1, 1); |
| } |
| |
| protected void test(final String msg, final int nbThreads, final int nbSessionsPerThread) throws Exception { |
| final List<Throwable> errors = new ArrayList<>(); |
| final CountDownLatch latch = new CountDownLatch(nbThreads); |
| for (int i = 0; i < nbThreads; i++) { |
| Runnable r = () -> { |
| try { |
| for (int i1 = 0; i1 < nbSessionsPerThread; i1++) { |
| runClient(msg); |
| } |
| } catch (Throwable t) { |
| errors.add(t); |
| } finally { |
| latch.countDown(); |
| } |
| }; |
| new Thread(r).start(); |
| } |
| latch.await(); |
| if (errors.size() > 0) { |
| throw new Exception("Errors", errors.get(0)); |
| } |
| } |
| |
| @SuppressWarnings("checkstyle:nestedtrydepth") |
| protected void runClient(String msg) throws Exception { |
| try (SshClient client = setupTestFullSupportClient()) { |
| CoreModuleProperties.MAX_PACKET_SIZE.set(client, 1024L * 16); |
| CoreModuleProperties.WINDOW_SIZE.set(client, 1024L * 8); |
| client.start(); |
| try (ClientSession session |
| = client.connect(getCurrentTestName(), TEST_LOCALHOST, port).verify(CONNECT_TIMEOUT).getSession()) { |
| session.addPasswordIdentity(getCurrentTestName()); |
| session.auth().verify(AUTH_TIMEOUT); |
| |
| try (ByteArrayOutputStream out = new ByteArrayOutputStream(); |
| ByteArrayOutputStream err = new ByteArrayOutputStream(); |
| ClientChannel channel = session.createChannel(Channel.CHANNEL_SHELL)) { |
| channel.setOut(out); |
| channel.setErr(err); |
| |
| try { |
| channel.open().verify(OPEN_TIMEOUT); |
| try (OutputStream pipedIn = channel.getInvertedIn()) { |
| msg += "\nexit\n"; |
| pipedIn.write(msg.getBytes(StandardCharsets.UTF_8)); |
| pipedIn.flush(); |
| } |
| |
| Collection<ClientChannelEvent> result |
| = channel.waitFor(EnumSet.of(ClientChannelEvent.CLOSED), TimeUnit.SECONDS.toMillis(15L)); |
| assertFalse("Timeout while waiting for channel closure", result.contains(ClientChannelEvent.TIMEOUT)); |
| } finally { |
| channel.close(false); |
| } |
| |
| assertArrayEquals("Mismatched message data", msg.getBytes(StandardCharsets.UTF_8), out.toByteArray()); |
| } |
| } finally { |
| client.stop(); |
| } |
| } |
| } |
| } |