| /******************************************************************************* |
| * Copyright (c) 2020 Paul Pazderski and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Paul Pazderski - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.debug.tests.console; |
| |
| import static org.junit.Assert.assertArrayEquals; |
| import static org.junit.Assert.assertEquals; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.io.PipedInputStream; |
| import java.io.PipedOutputStream; |
| import java.nio.charset.Charset; |
| import java.util.Set; |
| |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.debug.internal.core.DebugCoreMessages; |
| import org.eclipse.debug.internal.core.InputStreamMonitor; |
| import org.eclipse.debug.tests.AbstractDebugTest; |
| import org.eclipse.debug.tests.TestUtil; |
| import org.eclipse.debug.tests.TestsPlugin; |
| import org.junit.Test; |
| |
| /** |
| * Tests the {@link InputStreamMonitor}. |
| */ |
| public class InputStreamMonitorTests extends AbstractDebugTest { |
| |
| /** |
| * Simple test for input stream monitor. Write some bytes before starting |
| * the monitor, some after and check if they are correctly transfered. |
| */ |
| @Test |
| @SuppressWarnings("resource") |
| public void testInputStreamMonitor() throws Exception { |
| PipedInputStream sysin = new PipedInputStream(); |
| InputStreamMonitor monitor = new InputStreamMonitor(new PipedOutputStream(sysin)); |
| |
| byte[] content = new byte[100]; |
| for (int i = 0; i < content.length; i++) { |
| content[i] = (byte) (i % 255); |
| } |
| try { |
| int half = content.length / 2; |
| monitor.write(content, 0, half); |
| monitor.startMonitoring(); |
| monitor.write(content, half, content.length - half); |
| Thread.sleep(30); |
| |
| byte[] readBack = new byte[content.length]; |
| int read = sysin.read(readBack); |
| assertEquals("Monitor wrote to few bytes.", read, content.length); |
| assertEquals("Monitor wrote to much bytes.", 0, sysin.available()); |
| assertArrayEquals("Monitor wrote wrong content.", content, readBack); |
| } finally { |
| monitor.close(); |
| } |
| } |
| |
| /** |
| * Test that passing <code>null</code> as charset does not raise exceptions. |
| */ |
| @Test |
| @SuppressWarnings("resource") |
| public void testNullCharset() throws Exception { |
| PipedInputStream sysin = new PipedInputStream(); |
| InputStreamMonitor monitor = new InputStreamMonitor(new PipedOutputStream(sysin), (Charset) null); |
| String text = "o\u00F6O\u00EFiI\u00D6\u00D8\u00F8"; |
| try { |
| monitor.startMonitoring(); |
| monitor.write(text); |
| Thread.sleep(30); |
| |
| byte[] readBack = new byte[1000]; |
| int len = sysin.read(readBack); |
| assertEquals("Monitor wrote wrong content.", text, new String(readBack, 0, len)); |
| } finally { |
| monitor.close(); |
| } |
| } |
| |
| /** |
| * Test different combinations of stream closing. |
| */ |
| @Test |
| @SuppressWarnings("resource") |
| public void testClose() throws Exception { |
| Set<Thread> allThreads = Thread.getAllStackTraces().keySet(); |
| long alreadyLeakedThreads = allThreads.stream().filter(t -> DebugCoreMessages.InputStreamMonitor_label.equals(t.getName())).count(); |
| if (alreadyLeakedThreads > 0) { |
| Platform.getLog(TestsPlugin.class).warn("Test started with " + alreadyLeakedThreads + " leaked monitor threads."); |
| } |
| |
| { |
| ClosableTestOutputStream testStream = new ClosableTestOutputStream(); |
| InputStreamMonitor monitor = new InputStreamMonitor(testStream); |
| assertEquals("Stream closed to early.", 0, testStream.numClosed); |
| monitor.closeInputStream(); |
| TestUtil.waitWhile(() -> testStream.numClosed == 0, 100); |
| assertEquals("Stream not closed.", 1, testStream.numClosed); |
| } |
| { |
| ClosableTestOutputStream testStream = new ClosableTestOutputStream(); |
| InputStreamMonitor monitor = new InputStreamMonitor(testStream); |
| monitor.startMonitoring(); |
| assertEquals("Stream closed to early.", 0, testStream.numClosed); |
| monitor.close(); |
| TestUtil.waitWhile(() -> testStream.numClosed == 0, 200); |
| assertEquals("Stream not closed.", 1, testStream.numClosed); |
| } |
| { |
| ClosableTestOutputStream testStream = new ClosableTestOutputStream(); |
| InputStreamMonitor monitor = new InputStreamMonitor(testStream); |
| monitor.startMonitoring(); |
| assertEquals("Stream closed to early.", 0, testStream.numClosed); |
| monitor.closeInputStream(); |
| monitor.close(); |
| monitor.close(); |
| TestUtil.waitWhile(() -> testStream.numClosed == 0, 100); |
| assertEquals("Stream not closed or to often.", 1, testStream.numClosed); |
| } |
| |
| allThreads = Thread.getAllStackTraces().keySet(); |
| long numMonitorThreads = allThreads.stream().filter(t -> DebugCoreMessages.InputStreamMonitor_label.equals(t.getName())).count(); |
| assertEquals("Leaked monitor threads.", 0, numMonitorThreads); |
| } |
| |
| /** |
| * Extension of output stream to log calls to {@link #close()}. |
| */ |
| public static class ClosableTestOutputStream extends OutputStream { |
| public volatile int numClosed = 0; |
| |
| @Override |
| public void close() throws IOException { |
| numClosed++; |
| } |
| |
| @Override |
| public void write(int b) throws IOException { |
| } |
| } |
| } |