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/*******************************************************************************
* Copyright (c) 2009, 2015 Mountainminds GmbH & Co. KG and Contributors
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Marc R. Hoffmann - initial API and implementation
*
*******************************************************************************/
package org.jacoco.agent.rt.internal.output;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketException;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import org.junit.Before;
import org.junit.Test;
/**
* Unit tests for {@link MockSocketConnection}.
*/
public class MockSocketConnectionTest extends ExecutorTestBase {
/**
* To verify that the tests reflect the behavior of real TCP sockets this
* flag can be set to <code>true</code>.
*/
private static final boolean REAL_SOCKETS = Boolean
.getBoolean("MockSocketConnectionTest.realSockets");
private Socket a;
private Socket b;
@Before
@Override
public void setup() throws Exception {
super.setup();
if (REAL_SOCKETS) {
createRealSockets();
} else {
createMockSockets();
}
}
private void createMockSockets() throws Exception {
final MockSocketConnection con = new MockSocketConnection();
a = con.getSocketA();
b = con.getSocketB();
}
private void createRealSockets() throws Exception {
System.err.println("Using Real Sockets!");
final InetAddress addr = InetAddress.getByName("localhost");
ServerSocket ssocket = new ServerSocket(16300, 1, addr);
a = new Socket(addr, 16300);
b = ssocket.accept();
ssocket.close();
}
@Test
public void testIsClosed() throws Exception {
assertFalse(a.isClosed());
a.close();
assertTrue(a.isClosed());
}
@Test(expected = SocketException.class)
public void testGetInputStreamOnClosedSocket() throws Exception {
a.close();
a.getInputStream();
}
@Test(expected = SocketException.class)
public void testReadOnClosedSocket() throws Exception {
final InputStream in = a.getInputStream();
a.close();
in.read();
}
@Test(expected = SocketException.class)
public void testReadOnClosedSocketAsync() throws Throwable {
final InputStream in = a.getInputStream();
final Future<Void> f = executor.submit(new Callable<Void>() {
public Void call() throws Exception {
in.read();
return null;
}
});
assertBlocks(f);
a.close();
try {
f.get();
} catch (ExecutionException e) {
throw e.getCause();
}
}
@Test(expected = SocketException.class)
public void testGetOutputStreamOnClosedSocket() throws Exception {
a.close();
a.getOutputStream();
}
@Test(expected = SocketException.class)
public void testWriteOnClosedSocket() throws Exception {
final OutputStream out = a.getOutputStream();
a.close();
out.write(123);
}
@Test
public void testContents() throws Exception {
final InputStream in = a.getInputStream();
final OutputStream out = b.getOutputStream();
assertEquals(0, in.available());
out.write(0);
out.write(1);
out.write(2);
out.write(255);
if (!REAL_SOCKETS) {
// Real sockets will have a delay
assertEquals(4, in.available());
}
assertEquals(0, in.read());
assertEquals(1, in.read());
assertEquals(2, in.read());
assertEquals(255, in.read());
}
@Test
public void testWaitForContents() throws Exception {
final InputStream in = a.getInputStream();
final OutputStream out = b.getOutputStream();
final Future<Byte> f = executor.submit(new Callable<Byte>() {
public Byte call() throws Exception {
return Byte.valueOf((byte) in.read());
}
});
assertBlocks(f);
out.write(123);
assertEquals(123, f.get().byteValue());
}
@Test
public void testCloseOtherSocket() throws Exception {
b.close();
final InputStream in = a.getInputStream();
assertEquals(-1, in.read());
}
@Test
public void testCloseOtherSocketAsync() throws Exception {
final InputStream in = a.getInputStream();
final Future<Byte> f = executor.submit(new Callable<Byte>() {
public Byte call() throws Exception {
return Byte.valueOf((byte) in.read());
}
});
assertBlocks(f);
b.close();
assertEquals(-1, f.get().byteValue());
}
}
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