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/*
* Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.net.InetAddress;
import java.net.Socket;
import org.testng.annotations.Test;
import static org.testng.Assert.fail;
/*
* @test
* @summary Basic test for the UDP sockets through the java.net.Socket constructors
* @run testng UdpSocket
*/
public class UdpSocket {
/**
* Verifies that the {@code Socket} constructors that take the {@code stream}
* parameter don't allow construction of UDP sockets.
*/
@Test
public void testUDPConstructors() throws Exception {
try {
new Socket("doesnotmatter", 12345, false);
fail("Socket constructor was expected to throw IllegalArgumentException" +
" for stream=false, but didn't");
} catch (IllegalArgumentException iae) {
// verify it's thrown for the right reason
assertExceptionMessage(iae);
}
try {
new Socket(InetAddress.getLoopbackAddress(), 12345, false);
fail("Socket constructor was expected to throw IllegalArgumentException" +
" for stream=false, but didn't");
} catch (IllegalArgumentException iae) {
// verify it's thrown for the right reason
assertExceptionMessage(iae);
}
}
private static void assertExceptionMessage(final IllegalArgumentException iae) {
final String msg = iae.getMessage();
if (msg != null && msg.contains(
"Socket constructor does not support creation of datagram socket")) {
// contains the expected message
return;
}
// unexpected exception message, propagate the original exception
throw iae;
}
}
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