KqueueRegistrationTest Class — netty Architecture

Source Code

transport-native-kqueue/src/test/java/io/netty/channel/kqueue/KqueueRegistrationTest.java lines 35–71

public class KqueueRegistrationTest {

    @BeforeEach
    public void setUp() {
        KQueue.ensureAvailability();
    }

    @Test
    void testFdReuse() throws Exception {
        Bootstrap bootstrap = new Bootstrap();
        EventLoopGroup group = new MultiThreadIoEventLoopGroup(1, KQueueIoHandler.newFactory());
        Promise<Throwable> promise = ImmediateEventExecutor.INSTANCE.newPromise();
        try {
            bootstrap.group(group)
                    .channel(KQueueSocketChannel.class)
                    .handler(new LoggingHandler());
            bootstrap.connect(new InetSocketAddress(NetUtil.LOCALHOST, SocketTestPermutation.UNASSIGNED_PORT))
                    .addListener((ChannelFutureListener) f1 -> {
                        if (f1.cause() instanceof ConnectException) {
                            f1.channel().close();
                            bootstrap.connect(new InetSocketAddress(NetUtil.LOCALHOST,
                                            SocketTestPermutation.UNASSIGNED_PORT))
                                    .addListener((ChannelFutureListener) f2 -> {
                                        f2.channel().close();
                                        promise.setSuccess(f2.cause());
                                    });
                        } else {
                            promise.setFailure(new IllegalStateException());
                        }
                    });
            Throwable cause = promise.sync().getNow();
            assertInstanceOf(ConnectException.class, cause);
        } finally {
            group.shutdownGracefully();
        }
    }
}