EpollServerSocketChannelConfigTest Class — netty Architecture

Source Code

transport-native-epoll/src/test/java/io/netty/channel/epoll/EpollServerSocketChannelConfigTest.java lines 37–104

public class EpollServerSocketChannelConfigTest {

    private static EventLoopGroup group;
    private static EpollServerSocketChannel ch;

    @BeforeAll
    public static void before() {
        group = new MultiThreadIoEventLoopGroup(1,  EpollIoHandler.newFactory());
        ServerBootstrap bootstrap = new ServerBootstrap();
        ch = (EpollServerSocketChannel) bootstrap.group(group)
                .channel(EpollServerSocketChannel.class)
                .childHandler(new ChannelInboundHandlerAdapter())
                .bind(new InetSocketAddress(0)).syncUninterruptibly().channel();
    }

    @AfterAll
    public static void after() {
        try {
            ch.close().syncUninterruptibly();
        } finally {
            group.shutdownGracefully();
        }
    }

    @Test
    public void testTcpDeferAccept() {
        ch.config().setTcpDeferAccept(0);
        assertEquals(0, ch.config().getTcpDeferAccept());
        ch.config().setTcpDeferAccept(10);
        // The returned value may be bigger then what we set.
        // See https://www.spinics.net/lists/netdev/msg117330.html
        assertTrue(10 <= ch.config().getTcpDeferAccept());
    }

    @Test
    public void testReusePort() {
        ch.config().setReusePort(false);
        assertFalse(ch.config().isReusePort());
        ch.config().setReusePort(true);
        assertTrue(ch.config().isReusePort());
    }

    @Test
    public void testFreeBind() {
        ch.config().setFreeBind(false);
        assertFalse(ch.config().isFreeBind());
        ch.config().setFreeBind(true);
        assertTrue(ch.config().isFreeBind());
    }

    @Test
    public void getGetOptions() {
        Map<ChannelOption<?>, Object> map = ch.config().getOptions();
        assertFalse(map.isEmpty());
    }

    @Test
    public void testFastOpen() {
        assertThrows(IllegalArgumentException.class, new Executable() {
            @Override
            public void execute() {
                ch.config().setTcpFastopen(-1);
            }
        });
        ch.config().setTcpFastopen(10);
        assertEquals(10, ch.config().getTcpFastopen());
    }
}