Http2ClientUpgradeCodecTest Class — netty Architecture

Source Code

codec-http2/src/test/java/io/netty/handler/codec/http2/Http2ClientUpgradeCodecTest.java lines 30–86

public class Http2ClientUpgradeCodecTest {

    @Test
    public void testUpgradeToHttp2ConnectionHandler() throws Exception {
        testUpgrade(new Http2ConnectionHandlerBuilder().server(false).frameListener(
            new Http2FrameAdapter()).build(), null);
    }

    @Test
    public void testUpgradeToHttp2FrameCodec() throws Exception {
        testUpgrade(Http2FrameCodecBuilder.forClient().build(), null);
    }

    @Test
    public void testUpgradeToHttp2MultiplexCodec() throws Exception {
        testUpgrade(Http2MultiplexCodecBuilder.forClient(new HttpInboundHandler())
            .withUpgradeStreamHandler(new ChannelInboundHandlerAdapter()).build(), null);
    }

    @Test
    public void testUpgradeToHttp2FrameCodecWithMultiplexer() throws Exception {
        testUpgrade(Http2FrameCodecBuilder.forClient().build(),
            new Http2MultiplexHandler(new HttpInboundHandler(), new HttpInboundHandler()));
    }

    private static void testUpgrade(Http2ConnectionHandler handler, Http2MultiplexHandler multiplexer)
            throws Exception {
        FullHttpRequest request = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.OPTIONS, "*");

        EmbeddedChannel channel = new EmbeddedChannel(new ChannelInboundHandlerAdapter());
        ChannelHandlerContext ctx = channel.pipeline().firstContext();

        Http2ClientUpgradeCodec codec;

        if (multiplexer == null) {
            codec = new Http2ClientUpgradeCodec("connectionHandler", handler);
        } else {
            codec = new Http2ClientUpgradeCodec("connectionHandler", handler, multiplexer);
        }

        codec.setUpgradeHeaders(ctx, request);
        // Flush the channel to ensure we write out all buffered data
        channel.flush();

        codec.upgradeTo(ctx, null);
        assertNotNull(channel.pipeline().get("connectionHandler"));

        if (multiplexer != null) {
            assertNotNull(channel.pipeline().get(Http2MultiplexHandler.class));
        }

        assertTrue(channel.finishAndReleaseAll());
    }

    @ChannelHandler.Sharable
    private static final class HttpInboundHandler extends ChannelInboundHandlerAdapter { }
}