netty Architecture Docs
Home / Function/ testUpgrade() — netty Function Reference

testUpgrade() — netty Function Reference

Architecture documentation for the testUpgrade() function in Http2ServerUpgradeCodecTest.java from the netty codebase.

Function java Buffer Allocators called by 4

Entity Profile

Dependency Diagram

graph TD
  61c47b6e_2bab_16be_fa4f_ac99a5ef3cac["testUpgrade()"]
  6d2db9e7_0b7a_7341_c043_d99766aa1a80["Http2ServerUpgradeCodecTest"]
  61c47b6e_2bab_16be_fa4f_ac99a5ef3cac -->|defined in| 6d2db9e7_0b7a_7341_c043_d99766aa1a80
  c411b311_33ef_716c_dcb8_391cff758ace["testUpgradeToHttp2ConnectionHandler()"]
  c411b311_33ef_716c_dcb8_391cff758ace -->|calls| 61c47b6e_2bab_16be_fa4f_ac99a5ef3cac
  6b6955bc_200a_3021_70af_8eb8026b9ab9["testUpgradeToHttp2FrameCodec()"]
  6b6955bc_200a_3021_70af_8eb8026b9ab9 -->|calls| 61c47b6e_2bab_16be_fa4f_ac99a5ef3cac
  f9a1f3a9_d901_061b_85a7_c7c424cbd6ff["testUpgradeToHttp2MultiplexCodec()"]
  f9a1f3a9_d901_061b_85a7_c7c424cbd6ff -->|calls| 61c47b6e_2bab_16be_fa4f_ac99a5ef3cac
  553833c4_99f3_43a8_377b_50e35f308e70["testUpgradeToHttp2FrameCodecWithMultiplexer()"]
  553833c4_99f3_43a8_377b_50e35f308e70 -->|calls| 61c47b6e_2bab_16be_fa4f_ac99a5ef3cac
  style 61c47b6e_2bab_16be_fa4f_ac99a5ef3cac fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

codec-http2/src/test/java/io/netty/handler/codec/http2/Http2ServerUpgradeCodecTest.java lines 62–103

    private static void testUpgrade(Http2ConnectionHandler handler, ChannelHandler multiplexer) {
        FullHttpRequest request = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.OPTIONS, "*");
        request.headers().set(HttpHeaderNames.HOST, "netty.io");
        request.headers().set(HttpHeaderNames.CONNECTION, "Upgrade, HTTP2-Settings");
        request.headers().set(HttpHeaderNames.UPGRADE, "h2c");
        request.headers().set("HTTP2-Settings", "AAMAAABkAAQAAP__");

        ServerChannel parent = Mockito.mock(ServerChannel.class);
        EmbeddedChannel channel = new EmbeddedChannel(parent, DefaultChannelId.newInstance(), true, false,
                new ChannelInboundHandlerAdapter());
        ChannelHandlerContext ctx = channel.pipeline().firstContext();
        Http2ServerUpgradeCodec codec;
        if (multiplexer == null) {
            codec = new Http2ServerUpgradeCodec(handler);
        } else {
            codec = new Http2ServerUpgradeCodec((Http2FrameCodec) handler, multiplexer);
        }
        assertTrue(codec.prepareUpgradeResponse(ctx, request, new DefaultHttpHeaders()));
        codec.upgradeTo(ctx, request);
        // Flush the channel to ensure we write out all buffered data
        channel.flush();

        channel.writeInbound(Http2CodecUtil.connectionPrefaceBuf());
        Http2FrameInboundWriter writer = new Http2FrameInboundWriter(channel);
        writer.writeInboundSettings(new Http2Settings());
        writer.writeInboundRstStream(Http2CodecUtil.HTTP_UPGRADE_STREAM_ID, Http2Error.CANCEL.code());

        assertSame(handler, channel.pipeline().remove(handler.getClass()));
        assertNull(channel.pipeline().get(handler.getClass()));
        assertTrue(channel.finish());

        // Check that the preface was send (a.k.a the settings frame)
        ByteBuf settingsBuffer = channel.readOutbound();
        assertNotNull(settingsBuffer);
        settingsBuffer.release();

        ByteBuf buf = channel.readOutbound();
        assertNotNull(buf);
        buf.release();

        assertNull(channel.readOutbound());
    }

Domain

Subdomains

Defined In

Called By

Source

Frequently Asked Questions

What does testUpgrade() do?
testUpgrade() is a function in the netty codebase, defined in codec-http2/src/test/java/io/netty/handler/codec/http2/Http2ServerUpgradeCodecTest.java.
Where is testUpgrade() defined?
testUpgrade() is defined in codec-http2/src/test/java/io/netty/handler/codec/http2/Http2ServerUpgradeCodecTest.java at line 62.
What calls testUpgrade()?
testUpgrade() is called by 4 function(s): testUpgradeToHttp2ConnectionHandler, testUpgradeToHttp2FrameCodec, testUpgradeToHttp2FrameCodecWithMultiplexer, testUpgradeToHttp2MultiplexCodec.

Analyze Your Own Codebase

Get architecture documentation, dependency graphs, and domain analysis for your codebase in minutes.

Try Supermodel Free