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headersUsingHigherValuedStreamIdPreventsUsingLowerStreamId() — netty Function Reference

Architecture documentation for the headersUsingHigherValuedStreamIdPreventsUsingLowerStreamId() function in Http2ConnectionRoundtripTest.java from the netty codebase.

Function java Buffer Allocators calls 1

Entity Profile

Dependency Diagram

graph TD
  dde7be9c_363c_7ad0_e348_fa60e9ac1705["headersUsingHigherValuedStreamIdPreventsUsingLowerStreamId()"]
  0d6189e8_c033_39ff_d087_9019351440fe["Http2ConnectionRoundtripTest"]
  dde7be9c_363c_7ad0_e348_fa60e9ac1705 -->|defined in| 0d6189e8_c033_39ff_d087_9019351440fe
  1dd685b8_9b56_5b35_70ca_7f2bf9016254["bootstrapEnv()"]
  dde7be9c_363c_7ad0_e348_fa60e9ac1705 -->|calls| 1dd685b8_9b56_5b35_70ca_7f2bf9016254
  style dde7be9c_363c_7ad0_e348_fa60e9ac1705 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

codec-http2/src/test/java/io/netty/handler/codec/http2/Http2ConnectionRoundtripTest.java lines 473–505

    @Test
    public void headersUsingHigherValuedStreamIdPreventsUsingLowerStreamId() throws Exception {
        bootstrapEnv(1, 1, 2, 0);

        final Http2Headers headers = dummyHeaders();
        runInChannel(clientChannel, new Http2Runnable() {
            @Override
            public void run() throws Http2Exception {
                http2Client.encoder().writeHeaders(ctx(), 5, headers, 0, (short) 16, false, 0, false,
                        newPromise());
                http2Client.encoder().frameWriter().writeHeaders(ctx(), 3, headers, 0, (short) 16, false, 0, false,
                        newPromise());
                http2Client.flush(ctx());
            }
        });

        assertTrue(serverSettingsAckLatch.await(DEFAULT_AWAIT_TIMEOUT_SECONDS, SECONDS));
        assertTrue(requestLatch.await(DEFAULT_AWAIT_TIMEOUT_SECONDS, SECONDS));

        verify(serverListener).onHeadersRead(any(ChannelHandlerContext.class), eq(5), eq(headers), eq(0),
                eq((short) 16), eq(false), eq(0), eq(false));
        verify(serverListener, never()).onHeadersRead(any(ChannelHandlerContext.class), eq(3), any(Http2Headers.class),
                anyInt(), anyShort(), anyBoolean(), anyInt(), anyBoolean());

        // Client should receive a RST_STREAM for stream 3, but there is not Http2Stream object so the listener is never
        // notified.
        verify(serverListener, never()).onGoAwayRead(any(ChannelHandlerContext.class), anyInt(), anyLong(),
                any(ByteBuf.class));
        verify(serverListener, never()).onRstStreamRead(any(ChannelHandlerContext.class), anyInt(), anyLong());
        verify(clientListener, never()).onGoAwayRead(any(ChannelHandlerContext.class), anyInt(), anyLong(),
                any(ByteBuf.class));
        verify(clientListener, never()).onRstStreamRead(any(ChannelHandlerContext.class), anyInt(), anyLong());
    }

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Defined In

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Source

Frequently Asked Questions

What does headersUsingHigherValuedStreamIdPreventsUsingLowerStreamId() do?
headersUsingHigherValuedStreamIdPreventsUsingLowerStreamId() is a function in the netty codebase, defined in codec-http2/src/test/java/io/netty/handler/codec/http2/Http2ConnectionRoundtripTest.java.
Where is headersUsingHigherValuedStreamIdPreventsUsingLowerStreamId() defined?
headersUsingHigherValuedStreamIdPreventsUsingLowerStreamId() is defined in codec-http2/src/test/java/io/netty/handler/codec/http2/Http2ConnectionRoundtripTest.java at line 473.
What does headersUsingHigherValuedStreamIdPreventsUsingLowerStreamId() call?
headersUsingHigherValuedStreamIdPreventsUsingLowerStreamId() calls 1 function(s): bootstrapEnv.

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