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testMaxHeaderSize2() — netty Function Reference

Architecture documentation for the testMaxHeaderSize2() function in HttpResponseDecoderTest.java from the netty codebase.

Function java Buffer Allocators

Entity Profile

Dependency Diagram

graph TD
  3bc58c15_2107_cc9a_16f0_be19507abe47["testMaxHeaderSize2()"]
  90546a8c_51c4_a9dc_b6e8_695d29269596["HttpResponseDecoderTest"]
  3bc58c15_2107_cc9a_16f0_be19507abe47 -->|defined in| 90546a8c_51c4_a9dc_b6e8_695d29269596
  style 3bc58c15_2107_cc9a_16f0_be19507abe47 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

codec-http/src/test/java/io/netty/handler/codec/http/HttpResponseDecoderTest.java lines 82–107

    @Test
    public void testMaxHeaderSize2() {
        final int maxHeaderSize = 8192;

        final EmbeddedChannel ch = new EmbeddedChannel(new HttpResponseDecoder(4096, maxHeaderSize, 8192));
        final char[] bytes = new char[maxHeaderSize / 2 - 2];
        Arrays.fill(bytes, 'a');

        ch.writeInbound(Unpooled.copiedBuffer("HTTP/1.1 200 OK\r\n", CharsetUtil.US_ASCII));

        // Write a 4096-byte header and a 4097-byte header to test an off-by-one case (= 8193 bytes)
        ch.writeInbound(Unpooled.copiedBuffer("A:", CharsetUtil.US_ASCII));
        ch.writeInbound(Unpooled.copiedBuffer(bytes, CharsetUtil.US_ASCII));
        ch.writeInbound(Unpooled.copiedBuffer("\r\n", CharsetUtil.US_ASCII));
        assertNull(ch.readInbound());
        ch.writeInbound(Unpooled.copiedBuffer("B: ", CharsetUtil.US_ASCII)); // Note an extra space.
        ch.writeInbound(Unpooled.copiedBuffer(bytes, CharsetUtil.US_ASCII));
        ch.writeInbound(Unpooled.copiedBuffer("\r\n", CharsetUtil.US_ASCII));
        ch.writeInbound(Unpooled.copiedBuffer("\r\n", CharsetUtil.US_ASCII));

        HttpResponse res = ch.readInbound();
        assertInstanceOf(TooLongHttpHeaderException.class, res.decoderResult().cause());

        assertFalse(ch.finish());
        assertNull(ch.readInbound());
    }

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Frequently Asked Questions

What does testMaxHeaderSize2() do?
testMaxHeaderSize2() is a function in the netty codebase, defined in codec-http/src/test/java/io/netty/handler/codec/http/HttpResponseDecoderTest.java.
Where is testMaxHeaderSize2() defined?
testMaxHeaderSize2() is defined in codec-http/src/test/java/io/netty/handler/codec/http/HttpResponseDecoderTest.java at line 82.

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