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testMultiCompressedPayloadWithinFrame() — netty Function Reference

Architecture documentation for the testMultiCompressedPayloadWithinFrame() function in PerMessageDeflateDecoderTest.java from the netty codebase.

Function java Buffer Allocators

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Dependency Diagram

graph TD
  a28b29ae_ed92_8d5f_ef8a_fd2aa8e615ac["testMultiCompressedPayloadWithinFrame()"]
  5fb9cabd_f848_d24f_11ed_16ea8470984d["PerMessageDeflateDecoderTest"]
  a28b29ae_ed92_8d5f_ef8a_fd2aa8e615ac -->|defined in| 5fb9cabd_f848_d24f_11ed_16ea8470984d
  style a28b29ae_ed92_8d5f_ef8a_fd2aa8e615ac fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

codec-http/src/test/java/io/netty/handler/codec/http/websocketx/extensions/compression/PerMessageDeflateDecoderTest.java lines 160–200

    @Test
    public void testMultiCompressedPayloadWithinFrame() {
        EmbeddedChannel encoderChannel = new EmbeddedChannel(
                ZlibCodecFactory.newZlibEncoder(ZlibWrapper.NONE, 9, 15, 8));
        EmbeddedChannel decoderChannel = new EmbeddedChannel(new PerMessageDeflateDecoder(false, 0));

        // initialize
        byte[] payload1 = new byte[100];
        random.nextBytes(payload1);
        byte[] payload2 = new byte[100];
        random.nextBytes(payload2);

        assertTrue(encoderChannel.writeOutbound(Unpooled.wrappedBuffer(payload1)));
        ByteBuf compressedPayload1 = encoderChannel.readOutbound();
        assertTrue(encoderChannel.writeOutbound(Unpooled.wrappedBuffer(payload2)));
        ByteBuf compressedPayload2 = encoderChannel.readOutbound();

        BinaryWebSocketFrame compressedFrame = new BinaryWebSocketFrame(true,
                WebSocketExtension.RSV1 | WebSocketExtension.RSV3,
                Unpooled.wrappedBuffer(
                        compressedPayload1,
                        compressedPayload2.slice(0, compressedPayload2.readableBytes() - 4)));

        // execute
        assertTrue(decoderChannel.writeInbound(compressedFrame));
        BinaryWebSocketFrame uncompressedFrame = decoderChannel.readInbound();

        // test
        assertNotNull(uncompressedFrame);
        assertNotNull(uncompressedFrame.content());
        assertEquals(WebSocketExtension.RSV3, uncompressedFrame.rsv());
        assertEquals(200, uncompressedFrame.content().readableBytes());

        byte[] finalPayload1 = new byte[100];
        uncompressedFrame.content().readBytes(finalPayload1);
        assertArrayEquals(finalPayload1, payload1);
        byte[] finalPayload2 = new byte[100];
        uncompressedFrame.content().readBytes(finalPayload2);
        assertArrayEquals(finalPayload2, payload2);
        uncompressedFrame.release();
    }

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Frequently Asked Questions

What does testMultiCompressedPayloadWithinFrame() do?
testMultiCompressedPayloadWithinFrame() is a function in the netty codebase, defined in codec-http/src/test/java/io/netty/handler/codec/http/websocketx/extensions/compression/PerMessageDeflateDecoderTest.java.
Where is testMultiCompressedPayloadWithinFrame() defined?
testMultiCompressedPayloadWithinFrame() is defined in codec-http/src/test/java/io/netty/handler/codec/http/websocketx/extensions/compression/PerMessageDeflateDecoderTest.java at line 160.

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