Autobahn WebSocket Testsuite Report
Autobahn WebSocket

websock server - Case 5.6 : Pass - 1 ms @ 2025-11-26T12:36:30.140Z

Case Description

Send text Message fragmented into 2 fragments, one ping with payload in-between.

Case Expectation

A pong is received, then the message is echo'ed back to us.

Case Outcome

Actual events match at least one expected.

Expected:
{'OK': [('pong', u'ping payload'), ('message', u'fragment1fragment2', False)]}

Observed:
[('pong', u'ping payload'), ('message', u'fragment1fragment2', False)]

Case Closing Behavior

The spec requires the connection to be failed cleanly here (UNCLEAN)



Opening Handshake

GET /ws HTTP/1.1
User-Agent: AutobahnTestSuite/25.10.1-0.10.9
Host: 127.0.0.1:8888
Upgrade: WebSocket
Connection: Upgrade
Pragma: no-cache
Cache-Control: no-cache
Sec-WebSocket-Key: LMACNJ5HHzbHaJGYWaJcpw==
Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols
Date: Wed, 26 Nov 2025 12:36:30 GMT
Connection: Upgrade
Upgrade: websocket
Sec-Websocket-Accept: mgPTqvNNpQuaTVeMATehTtbsTz4=


Closing Behavior

KeyValueDescription
isServerFalseTrue, iff I (the fuzzer) am a server, and the peer is a client.
closedByMeTrueTrue, iff I have initiated closing handshake (that is, did send close first).
failedByMeFalseTrue, iff I have failed the WS connection (i.e. due to protocol error). Failing can be either by initiating closing handshake or brutal drop TCP.
droppedByMeFalseTrue, iff I dropped the TCP connection.
wasCleanFalseTrue, iff full WebSocket closing handshake was performed (close frame sent and received) _and_ the server dropped the TCP (which is its responsibility).
wasNotCleanReasonpeer dropped the TCP connection without previous WebSocket closing handshakeWhen wasClean == False, the reason what happened.
wasServerConnectionDropTimeoutFalseWhen we are a client, and we expected the server to drop the TCP, but that didn't happen in time, this gets True.
wasOpenHandshakeTimeoutFalseWhen performing the opening handshake, but the peer did not finish in time, this gets True.
wasCloseHandshakeTimeoutFalseWhen we initiated a closing handshake, but the peer did not respond in time, this gets True.
localCloseCode1000The close code I sent in close frame (if any).
localCloseReasonNoneThe close reason I sent in close frame (if any).
remoteCloseCodeNoneThe close code the peer sent me in close frame (if any).
remoteCloseReasonNoneThe close reason the peer sent me in close frame (if any).


Wire Statistics

Octets Received by Chop Size

Chop SizeCountOctets
34134
1661166
Total2200

Octets Transmitted by Chop Size

Chop SizeCountOctets
818
15230
18118
2441244
Total5300

Frames Received by Opcode

OpcodeCount
11
101
Total2

Frames Transmitted by Opcode

OpcodeCount
01
11
81
91
Total4


Wire Log

000 TX OCTETS: 474554202f777320485454502f312e310d0a557365722d4167656e743a204175746f6261686e5465737453756974652f3235
               2e31302e312d302e31302e390d0a ...
001 RX OCTETS: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a446174653a205765642c203236204e6f
               7620323032352031323a33363a33 ...
002 TX FRAME : OPCODE=1, FIN=False, RSV=0, PAYLOAD-LEN=9, MASK=b4e8b52f, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               fragment1
003 TX OCTETS: 0189b4e8b52fd29ad448d98ddb5b85
004 TX FRAME : OPCODE=9, FIN=True, RSV=0, PAYLOAD-LEN=12, MASK=b0da2316, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               ping payload
005 TX OCTETS: 898cb0da2316c0b34d7190aa426fdcb54272
006 TX FRAME : OPCODE=0, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=57016277, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               fragment2
007 TX OCTETS: 808957016277317303103a640c0365
008 CLOSE CONNECTION AFTER 1.000000 sec
009 RX OCTETS: 8a0c70696e67207061796c6f61648112667261676d656e7431667261676d656e7432
010 RX FRAME : OPCODE=10, FIN=True, RSV=0, PAYLOAD-LEN=12, MASKED=False, MASK=None
               ping payload
011 RX FRAME : OPCODE=1, FIN=True, RSV=0, PAYLOAD-LEN=18, MASKED=False, MASK=None
               fragment1fragment2
012 TX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=2, MASK=85b8c36e, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               0x03e8
013 TX OCTETS: 888285b8c36e8650
014 TCP DROPPED BY PEER