Autobahn WebSocket Testsuite Report
Autobahn WebSocket

collie - Case 7.1.6 : Informational - 13 ms @ 2026-06-11T06:38:22.307Z

Case Description

Send 256K message followed by close then a ping

Case Expectation

Case outcome depends on implementation defined close behavior. Message and close frame are sent back to back. If the close frame is processed before the text message write is complete (as can happen in asynchronous processing models) the close frame is processed first and the text message may not be received or may only be partially received.

Case Outcome

Actual events differ from any expected.

Expected:
{'OK': [('message', u'Hello World!', False)], 'NON-STRICT': []}

Observed:
[('message', u'BAsd7&jh23BAsd7&jh23BAsd7&jh23BAsd7&jh23BAsd7&jh23BAsd7&jh23BAsd ...', False), ('message', u'Hello World!', False)]

Case Closing Behavior

Connection was properly closed (INFORMATIONAL)



Opening Handshake

GET /runCase?case=215&agent=collie HTTP/1.1
host: 127.0.0.1:9001
connection: upgrade
upgrade: websocket
sec-websocket-key: LOeWdMoEKfN/nR7nv9RUbg==
sec-websocket-version: 13
sec-websocket-extensions: permessage-deflate; client_max_window_bits
HTTP/1.1 101 Switching Protocols
Server: AutobahnTestSuite/25.10.1-0.10.9
X-Powered-By: AutobahnPython/0.10.9
Upgrade: WebSocket
Connection: Upgrade
Sec-WebSocket-Accept: gufKe6DBMNsI4B1XYh4Jp78+ETI=


Closing Behavior

KeyValueDescription
isServerTrueTrue, 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.
droppedByMeTrueTrue, iff I dropped the TCP connection.
wasCleanTrueTrue, iff full WebSocket closing handshake was performed (close frame sent and received) _and_ the server dropped the TCP (which is its responsibility).
wasNotCleanReasonNoneWhen 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).
remoteCloseCode1000The 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
2521252
618416184
29696259392
655363196608
Total7262436

Octets Transmitted by Chop Size

Chop SizeCountOctets
212
414
14114
2081208
2621541262154
Total5262382

Frames Received by Opcode

OpcodeCount
12
81
Total3

Frames Transmitted by Opcode

OpcodeCount
12
81
91
Total4


Wire Log

000 RX OCTETS: 474554202f72756e436173653f636173653d323135266167656e743d636f6c6c696520485454502f312e310d0a686f73743a
               203132372e302e302e313a393030 ...
001 TX OCTETS: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a5365727665723a204175746f6261686e
               5465737453756974652f32352e31 ...
002 TX FRAME : OPCODE=1, FIN=True, RSV=0, PAYLOAD-LEN=10, MASK=None, PAYLOAD-REPEAT-LEN=262144, CHOPSIZE=None, SYNC=False
               BAsd7&jh23
003 TX OCTETS: 817f00000000000400004241736437266a6832334241736437266a6832334241736437266a6832334241736437266a683233
               4241736437266a68323342417364 ...
004 TX FRAME : OPCODE=1, FIN=True, RSV=0, PAYLOAD-LEN=12, MASK=None, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               Hello World!
005 TX OCTETS: 810c48656c6c6f20576f726c6421
006 TX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=2, MASK=None, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               0x03e8
007 TX OCTETS: 880203e8
008 TX FRAME : OPCODE=9, FIN=True, RSV=0, PAYLOAD-LEN=0, MASK=None, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
009 TX OCTETS: 8900
010 FAIL CONNECTION AFTER 1.000000 sec
011 RX OCTETS: 81ff0000000000040000d4fb068b96ba75efe3dd6ce3e6c844caa79f31adbe9334b896ba75efe3dd6ce3e6c844caa79f31ad
               be9334b896ba75efe3dd6ce3e6c8 ...
012 RX OCTETS: 75efe3dd6ce3e6c844caa79f31adbe9334b896ba75efe3dd6ce3e6c844caa79f31adbe9334b896ba75efe3dd6ce3e6c844ca
               a79f31adbe9334b896ba75efe3dd ...
013 RX OCTETS: 34b896ba75efe3dd6ce3e6c844caa79f31adbe9334b896ba75efe3dd6ce3e6c844caa79f31adbe9334b896ba75efe3dd6ce3
               e6c844caa79f31adbe9334b896ba ...
014 RX OCTETS: 31adbe9334b896ba75efe3dd6ce3e6c844caa79f31adbe9334b896ba75efe3dd6ce3e6c844caa79f31adbe9334b896ba75ef
               e3dd6ce3e6c844caa79f31adbe93 ...
015 RX OCTETS: 44caa79f31adbe9334b896ba75efe3dd6ce3e6c844caa79f31adbe9334b896ba75efe3dd6ce3e6c844caa79f31adbe9334b8
               96ba75efe3dd6ce3e6c844caa79f ...
016 RX OCTETS: 6ce3e6c844caa79f31adbe9334b896ba75efe3dd6ce3e6c844caa79f31adbe9334b896ba75efe3dd6ce3e6c844caa79f31ad
               be9334b896ba75efe3dd6ce3e6c8 ...
017 RX FRAME : OPCODE=1, FIN=True, RSV=0, PAYLOAD-LEN=262144, MASKED=True, MASK=6434666230363862
               BAsd7&jh23BAsd7&jh23BAsd7&jh23BAsd7&jh23BAsd7&jh23BAsd7&jh23BAsd ...
018 RX FRAME : OPCODE=1, FIN=True, RSV=0, PAYLOAD-LEN=12, MASKED=True, MASK=3634616534353631
               Hello World!
019 RX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=2, MASKED=True, MASK=6438303439346261
               0x03e8
020 TCP DROPPED BY ME