Autobahn WebSocket Testsuite Report
Autobahn WebSocket

websock secure server - Case 5.16 : Pass - 1 ms @ 2026-08-25T04:35:50.368Z

Case Description

Repeated 2x: Continuation Frame with FIN = false (where there is nothing to continue), then text Message fragmented into 2 fragments.

Case Expectation

The connection is failed immediately, since there is no message to continue.

Case Outcome

Actual events match at least one expected.

Expected:
{'OK': []}

Observed:
[]

Case Closing Behavior

Connection was properly closed (OK)



Opening Handshake

GET /wss HTTP/1.1
User-Agent: AutobahnTestSuite/25.10.1-0.10.9
Host: 127.0.0.1:8889
Upgrade: WebSocket
Connection: Upgrade
Pragma: no-cache
Cache-Control: no-cache
Sec-WebSocket-Key: +McR2jDQMl5cTXRHHYx/Ng==
Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols
Date: Tue, 25 Aug 2026 04:35:50 GMT
Connection: Upgrade
Upgrade: websocket
Sec-Websocket-Accept: bLj4rbtEvN8WWf/0SDsR74Vn5SA=


Closing Behavior

KeyValueDescription
isServerFalseTrue, iff I (the fuzzer) am a server, and the peer is a client.
closedByMeFalseTrue, 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.
localCloseCodeNoneThe 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
1661166
Total1166

Octets Transmitted by Chop Size

Chop SizeCountOctets
15690
2451245
Total7335

Frames Received by Opcode

OpcodeCount
Total0

Frames Transmitted by Opcode

OpcodeCount
04
12
Total6


Wire Log

000 TX OCTETS: 474554202f77737320485454502f312e310d0a557365722d4167656e743a204175746f6261686e5465737453756974652f32
               352e31302e312d302e31302e390d ...
001 RX OCTETS: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a446174653a205475652c203235204175
               6720323032362030343a33353a35 ...
002 TX FRAME : OPCODE=0, FIN=False, RSV=0, PAYLOAD-LEN=9, MASK=cba7e680, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               fragment1
003 TX OCTETS: 0089cba7e680add587e7a6c288f4fa
004 TX FRAME : OPCODE=1, FIN=False, RSV=0, PAYLOAD-LEN=9, MASK=deafde42, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               fragment2
005 TX OCTETS: 0189deafde42b8ddbf25b3cab036ec
006 TX FRAME : OPCODE=0, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=8b34f890, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               fragment3
007 TX OCTETS: 80898b34f890ed4699f7e65196e4b8
008 TX FRAME : OPCODE=0, FIN=False, RSV=0, PAYLOAD-LEN=9, MASK=15c416fb, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               fragment1
009 TX OCTETS: 008915c416fb73b6779c78a1788f24
010 TX FRAME : OPCODE=1, FIN=False, RSV=0, PAYLOAD-LEN=9, MASK=670639a7, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               fragment2
011 TX OCTETS: 0189670639a7017458c00a6357d355
012 TX FRAME : OPCODE=0, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=18ba9e98, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               fragment3
013 TX OCTETS: 808918ba9e987ec8ffff75dff0ec2b
014 FAIL CONNECTION AFTER 1.000000 sec
015 TCP DROPPED BY PEER