Autobahn WebSocket Testsuite Report
Autobahn WebSocket

websock server - Case 6.4.2 : Non-Strict - 2002 ms @ 2025-09-19T08:56:25.144Z

Case Description

Same as Case 6.4.1, but in 2nd frame, we send only up to and including the octet making the complete payload invalid.

MESSAGE PARTS:
PART1 = cebae1bdb9cf83cebcceb5f4
PART2 = 90
PART3 = 8080656469746564

Case Expectation

The first frame is accepted, we expect to timeout on the first wait. The 2nd frame should be rejected immediately (fail fast on UTF-8). If we timeout, we expect the connection is failed at least then, since the complete message payload is not valid UTF-8.

Case Outcome

Actual events match at least one expected.

Expected:
{'OK': [('timeout', 'A')], 'NON-STRICT': [('timeout', 'A'), ('timeout', 'B')]}

Observed:
[('timeout', 'A'), ('timeout', 'B')]

Case Closing Behavior

Connection was properly closed (OK)



Opening Handshake

GET /ws HTTP/1.1
User-Agent: AutobahnTestSuite/0.8.2-0.10.9
Host: 127.0.0.1:8888
Upgrade: WebSocket
Connection: Upgrade
Pragma: no-cache
Cache-Control: no-cache
Sec-WebSocket-Key: +lzV+uyRLWojhqOLfZP9nA==
Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols
Date: Fri, 19 Sep 2025 08:56:25 GMT
Connection: Upgrade
Upgrade: websocket
Sec-Websocket-Accept: QUesZaYJ0q4JgpS3it/Ok80tA1c=


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
717
14114
18118
2421242
Total4281

Frames Received by Opcode

OpcodeCount
Total0

Frames Transmitted by Opcode

OpcodeCount
02
11
Total3


Wire Log

000 TX OCTETS: 474554202f777320485454502f312e310d0a557365722d4167656e743a204175746f6261686e5465737453756974652f302e
               382e322d302e31302e390d0a486f ...
001 RX OCTETS: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a446174653a204672692c203139205365
               7020323032352030383a35363a32 ...
002 TX FRAME : OPCODE=1, FIN=False, RSV=0, PAYLOAD-LEN=12, MASK=a595a003, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               0xcebae1bdb9cf83cebcceb5f4
003 TX OCTETS: 018ca595a0036b2f41be1c5a23cd195b15f7
004 DELAY 1.000000 sec for TAG A
005 DELAY TIMEOUT on TAG A
006 TX FRAME : OPCODE=0, FIN=False, RSV=0, PAYLOAD-LEN=1, MASK=d6f19377, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               0x90
007 TX OCTETS: 0081d6f1937746
008 DELAY 1.000000 sec for TAG B
009 DELAY TIMEOUT on TAG B
010 TX FRAME : OPCODE=0, FIN=True, RSV=0, PAYLOAD-LEN=8, MASK=251a7544, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               0x8080656469746564
011 TX OCTETS: 8088251a7544a59a10204c6e1020
012 FAIL CONNECTION AFTER 1.000000 sec
013 TCP DROPPED BY PEER