websock server - Case 5.17 : Pass - 1 ms @ 2026-03-07T18:26:05.267Z
Case Description
Repeated 2x: Continuation Frame with FIN = true (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)
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: F1cnswT1f5Fj4iS43bU9pA== Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols Date: Sat, 07 Mar 2026 18:26:05 GMT Connection: Upgrade Upgrade: websocket Sec-Websocket-Accept: VYsRbNXaJHfbdjklzfec7OMbcOk=
| Key | Value | Description |
| isServer | False | True, iff I (the fuzzer) am a server, and the peer is a client. |
| closedByMe | False | True, iff I have initiated closing handshake (that is, did send close first). |
| failedByMe | False | True, 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. |
| droppedByMe | False | True, iff I dropped the TCP connection. |
| wasClean | False | True, iff full WebSocket closing handshake was performed (close frame sent and received) _and_ the server dropped the TCP (which is its responsibility). |
| wasNotCleanReason | peer dropped the TCP connection without previous WebSocket closing handshake | When wasClean == False, the reason what happened. |
| wasServerConnectionDropTimeout | False | When we are a client, and we expected the server to drop the TCP, but that didn't happen in time, this gets True. |
| wasOpenHandshakeTimeout | False | When performing the opening handshake, but the peer did not finish in time, this gets True. |
| wasCloseHandshakeTimeout | False | When we initiated a closing handshake, but the peer did not respond in time, this gets True. |
| localCloseCode | None | The close code I sent in close frame (if any). |
| localCloseReason | None | The close reason I sent in close frame (if any). |
| remoteCloseCode | None | The close code the peer sent me in close frame (if any). |
| remoteCloseReason | None | The close reason the peer sent me in close frame (if any). |
| Chop Size | Count | Octets |
| 166 | 1 | 166 |
| Total | 1 | 166 |
| Chop Size | Count | Octets |
| 15 | 6 | 90 |
| 244 | 1 | 244 |
| Total | 7 | 334 |
| Opcode | Count |
| Total | 0 |
| Opcode | Count |
| 0 | 4 |
| 1 | 2 |
| Total | 6 |
000 TX OCTETS: 474554202f777320485454502f312e310d0a557365722d4167656e743a204175746f6261686e5465737453756974652f3235
2e31302e312d302e31302e390d0a ...
001 RX OCTETS: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a446174653a205361742c203037204d61
7220323032362031383a32363a30 ...
002 TX FRAME : OPCODE=0, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=6cf3a02a, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
fragment1
003 TX OCTETS: 80896cf3a02a0a81c14d0196ce5e5d
004 TX FRAME : OPCODE=1, FIN=False, RSV=0, PAYLOAD-LEN=9, MASK=f95edc48, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
fragment2
005 TX OCTETS: 0189f95edc489f2cbd2f943bb23ccb
006 TX FRAME : OPCODE=0, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=18884c70, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
fragment3
007 TX OCTETS: 808918884c707efa2d1775ed22042b
008 TX FRAME : OPCODE=0, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=ab729bc5, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
fragment1
009 TX OCTETS: 8089ab729bc5cd00faa2c617f5b19a
010 TX FRAME : OPCODE=1, FIN=False, RSV=0, PAYLOAD-LEN=9, MASK=1d663b83, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
fragment2
011 TX OCTETS: 01891d663b837b145ae4700355f72f
012 TX FRAME : OPCODE=0, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=164cfb72, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
fragment3
013 TX OCTETS: 8089164cfb72703e9a157b29950625
014 FAIL CONNECTION AFTER 1.000000 sec
015 TCP DROPPED BY PEER