websock server - Case 5.4 : Pass - 1 ms @ 2025-11-26T12:31:44.841Z
Case Description
Send text Message fragmented into 2 fragments, octets are sent in frame-wise chops.
Case Expectation
Message is processed and echo'ed back to us.
Case Outcome
Actual events match at least one expected.
Expected:
{'OK': [('message', u'fragment1fragment2', False)]}
Observed:
[('message', u'fragment1fragment2', False)]
Case Closing Behavior
The spec requires the connection to be failed cleanly here (UNCLEAN)
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: KCglMN374ZvpfFeBOOqC7Q== Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols Date: Wed, 26 Nov 2025 12:31:44 GMT Upgrade: websocket Connection: Upgrade Sec-Websocket-Accept: Vc1lAo/WD0e9t+9xUMyXlFkN+8M=
| Key | Value | Description |
| isServer | False | True, iff I (the fuzzer) am a server, and the peer is a client. |
| closedByMe | True | 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 | 1000 | 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 |
| 20 | 1 | 20 |
| 166 | 1 | 166 |
| Total | 2 | 186 |
| Chop Size | Count | Octets |
| 8 | 1 | 8 |
| 15 | 2 | 30 |
| 244 | 1 | 244 |
| Total | 4 | 282 |
| Opcode | Count |
| 1 | 1 |
| Total | 1 |
| Opcode | Count |
| 0 | 1 |
| 1 | 1 |
| 8 | 1 |
| Total | 3 |
000 TX OCTETS: 474554202f777320485454502f312e310d0a557365722d4167656e743a204175746f6261686e5465737453756974652f3235
2e31302e312d302e31302e390d0a ...
001 RX OCTETS: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a446174653a205765642c203236204e6f
7620323032352031323a33313a34 ...
002 TX FRAME : OPCODE=1, FIN=False, RSV=0, PAYLOAD-LEN=9, MASK=efc0d56e, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=True
fragment1
003 TX OCTETS: 0189efc0d56e89b2b40982a5bb1ade
004 TX FRAME : OPCODE=0, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=89d152c1, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=True
fragment2
005 CLOSE CONNECTION AFTER 1.000000 sec
006 TX OCTETS: 808989d152c1efa333a6e4b43cb5bb
007 RX OCTETS: 8112667261676d656e7431667261676d656e7432
008 RX FRAME : OPCODE=1, FIN=True, RSV=0, PAYLOAD-LEN=18, MASKED=False, MASK=None
fragment1fragment2
009 TX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=2, MASK=37895410, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
0x03e8
010 TX OCTETS: 8882378954103461
011 TCP DROPPED BY PEER