tokio-websockets - Case 5.8 : Pass - 8 ms @ 2026-03-17T09:50:05.461Z
Case Description
Send text Message fragmented into 2 fragments, one ping with payload in-between. Octets are sent in octet-wise chops.
Case Expectation
A pong is received, then the message is echo'ed back to us.
Case Outcome
Actual events match at least one expected.
Expected:
{'OK': [('pong', u'ping payload'), ('message', u'fragment1fragment2', False)]}
Observed:
[('pong', u'ping payload'), ('message', u'fragment1fragment2', False)]
Case Closing Behavior
Connection was properly closed (OK)
GET / HTTP/1.1 User-Agent: AutobahnTestSuite/25.10.1-0.10.9 Host: 127.0.0.1:9006 Upgrade: WebSocket Connection: Upgrade Pragma: no-cache Cache-Control: no-cache Sec-WebSocket-Key: Bp2lhvC0NtoxoawoS3I15A== Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols Upgrade: websocket Connection: Upgrade Sec-WebSocket-Accept: 5N8IuB175cVVvNa+u3+QBMRMO54=
| 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 | True | True, iff full WebSocket closing handshake was performed (close frame sent and received) _and_ the server dropped the TCP (which is its responsibility). |
| wasNotCleanReason | None | 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 | 1000 | 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 |
| 4 | 1 | 4 |
| 14 | 1 | 14 |
| 20 | 1 | 20 |
| 129 | 1 | 129 |
| Total | 4 | 167 |
| Chop Size | Count | Octets |
| 1 | 48 | 48 |
| 8 | 1 | 8 |
| 242 | 1 | 242 |
| Total | 50 | 298 |
| Opcode | Count |
| 1 | 1 |
| 8 | 1 |
| 10 | 1 |
| Total | 3 |
| Opcode | Count |
| 0 | 1 |
| 1 | 1 |
| 8 | 1 |
| 9 | 1 |
| Total | 4 |
000 TX OCTETS: 474554202f20485454502f312e310d0a557365722d4167656e743a204175746f6261686e5465737453756974652f32352e31
302e312d302e31302e390d0a486f ...
001 RX OCTETS: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a557067726164653a20776562736f636b
65740d0a436f6e6e656374696f6e ...
002 TX FRAME : OPCODE=1, FIN=False, RSV=0, PAYLOAD-LEN=9, MASK=1b9f7804, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=1, SYNC=False
fragment1
003 TX OCTETS: 01
004 TX FRAME : OPCODE=9, FIN=True, RSV=0, PAYLOAD-LEN=12, MASK=9edef7c2, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=1, SYNC=False
ping payload
005 TX FRAME : OPCODE=0, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=55d29483, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=1, SYNC=False
fragment2
006 CLOSE CONNECTION AFTER 1.000000 sec
007 TX OCTETS: 89
008 TX OCTETS: 1b
009 TX OCTETS: 9f
010 TX OCTETS: 78
011 TX OCTETS: 04
012 TX OCTETS: 7d
013 TX OCTETS: ed
014 TX OCTETS: 19
015 TX OCTETS: 63
016 TX OCTETS: 76
017 TX OCTETS: fa
018 TX OCTETS: 16
019 TX OCTETS: 70
020 TX OCTETS: 2a
021 TX OCTETS: 89
022 TX OCTETS: 8c
023 TX OCTETS: 9e
024 TX OCTETS: de
025 TX OCTETS: f7
026 TX OCTETS: c2
027 TX OCTETS: ee
028 TX OCTETS: b7
029 TX OCTETS: 99
030 TX OCTETS: a5
031 TX OCTETS: be
032 TX OCTETS: ae
033 TX OCTETS: 96
034 TX OCTETS: bb
035 TX OCTETS: f2
036 TX OCTETS: b1
037 TX OCTETS: 96
038 TX OCTETS: a6
039 TX OCTETS: 80
040 RX OCTETS: 8a0c70696e67207061796c6f6164
041 RX FRAME : OPCODE=10, FIN=True, RSV=0, PAYLOAD-LEN=12, MASKED=False, MASK=None
ping payload
042 TX OCTETS: 89
043 TX OCTETS: 55
044 TX OCTETS: d2
045 TX OCTETS: 94
046 TX OCTETS: 83
047 TX OCTETS: 33
048 TX OCTETS: a0
049 TX OCTETS: f5
050 TX OCTETS: e4
051 TX OCTETS: 38
052 TX OCTETS: b7
053 TX OCTETS: fa
054 TX OCTETS: f7
055 TX OCTETS: 67
056 RX OCTETS: 8112667261676d656e7431667261676d656e7432
057 RX FRAME : OPCODE=1, FIN=True, RSV=0, PAYLOAD-LEN=18, MASKED=False, MASK=None
fragment1fragment2
058 TX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=2, MASK=6f917b24, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
0x03e8
059 TX OCTETS: 88826f917b246c79
060 RX OCTETS: 880203e8
061 RX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=2, MASKED=False, MASK=None
0x03e8
062 TCP DROPPED BY PEER