websock server - Case 1.2.8 : Pass - 15 ms @ 2026-08-25T04:35:21.044Z
Case Description
Send binary message message with payload of length 65536. Sent out data in chops of 997 octets.
Case Expectation
Receive echo'ed binary message (with payload as sent). Clean close with normal code.
Case Outcome
Actual events match at least one expected.
Expected:
{'OK': [('message', '0xfefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe ...', True)]}
Observed:
[('message', '0xfefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe ...', True)]
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: IU0CKP7wRNs6E347UrQUvA== Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols Date: Tue, 25 Aug 2026 04:35:21 GMT Upgrade: websocket Connection: Upgrade Sec-Websocket-Accept: AhHb9rCCk3Fa8tKiFw9u5iXU+YM=
| 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 |
| 10 | 1 | 10 |
| 166 | 1 | 166 |
| 65536 | 1 | 65536 |
| Total | 4 | 65716 |
| Chop Size | Count | Octets |
| 8 | 1 | 8 |
| 244 | 1 | 244 |
| 745 | 1 | 745 |
| 997 | 65 | 64805 |
| Total | 68 | 65802 |
| Opcode | Count |
| 2 | 1 |
| 8 | 1 |
| Total | 2 |
| Opcode | Count |
| 2 | 1 |
| 8 | 1 |
| Total | 2 |
000 TX OCTETS: 474554202f777320485454502f312e310d0a557365722d4167656e743a204175746f6261686e5465737453756974652f3235
2e31302e312d302e31302e390d0a ...
001 RX OCTETS: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a446174653a205475652c203235204175
6720323032362030343a33353a32 ...
002 TX FRAME : OPCODE=2, FIN=True, RSV=0, PAYLOAD-LEN=65536, MASK=f05257b2, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=997, SYNC=False
0xfefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe
fefefefefefefefefefefefefefefe ...
003 TX OCTETS: 82ff0000000000010000f05257b20eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c
0eaca94c0eaca94c0eaca94c0eac ...
004 FAIL CONNECTION AFTER 10.000000 sec
005 TX OCTETS: 4c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0e
aca94c0eaca94c0eaca94c0eaca9 ...
006 TX OCTETS: 0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eac
a94c0eaca94c0eaca94c0eaca94c ...
007 TX OCTETS: aca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca9
4c0eaca94c0eaca94c0eaca94c0e ...
008 TX OCTETS: a94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c
0eaca94c0eaca94c0eaca94c0eac ...
009 TX OCTETS: 4c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0e
aca94c0eaca94c0eaca94c0eaca9 ...
010 TX OCTETS: 0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eac
a94c0eaca94c0eaca94c0eaca94c ...
011 TX OCTETS: aca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca9
4c0eaca94c0eaca94c0eaca94c0e ...
012 TX OCTETS: a94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c
0eaca94c0eaca94c0eaca94c0eac ...
013 TX OCTETS: 4c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0e
aca94c0eaca94c0eaca94c0eaca9 ...
014 TX OCTETS: 0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eac
a94c0eaca94c0eaca94c0eaca94c ...
015 TX OCTETS: aca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca9
4c0eaca94c0eaca94c0eaca94c0e ...
016 TX OCTETS: a94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c
0eaca94c0eaca94c0eaca94c0eac ...
017 TX OCTETS: 4c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0e
aca94c0eaca94c0eaca94c0eaca9 ...
018 TX OCTETS: 0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eac
a94c0eaca94c0eaca94c0eaca94c ...
019 TX OCTETS: aca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca9
4c0eaca94c0eaca94c0eaca94c0e ...
020 TX OCTETS: a94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c
0eaca94c0eaca94c0eaca94c0eac ...
021 TX OCTETS: 4c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0e
aca94c0eaca94c0eaca94c0eaca9 ...
022 TX OCTETS: 0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eac
a94c0eaca94c0eaca94c0eaca94c ...
023 TX OCTETS: aca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca9
4c0eaca94c0eaca94c0eaca94c0e ...
024 TX OCTETS: a94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c
0eaca94c0eaca94c0eaca94c0eac ...
025 TX OCTETS: 4c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0e
aca94c0eaca94c0eaca94c0eaca9 ...
026 TX OCTETS: 0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eac
a94c0eaca94c0eaca94c0eaca94c ...
027 TX OCTETS: aca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca9
4c0eaca94c0eaca94c0eaca94c0e ...
028 TX OCTETS: a94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c
0eaca94c0eaca94c0eaca94c0eac ...
029 TX OCTETS: 4c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0e
aca94c0eaca94c0eaca94c0eaca9 ...
030 TX OCTETS: 0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eac
a94c0eaca94c0eaca94c0eaca94c ...
031 TX OCTETS: aca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca9
4c0eaca94c0eaca94c0eaca94c0e ...
032 TX OCTETS: a94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c
0eaca94c0eaca94c0eaca94c0eac ...
033 TX OCTETS: 4c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0e
aca94c0eaca94c0eaca94c0eaca9 ...
034 TX OCTETS: 0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eac
a94c0eaca94c0eaca94c0eaca94c ...
035 TX OCTETS: aca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca9
4c0eaca94c0eaca94c0eaca94c0e ...
036 TX OCTETS: a94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c
0eaca94c0eaca94c0eaca94c0eac ...
037 TX OCTETS: 4c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0e
aca94c0eaca94c0eaca94c0eaca9 ...
038 TX OCTETS: 0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eac
a94c0eaca94c0eaca94c0eaca94c ...
039 TX OCTETS: aca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca9
4c0eaca94c0eaca94c0eaca94c0e ...
040 TX OCTETS: a94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c
0eaca94c0eaca94c0eaca94c0eac ...
041 TX OCTETS: 4c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0e
aca94c0eaca94c0eaca94c0eaca9 ...
042 TX OCTETS: 0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eac
a94c0eaca94c0eaca94c0eaca94c ...
043 TX OCTETS: aca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca9
4c0eaca94c0eaca94c0eaca94c0e ...
044 TX OCTETS: a94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c
0eaca94c0eaca94c0eaca94c0eac ...
045 TX OCTETS: 4c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0e
aca94c0eaca94c0eaca94c0eaca9 ...
046 TX OCTETS: 0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eac
a94c0eaca94c0eaca94c0eaca94c ...
047 TX OCTETS: aca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca9
4c0eaca94c0eaca94c0eaca94c0e ...
048 TX OCTETS: a94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c
0eaca94c0eaca94c0eaca94c0eac ...
049 TX OCTETS: 4c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0e
aca94c0eaca94c0eaca94c0eaca9 ...
050 TX OCTETS: 0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eac
a94c0eaca94c0eaca94c0eaca94c ...
051 TX OCTETS: aca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca9
4c0eaca94c0eaca94c0eaca94c0e ...
052 TX OCTETS: a94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c
0eaca94c0eaca94c0eaca94c0eac ...
053 TX OCTETS: 4c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0e
aca94c0eaca94c0eaca94c0eaca9 ...
054 TX OCTETS: 0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eac
a94c0eaca94c0eaca94c0eaca94c ...
055 TX OCTETS: aca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca9
4c0eaca94c0eaca94c0eaca94c0e ...
056 TX OCTETS: a94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c
0eaca94c0eaca94c0eaca94c0eac ...
057 TX OCTETS: 4c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0e
aca94c0eaca94c0eaca94c0eaca9 ...
058 TX OCTETS: 0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eac
a94c0eaca94c0eaca94c0eaca94c ...
059 TX OCTETS: aca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca9
4c0eaca94c0eaca94c0eaca94c0e ...
060 TX OCTETS: a94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c
0eaca94c0eaca94c0eaca94c0eac ...
061 TX OCTETS: 4c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0e
aca94c0eaca94c0eaca94c0eaca9 ...
062 TX OCTETS: 0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eac
a94c0eaca94c0eaca94c0eaca94c ...
063 TX OCTETS: aca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca9
4c0eaca94c0eaca94c0eaca94c0e ...
064 TX OCTETS: a94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c
0eaca94c0eaca94c0eaca94c0eac ...
065 TX OCTETS: 4c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0e
aca94c0eaca94c0eaca94c0eaca9 ...
066 TX OCTETS: 0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eac
a94c0eaca94c0eaca94c0eaca94c ...
067 TX OCTETS: aca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca9
4c0eaca94c0eaca94c0eaca94c0e ...
068 TX OCTETS: a94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c
0eaca94c0eaca94c0eaca94c0eac ...
069 TX OCTETS: 4c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0eaca94c0e
aca94c0eaca94c0eaca94c0eaca9 ...
070 RX OCTETS: 827f0000000000010000fefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe
fefefefefefefefefefefefefefe ...
071 RX OCTETS: fefefefefefefefefefe
072 RX FRAME : OPCODE=2, FIN=True, RSV=0, PAYLOAD-LEN=65536, MASKED=False, MASK=None
0xfefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe
fefefefefefefefefefefefefefefe ...
073 TX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=2, MASK=8338d337, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
0x03e8
074 TX OCTETS: 88828338d33780d0
075 RX OCTETS: 880203e8
076 RX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=2, MASKED=False, MASK=None
0x03e8
077 TCP DROPPED BY PEER