websock server - Case 1.2.8 : Pass - 19 ms @ 2026-06-23T08:24:00.460Z
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: X8bXIEJX1KdlqONN9zWKDw== Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols Date: Tue, 23 Jun 2026 08:24:00 GMT Connection: Upgrade Upgrade: websocket Sec-Websocket-Accept: bnkBtQ0exSI1S51YQ+jUbOtWv8Y=
| 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: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a446174653a205475652c203233204a75
6e20323032362030383a32343a30 ...
002 TX FRAME : OPCODE=2, FIN=True, RSV=0, PAYLOAD-LEN=65536, MASK=dcad76d6, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=997, SYNC=False
0xfefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe
fefefefefefefefefefefefefefefe ...
003 TX OCTETS: 82ff0000000000010000dcad76d6225388282253882822538828225388282253882822538828225388282253882822538828
2253882822538828225388282253 ...
004 FAIL CONNECTION AFTER 10.000000 sec
005 TX OCTETS: 2822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822
5388282253882822538828225388 ...
006 TX OCTETS: 2253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253
8828225388282253882822538828 ...
007 TX OCTETS: 5388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388
2822538828225388282253882822 ...
008 TX OCTETS: 8828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828
2253882822538828225388282253 ...
009 TX OCTETS: 2822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822
5388282253882822538828225388 ...
010 TX OCTETS: 2253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253
8828225388282253882822538828 ...
011 TX OCTETS: 5388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388
2822538828225388282253882822 ...
012 TX OCTETS: 8828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828
2253882822538828225388282253 ...
013 TX OCTETS: 2822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822
5388282253882822538828225388 ...
014 TX OCTETS: 2253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253
8828225388282253882822538828 ...
015 TX OCTETS: 5388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388
2822538828225388282253882822 ...
016 TX OCTETS: 8828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828
2253882822538828225388282253 ...
017 TX OCTETS: 2822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822
5388282253882822538828225388 ...
018 TX OCTETS: 2253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253
8828225388282253882822538828 ...
019 TX OCTETS: 5388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388
2822538828225388282253882822 ...
020 TX OCTETS: 8828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828
2253882822538828225388282253 ...
021 TX OCTETS: 2822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822
5388282253882822538828225388 ...
022 TX OCTETS: 2253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253
8828225388282253882822538828 ...
023 TX OCTETS: 5388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388
2822538828225388282253882822 ...
024 TX OCTETS: 8828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828
2253882822538828225388282253 ...
025 TX OCTETS: 2822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822
5388282253882822538828225388 ...
026 TX OCTETS: 2253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253
8828225388282253882822538828 ...
027 TX OCTETS: 5388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388
2822538828225388282253882822 ...
028 TX OCTETS: 8828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828
2253882822538828225388282253 ...
029 TX OCTETS: 2822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822
5388282253882822538828225388 ...
030 TX OCTETS: 2253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253
8828225388282253882822538828 ...
031 TX OCTETS: 5388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388
2822538828225388282253882822 ...
032 TX OCTETS: 8828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828
2253882822538828225388282253 ...
033 TX OCTETS: 2822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822
5388282253882822538828225388 ...
034 TX OCTETS: 2253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253
8828225388282253882822538828 ...
035 TX OCTETS: 5388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388
2822538828225388282253882822 ...
036 TX OCTETS: 8828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828
2253882822538828225388282253 ...
037 TX OCTETS: 2822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822
5388282253882822538828225388 ...
038 TX OCTETS: 2253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253
8828225388282253882822538828 ...
039 TX OCTETS: 5388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388
2822538828225388282253882822 ...
040 TX OCTETS: 8828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828
2253882822538828225388282253 ...
041 TX OCTETS: 2822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822
5388282253882822538828225388 ...
042 TX OCTETS: 2253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253
8828225388282253882822538828 ...
043 TX OCTETS: 5388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388
2822538828225388282253882822 ...
044 TX OCTETS: 8828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828
2253882822538828225388282253 ...
045 TX OCTETS: 2822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822
5388282253882822538828225388 ...
046 TX OCTETS: 2253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253
8828225388282253882822538828 ...
047 TX OCTETS: 5388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388
2822538828225388282253882822 ...
048 TX OCTETS: 8828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828
2253882822538828225388282253 ...
049 TX OCTETS: 2822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822
5388282253882822538828225388 ...
050 TX OCTETS: 2253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253
8828225388282253882822538828 ...
051 TX OCTETS: 5388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388
2822538828225388282253882822 ...
052 TX OCTETS: 8828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828
2253882822538828225388282253 ...
053 TX OCTETS: 2822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822
5388282253882822538828225388 ...
054 TX OCTETS: 2253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253
8828225388282253882822538828 ...
055 TX OCTETS: 5388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388
2822538828225388282253882822 ...
056 TX OCTETS: 8828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828
2253882822538828225388282253 ...
057 TX OCTETS: 2822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822
5388282253882822538828225388 ...
058 TX OCTETS: 2253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253
8828225388282253882822538828 ...
059 TX OCTETS: 5388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388
2822538828225388282253882822 ...
060 TX OCTETS: 8828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828
2253882822538828225388282253 ...
061 TX OCTETS: 2822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822
5388282253882822538828225388 ...
062 TX OCTETS: 2253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253
8828225388282253882822538828 ...
063 TX OCTETS: 5388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388
2822538828225388282253882822 ...
064 TX OCTETS: 8828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828
2253882822538828225388282253 ...
065 TX OCTETS: 2822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822
5388282253882822538828225388 ...
066 TX OCTETS: 2253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253
8828225388282253882822538828 ...
067 TX OCTETS: 5388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828225388
2822538828225388282253882822 ...
068 TX OCTETS: 8828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822538828
2253882822538828225388282253 ...
069 TX OCTETS: 2822538828225388282253882822538828225388282253882822538828225388282253882822538828225388282253882822
5388282253882822538828225388 ...
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=d24a2c45, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
0x03e8
074 TX OCTETS: 8882d24a2c45d1a2
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