websock server - Case 1.2.8 : Pass - 21 ms @ 2026-08-25T04:38:50.110Z
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: AalQCxXewHUMp0VhUKB/oQ== Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols Date: Tue, 25 Aug 2026 04:38:50 GMT Connection: Upgrade Upgrade: websocket Sec-Websocket-Accept: enEYAfhPyVFp4mrz22k8yuEnv3M=
| 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
6720323032362030343a33383a35 ...
002 TX FRAME : OPCODE=2, FIN=True, RSV=0, PAYLOAD-LEN=65536, MASK=e3bf6e74, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=997, SYNC=False
0xfefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe
fefefefefefefefefefefefefefefe ...
003 TX OCTETS: 82ff0000000000010000e3bf6e741d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a
1d41908a1d41908a1d41908a1d41 ...
004 FAIL CONNECTION AFTER 10.000000 sec
005 TX OCTETS: 8a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d
41908a1d41908a1d41908a1d4190 ...
006 TX OCTETS: 1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41
908a1d41908a1d41908a1d41908a ...
007 TX OCTETS: 41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d4190
8a1d41908a1d41908a1d41908a1d ...
008 TX OCTETS: 908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a
1d41908a1d41908a1d41908a1d41 ...
009 TX OCTETS: 8a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d
41908a1d41908a1d41908a1d4190 ...
010 TX OCTETS: 1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41
908a1d41908a1d41908a1d41908a ...
011 TX OCTETS: 41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d4190
8a1d41908a1d41908a1d41908a1d ...
012 TX OCTETS: 908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a
1d41908a1d41908a1d41908a1d41 ...
013 TX OCTETS: 8a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d
41908a1d41908a1d41908a1d4190 ...
014 TX OCTETS: 1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41
908a1d41908a1d41908a1d41908a ...
015 TX OCTETS: 41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d4190
8a1d41908a1d41908a1d41908a1d ...
016 TX OCTETS: 908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a
1d41908a1d41908a1d41908a1d41 ...
017 TX OCTETS: 8a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d
41908a1d41908a1d41908a1d4190 ...
018 TX OCTETS: 1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41
908a1d41908a1d41908a1d41908a ...
019 TX OCTETS: 41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d4190
8a1d41908a1d41908a1d41908a1d ...
020 TX OCTETS: 908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a
1d41908a1d41908a1d41908a1d41 ...
021 TX OCTETS: 8a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d
41908a1d41908a1d41908a1d4190 ...
022 TX OCTETS: 1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41
908a1d41908a1d41908a1d41908a ...
023 TX OCTETS: 41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d4190
8a1d41908a1d41908a1d41908a1d ...
024 TX OCTETS: 908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a
1d41908a1d41908a1d41908a1d41 ...
025 TX OCTETS: 8a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d
41908a1d41908a1d41908a1d4190 ...
026 TX OCTETS: 1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41
908a1d41908a1d41908a1d41908a ...
027 TX OCTETS: 41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d4190
8a1d41908a1d41908a1d41908a1d ...
028 TX OCTETS: 908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a
1d41908a1d41908a1d41908a1d41 ...
029 TX OCTETS: 8a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d
41908a1d41908a1d41908a1d4190 ...
030 TX OCTETS: 1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41
908a1d41908a1d41908a1d41908a ...
031 TX OCTETS: 41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d4190
8a1d41908a1d41908a1d41908a1d ...
032 TX OCTETS: 908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a
1d41908a1d41908a1d41908a1d41 ...
033 TX OCTETS: 8a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d
41908a1d41908a1d41908a1d4190 ...
034 TX OCTETS: 1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41
908a1d41908a1d41908a1d41908a ...
035 TX OCTETS: 41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d4190
8a1d41908a1d41908a1d41908a1d ...
036 TX OCTETS: 908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a
1d41908a1d41908a1d41908a1d41 ...
037 TX OCTETS: 8a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d
41908a1d41908a1d41908a1d4190 ...
038 TX OCTETS: 1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41
908a1d41908a1d41908a1d41908a ...
039 TX OCTETS: 41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d4190
8a1d41908a1d41908a1d41908a1d ...
040 TX OCTETS: 908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a
1d41908a1d41908a1d41908a1d41 ...
041 TX OCTETS: 8a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d
41908a1d41908a1d41908a1d4190 ...
042 TX OCTETS: 1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41
908a1d41908a1d41908a1d41908a ...
043 TX OCTETS: 41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d4190
8a1d41908a1d41908a1d41908a1d ...
044 TX OCTETS: 908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a
1d41908a1d41908a1d41908a1d41 ...
045 TX OCTETS: 8a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d
41908a1d41908a1d41908a1d4190 ...
046 TX OCTETS: 1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41
908a1d41908a1d41908a1d41908a ...
047 TX OCTETS: 41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d4190
8a1d41908a1d41908a1d41908a1d ...
048 TX OCTETS: 908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a
1d41908a1d41908a1d41908a1d41 ...
049 TX OCTETS: 8a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d
41908a1d41908a1d41908a1d4190 ...
050 TX OCTETS: 1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41
908a1d41908a1d41908a1d41908a ...
051 TX OCTETS: 41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d4190
8a1d41908a1d41908a1d41908a1d ...
052 TX OCTETS: 908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a
1d41908a1d41908a1d41908a1d41 ...
053 TX OCTETS: 8a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d
41908a1d41908a1d41908a1d4190 ...
054 TX OCTETS: 1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41
908a1d41908a1d41908a1d41908a ...
055 TX OCTETS: 41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d4190
8a1d41908a1d41908a1d41908a1d ...
056 TX OCTETS: 908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a
1d41908a1d41908a1d41908a1d41 ...
057 TX OCTETS: 8a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d
41908a1d41908a1d41908a1d4190 ...
058 TX OCTETS: 1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41
908a1d41908a1d41908a1d41908a ...
059 TX OCTETS: 41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d4190
8a1d41908a1d41908a1d41908a1d ...
060 TX OCTETS: 908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a
1d41908a1d41908a1d41908a1d41 ...
061 TX OCTETS: 8a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d
41908a1d41908a1d41908a1d4190 ...
062 TX OCTETS: 1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41
908a1d41908a1d41908a1d41908a ...
063 TX OCTETS: 41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d4190
8a1d41908a1d41908a1d41908a1d ...
064 TX OCTETS: 908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a
1d41908a1d41908a1d41908a1d41 ...
065 TX OCTETS: 8a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d
41908a1d41908a1d41908a1d4190 ...
066 TX OCTETS: 1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41
908a1d41908a1d41908a1d41908a ...
067 TX OCTETS: 41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d4190
8a1d41908a1d41908a1d41908a1d ...
068 TX OCTETS: 908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a
1d41908a1d41908a1d41908a1d41 ...
069 TX OCTETS: 8a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d41908a1d
41908a1d41908a1d41908a1d4190 ...
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=0f78be4b, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
0x03e8
074 TX OCTETS: 88820f78be4b0c90
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