websock server - Case 1.2.8 : Pass - 22 ms @ 2026-05-07T18:09:43.087Z
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: g7iKp1Q5DGdUKex4Hulkyw== Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols Date: Thu, 07 May 2026 18:09:43 GMT Connection: Upgrade Upgrade: websocket Sec-Websocket-Accept: b8xv26tEbSMhD0LqkwG+QcRGGuU=
| 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: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a446174653a205468752c203037204d61
7920323032362031383a30393a34 ...
002 TX FRAME : OPCODE=2, FIN=True, RSV=0, PAYLOAD-LEN=65536, MASK=d7178cc7, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=997, SYNC=False
0xfefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe
fefefefefefefefefefefefefefefe ...
003 TX OCTETS: 82ff0000000000010000d7178cc729e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e97239
29e9723929e9723929e9723929e9 ...
004 FAIL CONNECTION AFTER 10.000000 sec
005 TX OCTETS: 3929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929
e9723929e9723929e9723929e972 ...
006 TX OCTETS: 29e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9
723929e9723929e9723929e97239 ...
007 TX OCTETS: e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e972
3929e9723929e9723929e9723929 ...
008 TX OCTETS: 723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e97239
29e9723929e9723929e9723929e9 ...
009 TX OCTETS: 3929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929
e9723929e9723929e9723929e972 ...
010 TX OCTETS: 29e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9
723929e9723929e9723929e97239 ...
011 TX OCTETS: e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e972
3929e9723929e9723929e9723929 ...
012 TX OCTETS: 723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e97239
29e9723929e9723929e9723929e9 ...
013 TX OCTETS: 3929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929
e9723929e9723929e9723929e972 ...
014 TX OCTETS: 29e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9
723929e9723929e9723929e97239 ...
015 TX OCTETS: e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e972
3929e9723929e9723929e9723929 ...
016 TX OCTETS: 723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e97239
29e9723929e9723929e9723929e9 ...
017 TX OCTETS: 3929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929
e9723929e9723929e9723929e972 ...
018 TX OCTETS: 29e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9
723929e9723929e9723929e97239 ...
019 TX OCTETS: e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e972
3929e9723929e9723929e9723929 ...
020 TX OCTETS: 723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e97239
29e9723929e9723929e9723929e9 ...
021 TX OCTETS: 3929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929
e9723929e9723929e9723929e972 ...
022 TX OCTETS: 29e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9
723929e9723929e9723929e97239 ...
023 TX OCTETS: e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e972
3929e9723929e9723929e9723929 ...
024 TX OCTETS: 723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e97239
29e9723929e9723929e9723929e9 ...
025 TX OCTETS: 3929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929
e9723929e9723929e9723929e972 ...
026 TX OCTETS: 29e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9
723929e9723929e9723929e97239 ...
027 TX OCTETS: e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e972
3929e9723929e9723929e9723929 ...
028 TX OCTETS: 723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e97239
29e9723929e9723929e9723929e9 ...
029 TX OCTETS: 3929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929
e9723929e9723929e9723929e972 ...
030 TX OCTETS: 29e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9
723929e9723929e9723929e97239 ...
031 TX OCTETS: e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e972
3929e9723929e9723929e9723929 ...
032 TX OCTETS: 723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e97239
29e9723929e9723929e9723929e9 ...
033 TX OCTETS: 3929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929
e9723929e9723929e9723929e972 ...
034 TX OCTETS: 29e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9
723929e9723929e9723929e97239 ...
035 TX OCTETS: e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e972
3929e9723929e9723929e9723929 ...
036 TX OCTETS: 723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e97239
29e9723929e9723929e9723929e9 ...
037 TX OCTETS: 3929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929
e9723929e9723929e9723929e972 ...
038 TX OCTETS: 29e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9
723929e9723929e9723929e97239 ...
039 TX OCTETS: e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e972
3929e9723929e9723929e9723929 ...
040 TX OCTETS: 723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e97239
29e9723929e9723929e9723929e9 ...
041 TX OCTETS: 3929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929
e9723929e9723929e9723929e972 ...
042 TX OCTETS: 29e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9
723929e9723929e9723929e97239 ...
043 TX OCTETS: e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e972
3929e9723929e9723929e9723929 ...
044 TX OCTETS: 723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e97239
29e9723929e9723929e9723929e9 ...
045 TX OCTETS: 3929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929
e9723929e9723929e9723929e972 ...
046 TX OCTETS: 29e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9
723929e9723929e9723929e97239 ...
047 TX OCTETS: e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e972
3929e9723929e9723929e9723929 ...
048 TX OCTETS: 723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e97239
29e9723929e9723929e9723929e9 ...
049 TX OCTETS: 3929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929
e9723929e9723929e9723929e972 ...
050 TX OCTETS: 29e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9
723929e9723929e9723929e97239 ...
051 TX OCTETS: e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e972
3929e9723929e9723929e9723929 ...
052 TX OCTETS: 723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e97239
29e9723929e9723929e9723929e9 ...
053 TX OCTETS: 3929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929
e9723929e9723929e9723929e972 ...
054 TX OCTETS: 29e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9
723929e9723929e9723929e97239 ...
055 TX OCTETS: e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e972
3929e9723929e9723929e9723929 ...
056 TX OCTETS: 723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e97239
29e9723929e9723929e9723929e9 ...
057 TX OCTETS: 3929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929
e9723929e9723929e9723929e972 ...
058 TX OCTETS: 29e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9
723929e9723929e9723929e97239 ...
059 TX OCTETS: e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e972
3929e9723929e9723929e9723929 ...
060 TX OCTETS: 723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e97239
29e9723929e9723929e9723929e9 ...
061 TX OCTETS: 3929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929
e9723929e9723929e9723929e972 ...
062 TX OCTETS: 29e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9
723929e9723929e9723929e97239 ...
063 TX OCTETS: e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e972
3929e9723929e9723929e9723929 ...
064 TX OCTETS: 723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e97239
29e9723929e9723929e9723929e9 ...
065 TX OCTETS: 3929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929
e9723929e9723929e9723929e972 ...
066 TX OCTETS: 29e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9
723929e9723929e9723929e97239 ...
067 TX OCTETS: e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e972
3929e9723929e9723929e9723929 ...
068 TX OCTETS: 723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e97239
29e9723929e9723929e9723929e9 ...
069 TX OCTETS: 3929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929e9723929
e9723929e9723929e9723929e972 ...
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=002858af, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
0x03e8
074 TX OCTETS: 8882002858af03c0
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