websock server - Case 1.2.8 : Pass - 19 ms @ 2026-06-23T08:24:06.324Z
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: jO57rDBm6nhOtgLVT2bfvA== Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols Date: Tue, 23 Jun 2026 08:24:06 GMT Connection: Upgrade Upgrade: websocket Sec-Websocket-Accept: uGq6JWooSyo6J5I3ghDVPjssd0Y=
| 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=6e95b89c, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=997, SYNC=False
0xfefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefefe
fefefefefefefefefefefefefefefe ...
003 TX OCTETS: 82ff00000000000100006e95b89c906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662
906b4662906b4662906b4662906b ...
004 FAIL CONNECTION AFTER 10.000000 sec
005 TX OCTETS: 62906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b466290
6b4662906b4662906b4662906b46 ...
006 TX OCTETS: 906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b
4662906b4662906b4662906b4662 ...
007 TX OCTETS: 6b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b46
62906b4662906b4662906b466290 ...
008 TX OCTETS: 4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662
906b4662906b4662906b4662906b ...
009 TX OCTETS: 62906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b466290
6b4662906b4662906b4662906b46 ...
010 TX OCTETS: 906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b
4662906b4662906b4662906b4662 ...
011 TX OCTETS: 6b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b46
62906b4662906b4662906b466290 ...
012 TX OCTETS: 4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662
906b4662906b4662906b4662906b ...
013 TX OCTETS: 62906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b466290
6b4662906b4662906b4662906b46 ...
014 TX OCTETS: 906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b
4662906b4662906b4662906b4662 ...
015 TX OCTETS: 6b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b46
62906b4662906b4662906b466290 ...
016 TX OCTETS: 4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662
906b4662906b4662906b4662906b ...
017 TX OCTETS: 62906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b466290
6b4662906b4662906b4662906b46 ...
018 TX OCTETS: 906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b
4662906b4662906b4662906b4662 ...
019 TX OCTETS: 6b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b46
62906b4662906b4662906b466290 ...
020 TX OCTETS: 4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662
906b4662906b4662906b4662906b ...
021 TX OCTETS: 62906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b466290
6b4662906b4662906b4662906b46 ...
022 TX OCTETS: 906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b
4662906b4662906b4662906b4662 ...
023 TX OCTETS: 6b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b46
62906b4662906b4662906b466290 ...
024 TX OCTETS: 4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662
906b4662906b4662906b4662906b ...
025 TX OCTETS: 62906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b466290
6b4662906b4662906b4662906b46 ...
026 TX OCTETS: 906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b
4662906b4662906b4662906b4662 ...
027 TX OCTETS: 6b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b46
62906b4662906b4662906b466290 ...
028 TX OCTETS: 4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662
906b4662906b4662906b4662906b ...
029 TX OCTETS: 62906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b466290
6b4662906b4662906b4662906b46 ...
030 TX OCTETS: 906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b
4662906b4662906b4662906b4662 ...
031 TX OCTETS: 6b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b46
62906b4662906b4662906b466290 ...
032 TX OCTETS: 4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662
906b4662906b4662906b4662906b ...
033 TX OCTETS: 62906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b466290
6b4662906b4662906b4662906b46 ...
034 TX OCTETS: 906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b
4662906b4662906b4662906b4662 ...
035 TX OCTETS: 6b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b46
62906b4662906b4662906b466290 ...
036 TX OCTETS: 4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662
906b4662906b4662906b4662906b ...
037 TX OCTETS: 62906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b466290
6b4662906b4662906b4662906b46 ...
038 TX OCTETS: 906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b
4662906b4662906b4662906b4662 ...
039 TX OCTETS: 6b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b46
62906b4662906b4662906b466290 ...
040 TX OCTETS: 4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662
906b4662906b4662906b4662906b ...
041 TX OCTETS: 62906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b466290
6b4662906b4662906b4662906b46 ...
042 TX OCTETS: 906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b
4662906b4662906b4662906b4662 ...
043 TX OCTETS: 6b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b46
62906b4662906b4662906b466290 ...
044 TX OCTETS: 4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662
906b4662906b4662906b4662906b ...
045 TX OCTETS: 62906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b466290
6b4662906b4662906b4662906b46 ...
046 TX OCTETS: 906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b
4662906b4662906b4662906b4662 ...
047 TX OCTETS: 6b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b46
62906b4662906b4662906b466290 ...
048 TX OCTETS: 4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662
906b4662906b4662906b4662906b ...
049 TX OCTETS: 62906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b466290
6b4662906b4662906b4662906b46 ...
050 TX OCTETS: 906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b
4662906b4662906b4662906b4662 ...
051 TX OCTETS: 6b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b46
62906b4662906b4662906b466290 ...
052 TX OCTETS: 4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662
906b4662906b4662906b4662906b ...
053 TX OCTETS: 62906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b466290
6b4662906b4662906b4662906b46 ...
054 TX OCTETS: 906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b
4662906b4662906b4662906b4662 ...
055 TX OCTETS: 6b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b46
62906b4662906b4662906b466290 ...
056 TX OCTETS: 4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662
906b4662906b4662906b4662906b ...
057 TX OCTETS: 62906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b466290
6b4662906b4662906b4662906b46 ...
058 TX OCTETS: 906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b
4662906b4662906b4662906b4662 ...
059 TX OCTETS: 6b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b46
62906b4662906b4662906b466290 ...
060 TX OCTETS: 4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662
906b4662906b4662906b4662906b ...
061 TX OCTETS: 62906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b466290
6b4662906b4662906b4662906b46 ...
062 TX OCTETS: 906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b
4662906b4662906b4662906b4662 ...
063 TX OCTETS: 6b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b46
62906b4662906b4662906b466290 ...
064 TX OCTETS: 4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662
906b4662906b4662906b4662906b ...
065 TX OCTETS: 62906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b466290
6b4662906b4662906b4662906b46 ...
066 TX OCTETS: 906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b
4662906b4662906b4662906b4662 ...
067 TX OCTETS: 6b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b46
62906b4662906b4662906b466290 ...
068 TX OCTETS: 4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662
906b4662906b4662906b4662906b ...
069 TX OCTETS: 62906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b4662906b466290
6b4662906b4662906b4662906b46 ...
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=cfca1bc4, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
0x03e8
074 TX OCTETS: 8882cfca1bc4cc22
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