websock server - Case 9.1.5 : Pass - 225 ms @ 2026-04-11T02:37:40.272Z
Case Description
Send text message message with payload of length 8 * 2**20 (8M).
Case Expectation
Receive echo'ed text message (with payload as sent).
Case Outcome
Received text message of length 8388608.
Expected:
{}
Observed:
[]
Case Closing Behavior
The spec requires the connection to be failed cleanly here (UNCLEAN)
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: CPl2jn+R7Xzah2SAy5I1Cg== Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols Date: Sat, 11 Apr 2026 02:37:40 GMT Upgrade: websocket Connection: Upgrade Sec-Websocket-Accept: Ug7lncnoM1Zqbb9e25EAVqcLqk8=
| 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 | False | True, iff full WebSocket closing handshake was performed (close frame sent and received) _and_ the server dropped the TCP (which is its responsibility). |
| wasNotCleanReason | peer dropped the TCP connection without previous WebSocket closing handshake | 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 | None | 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 |
| 10 | 1 | 10 |
| 166 | 1 | 166 |
| 593 | 1 | 593 |
| 11486 | 1 | 11486 |
| 15370 | 1 | 15370 |
| 29696 | 4 | 118784 |
| 32662 | 1 | 32662 |
| 34226 | 1 | 34226 |
| 34332 | 1 | 34332 |
| 47616 | 1 | 47616 |
| 52746 | 1 | 52746 |
| 53364 | 1 | 53364 |
| 54166 | 8 | 433328 |
| 54272 | 2 | 108544 |
| 56426 | 1 | 56426 |
| 62464 | 1 | 62464 |
| 63488 | 6 | 380928 |
| 64953 | 1 | 64953 |
| 65324 | 1 | 65324 |
| 65483 | 4 | 261932 |
| 65536 | 100 | 6553600 |
| Total | 139 | 8388854 |
| Chop Size | Count | Octets |
| 8 | 1 | 8 |
| 244 | 1 | 244 |
| 8388622 | 1 | 8388622 |
| Total | 3 | 8388874 |
| Opcode | Count |
| 0 | 7 |
| 1 | 1 |
| Total | 8 |
| Opcode | Count |
| 1 | 1 |
| 8 | 1 |
| Total | 2 |
000 TX OCTETS: 474554202f777320485454502f312e310d0a557365722d4167656e743a204175746f6261686e5465737453756974652f3235
2e31302e312d302e31302e390d0a ...
001 RX OCTETS: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a446174653a205361742c203131204170
7220323032362030323a33373a34 ...
002 CLOSE CONNECTION AFTER 100.000000 sec
003 TX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=2, MASK=d7f40e2d, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
0x03e8
004 TX OCTETS: 8882d7f40e2dd41c
005 TCP DROPPED BY PEER