websock server - Case 9.2.6 : Pass - 229 ms @ 2026-06-02T16:13:40.194Z
Case Description
Send binary message message with payload of length 16 * 2**20 (16M).
Case Expectation
Receive echo'ed binary message (with payload as sent).
Case Outcome
Received binary message of length 16777216.
Expected:
{}
Observed:
[]
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: MCIUIQOTBWyzSkyl+Qz2FA== Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols Date: Tue, 02 Jun 2026 16:13:40 GMT Connection: Upgrade Upgrade: websocket Sec-Websocket-Accept: jnfnf+IRUpVp8jV/pVFD/XtBhsw=
| 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 | 7 | 70 |
| 166 | 1 | 166 |
| 169 | 1 | 169 |
| 328 | 1 | 328 |
| 11698 | 1 | 11698 |
| 34226 | 3 | 102678 |
| 34332 | 2 | 68664 |
| 35840 | 1 | 35840 |
| 39240 | 1 | 39240 |
| 44032 | 1 | 44032 |
| 54166 | 19 | 1029154 |
| 54272 | 1 | 54272 |
| 62464 | 1 | 62464 |
| 62976 | 2 | 125952 |
| 65271 | 1 | 65271 |
| 65324 | 3 | 195972 |
| 65377 | 1 | 65377 |
| 65430 | 3 | 196290 |
| 65483 | 3 | 196449 |
| 65536 | 221 | 14483456 |
| Total | 275 | 16777546 |
| Chop Size | Count | Octets |
| 8 | 1 | 8 |
| 244 | 1 | 244 |
| 16777230 | 1 | 16777230 |
| Total | 3 | 16777482 |
| Opcode | Count |
| 0 | 15 |
| 2 | 1 |
| 8 | 1 |
| Total | 17 |
| Opcode | Count |
| 2 | 1 |
| 8 | 1 |
| Total | 2 |
000 TX OCTETS: 474554202f777320485454502f312e310d0a557365722d4167656e743a204175746f6261686e5465737453756974652f3235
2e31302e312d302e31302e390d0a ...
001 RX OCTETS: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a446174653a205475652c203032204a75
6e20323032362031363a31333a34 ...
002 CLOSE CONNECTION AFTER 100.000000 sec
003 TX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=2, MASK=5214be94, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
0x03e8
004 TX OCTETS: 88825214be9451fc
005 RX OCTETS: 880203e8
006 RX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=2, MASKED=False, MASK=None
0x03e8
007 TCP DROPPED BY PEER