websock-client - Case 7.1.6 : Informational - 25 ms @ 2026-06-23T08:24:13.295Z
Case Description
Send 256K message followed by close then a ping
Case Expectation
Case outcome depends on implementation defined close behavior. Message and close frame are sent back to back. If the close frame is processed before the text message write is complete (as can happen in asynchronous processing models) the close frame is processed first and the text message may not be received or may only be partially received.
Case Outcome
Actual events differ from any expected.
Expected:
{'OK': [('message', u'Hello World!', False)], 'NON-STRICT': []}
Observed:
[('message', u'BAsd7&jh23BAsd7&jh23BAsd7&jh23BAsd7&jh23BAsd7&jh23BAsd7&jh23BAsd ...', False), ('message', u'Hello World!', False)]
Case Closing Behavior
The spec requires the connection to be failed cleanly here (INFORMATIONAL)
GET /runCase?case=215&agent=websock-client HTTP/1.1 Connection: Upgrade Upgrade: websocket Host: 127.0.0.1:9001 Sec-Websocket-Extensions: permessage-deflate; client_max_window_bits=15 Cache-Control: no-cache Sec-Websocket-Version: 13 Sec-Websocket-Key: o5iCrNArf5WYsJ6Q8vZmQA==
HTTP/1.1 101 Switching Protocols Server: AutobahnTestSuite/25.10.1-0.10.9 X-Powered-By: AutobahnPython/0.10.9 Upgrade: WebSocket Connection: Upgrade Sec-WebSocket-Accept: vzdPLVU+/UfbFh5RWTD8935++NY=
| Key | Value | Description |
| isServer | True | 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 |
| 288 | 1 | 288 |
| 6176 | 1 | 6176 |
| 29696 | 2 | 59392 |
| 65536 | 3 | 196608 |
| Total | 7 | 262464 |
| Chop Size | Count | Octets |
| 2 | 1 | 2 |
| 4 | 1 | 4 |
| 14 | 1 | 14 |
| 208 | 1 | 208 |
| 262154 | 1 | 262154 |
| Total | 5 | 262382 |
| Opcode | Count |
| 1 | 2 |
| Total | 2 |
| Opcode | Count |
| 1 | 2 |
| 8 | 1 |
| 9 | 1 |
| Total | 4 |
000 RX OCTETS: 474554202f72756e436173653f636173653d323135266167656e743d776562736f636b2d636c69656e7420485454502f312e
310d0a436f6e6e656374696f6e3a ...
001 TX OCTETS: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a5365727665723a204175746f6261686e
5465737453756974652f32352e31 ...
002 TX FRAME : OPCODE=1, FIN=True, RSV=0, PAYLOAD-LEN=10, MASK=None, PAYLOAD-REPEAT-LEN=262144, CHOPSIZE=None, SYNC=False
BAsd7&jh23
003 TX OCTETS: 817f00000000000400004241736437266a6832334241736437266a6832334241736437266a6832334241736437266a683233
4241736437266a68323342417364 ...
004 TX FRAME : OPCODE=1, FIN=True, RSV=0, PAYLOAD-LEN=12, MASK=None, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
Hello World!
005 TX OCTETS: 810c48656c6c6f20576f726c6421
006 TX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=2, MASK=None, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
0x03e8
007 TX OCTETS: 880203e8
008 TX FRAME : OPCODE=9, FIN=True, RSV=0, PAYLOAD-LEN=0, MASK=None, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
009 TX OCTETS: 8900
010 FAIL CONNECTION AFTER 1.000000 sec
011 RX OCTETS: 81ff00000000000400009ebbf709dcfa846da99d9d61ac88b548eddfc02ff4d3c53adcfa846da99d9d61ac88b548eddfc02f
f4d3c53adcfa846da99d9d61ac88 ...
012 RX OCTETS: 846da99d9d61ac88b548eddfc02ff4d3c53adcfa846da99d9d61ac88b548eddfc02ff4d3c53adcfa846da99d9d61ac88b548
eddfc02ff4d3c53adcfa846da99d ...
013 RX OCTETS: c53adcfa846da99d9d61ac88b548eddfc02ff4d3c53adcfa846da99d9d61ac88b548eddfc02ff4d3c53adcfa846da99d9d61
ac88b548eddfc02ff4d3c53adcfa ...
014 RX OCTETS: c02ff4d3c53adcfa846da99d9d61ac88b548eddfc02ff4d3c53adcfa846da99d9d61ac88b548eddfc02ff4d3c53adcfa846d
a99d9d61ac88b548eddfc02ff4d3 ...
015 RX OCTETS: b548eddfc02ff4d3c53adcfa846da99d9d61ac88b548eddfc02ff4d3c53adcfa846da99d9d61ac88b548eddfc02ff4d3c53a
dcfa846da99d9d61ac88b548eddf ...
016 RX OCTETS: 9d61ac88b548eddfc02ff4d3c53adcfa846da99d9d61ac88b548eddfc02ff4d3c53adcfa846da99d9d61ac88b548eddfc02f
f4d3c53adcfa846da99d9d61ac88 ...
017 RX FRAME : OPCODE=1, FIN=True, RSV=0, PAYLOAD-LEN=262144, MASKED=True, MASK=3965626266373039
BAsd7&jh23BAsd7&jh23BAsd7&jh23BAsd7&jh23BAsd7&jh23BAsd7&jh23BAsd ...
018 RX FRAME : OPCODE=1, FIN=True, RSV=0, PAYLOAD-LEN=12, MASKED=True, MASK=3962316265633363
Hello World!
019 TCP DROPPED BY PEER