go-httpbin - Case 5.17 : Pass - 1 ms @ 2025-10-28T09:23:44.824Z
Case Description
Repeated 2x: Continuation Frame with FIN = true (where there is nothing to continue), then text Message fragmented into 2 fragments.
Case Expectation
The connection is failed immediately, since there is no message to continue.
Case Outcome
Actual events match at least one expected.
Expected:
{'OK': []}
Observed:
[]
Case Closing Behavior
Connection was properly closed (OK)
GET / HTTP/1.1 User-Agent: AutobahnTestSuite/25.10.1-0.10.9 Host: 127.0.0.1:40139 Upgrade: WebSocket Connection: Upgrade Pragma: no-cache Cache-Control: no-cache Sec-WebSocket-Key: 4R2AjQVTHOUDYcf66fWs4Q== Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols Connection: upgrade Sec-Websocket-Accept: /taprZs7EmnX+jrUEm5Gx/cp/S8= Upgrade: websocket Date: Tue, 28 Oct 2025 09:23:44 GMT
| Key | Value | Description |
| isServer | False | True, iff I (the fuzzer) am a server, and the peer is a client. |
| closedByMe | False | 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 | 1002 | The close code the peer sent me in close frame (if any). |
| remoteCloseReason | continuation frame unexpected | The close reason the peer sent me in close frame (if any). |
| Chop Size | Count | Octets |
| 33 | 1 | 33 |
| 166 | 1 | 166 |
| Total | 2 | 199 |
| Chop Size | Count | Octets |
| 8 | 1 | 8 |
| 15 | 6 | 90 |
| 243 | 1 | 243 |
| Total | 8 | 341 |
| Opcode | Count |
| 8 | 1 |
| Total | 1 |
| Opcode | Count |
| 0 | 4 |
| 1 | 2 |
| 8 | 1 |
| Total | 7 |
000 TX OCTETS: 474554202f20485454502f312e310d0a557365722d4167656e743a204175746f6261686e5465737453756974652f32352e31
302e312d302e31302e390d0a486f ...
001 RX OCTETS: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a436f6e6e656374696f6e3a2075706772
6164650d0a5365632d576562736f ...
002 TX FRAME : OPCODE=0, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=2100eb60, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
fragment1
003 TX OCTETS: 80892100eb6047728a074c65851410
004 TX FRAME : OPCODE=1, FIN=False, RSV=0, PAYLOAD-LEN=9, MASK=1871c69c, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
fragment2
005 TX OCTETS: 01891871c69c7e03a7fb7514a8e82a
006 TX FRAME : OPCODE=0, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=095f3b98, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
fragment3
007 TX OCTETS: 8089095f3b986f2d5aff643a55ec3a
008 TX FRAME : OPCODE=0, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=03765ca1, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
fragment1
009 TX OCTETS: 808903765ca165043dc66e1332d532
010 TX FRAME : OPCODE=1, FIN=False, RSV=0, PAYLOAD-LEN=9, MASK=c2e97015, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
fragment2
011 TX OCTETS: 0189c2e97015a49b1172af8c1e61f0
012 TX FRAME : OPCODE=0, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=252324a6, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
fragment3
013 TX OCTETS: 8089252324a6435145c148464ad216
014 FAIL CONNECTION AFTER 1.000000 sec
015 RX OCTETS: 881f03ea636f6e74696e756174696f6e206672616d6520756e6578706563746564
016 RX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=31, MASKED=False, MASK=None
0x03ea636f6e74696e756174696f6e206672616d6520756e6578706563746564
017 TX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=2, MASK=833f6581, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
0x03e8
018 TX OCTETS: 8882833f658180d7
019 TCP DROPPED BY PEER