go-httpbin - Case 4.1.3 : Pass - 1 ms @ 2025-10-26T11:05:06.138Z
Case Description
Send small text message, then send frame with reserved non-control Opcode = 5, then send Ping.
Case Expectation
Echo for first message is received, but then connection is failed immediately, since reserved opcode frame is used. A Pong is not received.
Case Outcome
Actual events match at least one expected.
Expected:
{'OK': [('message', u'Hello, world!', False)], 'NON-STRICT': []}
Observed:
[('message', u'Hello, world!', False)]
Case Closing Behavior
Connection was properly closed (OK)
GET / HTTP/1.1 User-Agent: AutobahnTestSuite/25.10.1-0.10.9 Host: 127.0.0.1:45839 Upgrade: WebSocket Connection: Upgrade Pragma: no-cache Cache-Control: no-cache Sec-WebSocket-Key: XbSG1HtlhbMzx5bDZSnMaQ== Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols Connection: upgrade Sec-Websocket-Accept: /Y1cJNFjVEm5vDquYd0F3TOBd84= Upgrade: websocket Date: Sun, 26 Oct 2025 11:05:06 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 | opcode unknown | The close reason the peer sent me in close frame (if any). |
| Chop Size | Count | Octets |
| 15 | 1 | 15 |
| 18 | 1 | 18 |
| 166 | 1 | 166 |
| Total | 3 | 199 |
| Chop Size | Count | Octets |
| 6 | 2 | 12 |
| 8 | 1 | 8 |
| 19 | 1 | 19 |
| 243 | 1 | 243 |
| Total | 5 | 282 |
| Opcode | Count |
| 1 | 1 |
| 8 | 1 |
| Total | 2 |
| Opcode | Count |
| 1 | 1 |
| 5 | 1 |
| 8 | 1 |
| 9 | 1 |
| Total | 4 |
000 TX OCTETS: 474554202f20485454502f312e310d0a557365722d4167656e743a204175746f6261686e5465737453756974652f32352e31
302e312d302e31302e390d0a486f ...
001 RX OCTETS: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a436f6e6e656374696f6e3a2075706772
6164650d0a5365632d576562736f ...
002 TX FRAME : OPCODE=1, FIN=True, RSV=0, PAYLOAD-LEN=13, MASK=2fd0d1ab, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
Hello, world!
003 TX OCTETS: 818d2fd0d1ab67b5bdc740fcf1dc40a2bdcf0e
004 TX FRAME : OPCODE=5, FIN=True, RSV=0, PAYLOAD-LEN=0, MASK=d3b70d95, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
005 TX OCTETS: 8580d3b70d95
006 TX FRAME : OPCODE=9, FIN=True, RSV=0, PAYLOAD-LEN=0, MASK=8ad4cfd9, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
007 TX OCTETS: 89808ad4cfd9
008 FAIL CONNECTION AFTER 1.000000 sec
009 RX OCTETS: 810d48656c6c6f2c20776f726c6421
010 RX FRAME : OPCODE=1, FIN=True, RSV=0, PAYLOAD-LEN=13, MASKED=False, MASK=None
Hello, world!
011 RX OCTETS: 881003ea6f70636f646520756e6b6e6f776e
012 RX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=16, MASKED=False, MASK=None
0x03ea6f70636f646520756e6b6e6f776e
013 TX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=2, MASK=21ed829d, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
0x03e8
014 TX OCTETS: 888221ed829d2205
015 TCP DROPPED BY PEER