Autobahn WebSocket Testsuite Report
Autobahn WebSocket

websock server - Case 2.10 : Pass - 3 ms @ 2026-06-23T08:24:00.515Z

Case Description

Send 10 Pings with payload.

Case Expectation

Pongs for our Pings with all the payloads. Note: This is not required by the Spec .. but we check for this behaviour anyway. Clean close with normal code.

Case Outcome

Actual events match at least one expected.

Expected:
{'OK': [('pong', u'payload-0'), ('pong', u'payload-1'), ('pong', u'payload-2'), ('pong', u'payload-3'), ('pong', u'payload-4'), ('pong', u'payload-5'), ('pong', u'payload-6'), ('pong', u'payload-7'), ('pong', u'payload-8'), ('pong', u'payload-9')]}

Observed:
[('pong', u'payload-0'), ('pong', u'payload-1'), ('pong', u'payload-2'), ('pong', u'payload-3'), ('pong', u'payload-4'), ('pong', u'payload-5'), ('pong', u'payload-6'), ('pong', u'payload-7'), ('pong', u'payload-8'), ('pong', u'payload-9')]

Case Closing Behavior

The spec requires the connection to be failed cleanly here (UNCLEAN)



Opening Handshake

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: Jc6EyXOx2Zj8WEZYB+yKPQ==
Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols
Date: Tue, 23 Jun 2026 08:24:00 GMT
Connection: Upgrade
Upgrade: websocket
Sec-Websocket-Accept: CqmqzwLVJj990W+s0NhLLoYIw1M=


Closing Behavior

KeyValueDescription
isServerFalseTrue, iff I (the fuzzer) am a server, and the peer is a client.
closedByMeTrueTrue, iff I have initiated closing handshake (that is, did send close first).
failedByMeFalseTrue, 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.
droppedByMeFalseTrue, iff I dropped the TCP connection.
wasCleanFalseTrue, iff full WebSocket closing handshake was performed (close frame sent and received) _and_ the server dropped the TCP (which is its responsibility).
wasNotCleanReasonpeer dropped the TCP connection without previous WebSocket closing handshakeWhen wasClean == False, the reason what happened.
wasServerConnectionDropTimeoutFalseWhen we are a client, and we expected the server to drop the TCP, but that didn't happen in time, this gets True.
wasOpenHandshakeTimeoutFalseWhen performing the opening handshake, but the peer did not finish in time, this gets True.
wasCloseHandshakeTimeoutFalseWhen we initiated a closing handshake, but the peer did not respond in time, this gets True.
localCloseCode1000The close code I sent in close frame (if any).
localCloseReasonNoneThe close reason I sent in close frame (if any).
remoteCloseCodeNoneThe close code the peer sent me in close frame (if any).
remoteCloseReasonNoneThe close reason the peer sent me in close frame (if any).


Wire Statistics

Octets Received by Chop Size

Chop SizeCountOctets
22122
88188
1661166
Total3276

Octets Transmitted by Chop Size

Chop SizeCountOctets
818
1510150
2441244
Total12402

Frames Received by Opcode

OpcodeCount
1010
Total10

Frames Transmitted by Opcode

OpcodeCount
81
910
Total11


Wire Log

000 TX OCTETS: 474554202f777320485454502f312e310d0a557365722d4167656e743a204175746f6261686e5465737453756974652f3235
               2e31302e312d302e31302e390d0a ...
001 RX OCTETS: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a446174653a205475652c203233204a75
               6e20323032362030383a32343a30 ...
002 TX FRAME : OPCODE=9, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=eef93d66, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               payload-0
003 TX OCTETS: 8989eef93d669e98440a8198594bde
004 TX FRAME : OPCODE=9, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=a3d723d4, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               payload-1
005 TX OCTETS: 8989a3d723d4d3b65ab8ccb647f992
006 TX FRAME : OPCODE=9, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=6f38e5c2, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               payload-2
007 TX OCTETS: 89896f38e5c21f599cae005981ef5d
008 TX FRAME : OPCODE=9, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=a530fc9b, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               payload-3
009 TX OCTETS: 8989a530fc9bd55185f7ca5198b696
010 TX FRAME : OPCODE=9, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=745a4fba, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               payload-4
011 TX OCTETS: 8989745a4fba043b36d61b3b2b9740
012 TX FRAME : OPCODE=9, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=4cdf48bf, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               payload-5
013 TX OCTETS: 89894cdf48bf3cbe31d323be2c9279
014 TX FRAME : OPCODE=9, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=932bbb53, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               payload-6
015 TX OCTETS: 8989932bbb53e34ac23ffc4adf7ea5
016 TX FRAME : OPCODE=9, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=174d01d6, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               payload-7
017 TX OCTETS: 8989174d01d6672c78ba782c65fb20
018 TX FRAME : OPCODE=9, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=10d357be, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               payload-8
019 TX OCTETS: 898910d357be60b22ed27fb2339328
020 TX FRAME : OPCODE=9, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=eec4485f, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               payload-9
021 TX OCTETS: 8989eec4485f9ea5313381a52c72d7
022 CLOSE CONNECTION AFTER 3.000000 sec
023 RX OCTETS: 8a097061796c6f61642d308a097061796c6f61642d31
024 RX FRAME : OPCODE=10, FIN=True, RSV=0, PAYLOAD-LEN=9, MASKED=False, MASK=None
               payload-0
025 RX FRAME : OPCODE=10, FIN=True, RSV=0, PAYLOAD-LEN=9, MASKED=False, MASK=None
               payload-1
026 RX OCTETS: 8a097061796c6f61642d328a097061796c6f61642d338a097061796c6f61642d348a097061796c6f61642d358a097061796c
               6f61642d368a097061796c6f6164 ...
027 RX FRAME : OPCODE=10, FIN=True, RSV=0, PAYLOAD-LEN=9, MASKED=False, MASK=None
               payload-2
028 RX FRAME : OPCODE=10, FIN=True, RSV=0, PAYLOAD-LEN=9, MASKED=False, MASK=None
               payload-3
029 RX FRAME : OPCODE=10, FIN=True, RSV=0, PAYLOAD-LEN=9, MASKED=False, MASK=None
               payload-4
030 RX FRAME : OPCODE=10, FIN=True, RSV=0, PAYLOAD-LEN=9, MASKED=False, MASK=None
               payload-5
031 RX FRAME : OPCODE=10, FIN=True, RSV=0, PAYLOAD-LEN=9, MASKED=False, MASK=None
               payload-6
032 RX FRAME : OPCODE=10, FIN=True, RSV=0, PAYLOAD-LEN=9, MASKED=False, MASK=None
               payload-7
033 RX FRAME : OPCODE=10, FIN=True, RSV=0, PAYLOAD-LEN=9, MASKED=False, MASK=None
               payload-8
034 RX FRAME : OPCODE=10, FIN=True, RSV=0, PAYLOAD-LEN=9, MASKED=False, MASK=None
               payload-9
035 TX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=2, MASK=5143ffa6, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               0x03e8
036 TX OCTETS: 88825143ffa652ab
037 TCP DROPPED BY PEER