TC_049_CS Fix connectorId 0 reservation StatusNotification

[razvanphp]

I understood the original idea of the code to have some kind of "virtual" reservation on connectorId 0, but now the OCTT really wants to get back StatusNotification with Reserved on one of the connectors (while the second is made Unavailable by the tool).

I think also from the UX point of view, it would be strange to arrive at a CS, see the LED green and available but not be able to charge (because of a reservation on connector 0 you cannot see).

Maybe with this "reserve first available connector" we could simplify some logic in the ReservationService code, but didn't want to get into that now...

ReserveNow with no StatusNotification back:

[14:14:01.976] [msg-out]  [2, "f2a15b3d-ff16-4ffb-94b6-403451dc4b14", "GetConfiguration", {"key":["ReserveConnectorZeroSupported"]}]
[14:14:01.977] [info]  Waiting for response message of type GetConfigurationResponse
[14:14:02.155] [RESPONSE]
[14:14:02.155] [msg-in]  [3,"f2a15b3d-ff16-4ffb-94b6-403451dc4b14",{"configurationKey":[{"key":"ReserveConnectorZeroSupported","readonly":true,"value":"true"}]}]
[14:14:02.158] [info]  Received response message of the expected type.
[14:14:02.158] [info]  Entering state SetConnectorUnavailable
[14:14:02.159] [REQUEST]
[14:14:02.159] [msg-out]  [2, "fd73edfc-e61a-4e73-b5fc-eac7732fb64f", "ChangeAvailability", {"connectorId":2,"type":"Inoperative"}]
[14:14:02.159] [info]  Waiting for response message of type ChangeAvailabilityResponse
[14:14:02.327] [RESPONSE]
[14:14:02.327] [msg-in]  [3,"fd73edfc-e61a-4e73-b5fc-eac7732fb64f",{"status":"Accepted"}]
[14:14:02.338] [info]  Received response message of the expected type.
[14:14:02.340] [info]  Waiting for request message of type StatusNotificationRequest
[14:14:02.403] [REQUEST]
[14:14:02.403] [msg-in]  [2,"46ab8dfb-d4c9-3346-ae60-2d5c049d6c75","StatusNotification",{"connectorId":2,"errorCode":"NoError","status":"Unavailable","timestamp":"2025-11-30T14:14:01Z"}]
[14:14:02.418] [info]  Received request message of the expected type.
[14:14:02.419] [RESPONSE]
[14:14:02.419] [msg-out]  [3, "46ab8dfb-d4c9-3346-ae60-2d5c049d6c75", {}]
[14:14:02.419] [info]  Reached state SetConnectorUnavailable
[14:14:02.419] [info]  ========================== Starting Main Testcase Steps ==========================
[14:14:02.419] [info]  Entering state Reserved
[14:14:02.420] [REQUEST]
[14:14:02.420] [msg-out]  [2, "a177519f-7418-4abd-b611-fb942f838fa8", "ReserveNow", {"connectorId":0,"expiryDate":"2025-11-30T14:16:02Z","idTag":"042E3BDA6B6B80","reservationId":14}]
[14:14:02.420] [info]  Waiting for response message of type ReserveNowResponse
[14:14:02.557] [REQUEST]
[14:14:02.557] [msg-in]  [2,"fbbd4c95-4ecf-2d5b-dab8-fc65e4bca5a4","StatusNotification",{"connectorId":2,"errorCode":"NoError","status":"Unavailable","timestamp":"2025-11-30T14:14:01Z"}]
[14:14:02.560] [RESPONSE]
[14:14:02.560] [msg-out]  [3, "fbbd4c95-4ecf-2d5b-dab8-fc65e4bca5a4", {}]
[14:14:02.733] [RESPONSE]
[14:14:02.733] [msg-in]  [3,"a177519f-7418-4abd-b611-fb942f838fa8",{"status":"Accepted"}]
[14:14:02.740] [info]  Received response message of the expected type.
[14:14:02.740] [info]  Waiting for request message of type StatusNotificationRequest
[14:14:52.905] [REQUEST]
[14:14:52.905] [msg-in]  [2,"ee420e23-69b1-eb4d-b7d8-54cc15b46c75","Heartbeat",{}]
[14:14:52.911] [RESPONSE]
[14:14:52.911] [msg-out]  [3, "ee420e23-69b1-eb4d-b7d8-54cc15b46c75", {"currentTime":"2025-11-30T14:14:52.911Z"}]
[14:15:07.740] [info]  The expected message was not received within the timeout window.
[14:15:07.740] [info]  The value of 'Reset CS after testcase' is false
[14:15:07.740] [info]  ============================ Starting Final Cleanup ==============================
[14:15:07.845] [verdict]  FAIL
[14:15:07.845] [info]  The test case has ended.
[14:15:07.845] [stopped_testcase]  

Forcing a status notification send:

[14:59:00.054] [msg-out]  [2, "a563f401-f398-4c52-bddb-816aa9db52bb", "GetConfiguration", {"key":["ReserveConnectorZeroSupported"]}]
[14:59:00.055] [info]  Waiting for response message of type GetConfigurationResponse
[14:59:00.300] [RESPONSE]
[14:59:00.300] [msg-in]  [3,"a563f401-f398-4c52-bddb-816aa9db52bb",{"configurationKey":[{"key":"ReserveConnectorZeroSupported","readonly":true,"value":"true"}]}]
[14:59:00.313] [info]  Received response message of the expected type.
[14:59:00.313] [info]  Entering state SetConnectorUnavailable
[14:59:00.313] [REQUEST]
[14:59:00.313] [msg-out]  [2, "4eb08224-3232-4c61-b0aa-705eb028fcc2", "ChangeAvailability", {"connectorId":2,"type":"Inoperative"}]
[14:59:00.314] [info]  Waiting for response message of type ChangeAvailabilityResponse
[14:59:00.518] [RESPONSE]
[14:59:00.518] [msg-in]  [3,"4eb08224-3232-4c61-b0aa-705eb028fcc2",{"status":"Accepted"}]
[14:59:00.533] [info]  Received response message of the expected type.
[14:59:00.533] [info]  Waiting for request message of type StatusNotificationRequest
[14:59:00.593] [REQUEST]
[14:59:00.593] [msg-in]  [2,"fd0b2d5c-543b-1365-315b-c62a668a06eb","StatusNotification",{"connectorId":2,"errorCode":"NoError","status":"Unavailable","timestamp":"2025-11-30T14:58:59Z"}]
[14:59:00.612] [info]  Received request message of the expected type.
[14:59:00.613] [RESPONSE]
[14:59:00.613] [msg-out]  [3, "fd0b2d5c-543b-1365-315b-c62a668a06eb", {}]
[14:59:00.613] [info]  Reached state SetConnectorUnavailable
[14:59:00.613] [info]  ========================== Starting Main Testcase Steps ==========================
[14:59:00.613] [info]  Entering state Reserved
[14:59:00.614] [REQUEST]
[14:59:00.614] [msg-out]  [2, "59436465-814a-440c-9ab8-ff19a32a199d", "ReserveNow", {"connectorId":0,"expiryDate":"2025-11-30T15:01:00Z","idTag":"042E3BDA6B6B80","reservationId":18}]
[14:59:00.615] [info]  Waiting for response message of type ReserveNowResponse
[14:59:00.753] [REQUEST]
[14:59:00.753] [msg-in]  [2,"b3c62b0e-3d5f-866a-771b-09e020e1c879","StatusNotification",{"connectorId":2,"errorCode":"NoError","status":"Unavailable","timestamp":"2025-11-30T14:58:59Z"}]
[14:59:00.775] [RESPONSE]
[14:59:00.775] [msg-out]  [3, "b3c62b0e-3d5f-866a-771b-09e020e1c879", {}]
[14:59:00.969] [RESPONSE]
[14:59:00.969] [msg-in]  [3,"59436465-814a-440c-9ab8-ff19a32a199d",{"status":"Accepted"}]
[14:59:00.976] [info]  Received response message of the expected type.
[14:59:00.977] [info]  Waiting for request message of type StatusNotificationRequest
[14:59:01.063] [REQUEST]
[14:59:01.063] [msg-in]  [2,"d1586980-0812-71b8-9df7-f090f090f090","StatusNotification",{"connectorId":1,"errorCode":"NoError","status":"Available","timestamp":"2025-11-30T14:58:59Z"}]
[14:59:01.076] [info]  Received request message of the expected type.
[14:59:01.077] [RESPONSE]
[14:59:01.077] [msg-out]  [3, "d1586980-0812-71b8-9df7-f090f090f090", {}]
[14:59:01.077] [info]  Status notification status should be 'Reserved (6)'.
[14:59:01.078] [info]  The value of 'Reset CS after testcase' is false
[14:59:01.078] [info]  ============================ Starting Final Cleanup ==============================
[14:59:01.181] [verdict]  FAIL
[14:59:01.182] [info]  The test case has ended.
[14:59:01.182] [stopped_testcase]  

[matth-x]

@razvanphp Thanks for the analysis! As I understand the OCTT scenario, only one connector is Available, so reserving connector 0 is equivalent to reserving the last available connector. That's a good point of the test case. Is only the StatusNotification missing or is the whole ConnectorZero logic of MO broken?

The logic to determine the StatusNotification status bypasses the ConnectorZero logic, but could be changed to include it. In the following line, getReservation(connectorId) could be changed to getReservation(connectorId, nullptr, nullptr):

MicroOcpp/src/MicroOcpp/Model/ConnectorBase/Connector.cpp

Line 176 in 71e562b

else if (model.getReservationService() && model.getReservationService()->getReservation(connectorId)) {

If more than the StatusNotification logic is broken, I'm happy to remove parts of the ConnectorZero support again, starting with this PR. Ultimately probably no one would be missing it if it was removed altogether.