Draft: Hdpi 6527 api automation tests

[kanthnew]

https://tools.hmcts.net/jira/browse/HDPI-6527

Change description

To add automated API tests for the payment-uodate api service callback
The aim is to verify that the integration layer behaves as expected, so that the callbacks request is validated before processing payment update.
Payment update process is successful
Callbacks in scope:
Payment Update Callback: PUT /payment-update
Testing Support Endpoint: GET /testing-support/case-payment-references (or similar path) to retrieve reference details for test context.
Test type:
Automated API / Functional tests: Covering the REST controller and Service layer.
Validation Testing: Specifically targeting mandatory field rules (negative testing).
Verification points:
Data Validation: Ensuring the service rejects requests with missing mandatory fields as per the data model.
Persistence: Verifying that invalid requests do not result in a record being saved to the database.
Integration: Verifying the REST controller successfully hands off valid payloads to the service layer.

Testing done

Checklist

• commit messages are meaningful and follow good commit message guidelines
• README and other documentation has been updated / added (if needed)
• tests have been updated / new tests has been added (if needed)
• Does this PR introduce a breaking change

[github-actions]

CCD diff summary

👉 Full report: https://github.com/hmcts/pcs-api/actions/runs/27603654722?check_suite_focus=true

No change

[hmcts-jenkins-j-to-z]

Plan Result (aat)

⚠️ Resource Deletion will happen

This plan contains resource delete operation. Please check the plan result very carefully!

Plan: 0 to add, 0 to change, 1 to destroy.

• Delete
  • module.postgresql.azurerm_postgresql_flexible_server_configuration.pgsql_server_config["pg_qs.query_capture_mode"]

Change Result (Click me)

  # module.postgresql.azurerm_postgresql_flexible_server_configuration.pgsql_server_config["pg_qs.query_capture_mode"] will be destroyed
  # (because key ["pg_qs.query_capture_mode"] is not in for_each map)
  - resource "azurerm_postgresql_flexible_server_configuration" "pgsql_server_config" {
      - id        = "/subscriptions/1c4f0704-a29e-403d-b719-b90c34ef14c9/resourceGroups/pcs-data-aat/providers/Microsoft.DBforPostgreSQL/flexibleServers/pcs-aat/configurations/pg_qs.query_capture_mode" -> null
      - name      = "pg_qs.query_capture_mode" -> null
      - server_id = "/subscriptions/1c4f0704-a29e-403d-b719-b90c34ef14c9/resourceGroups/pcs-data-aat/providers/Microsoft.DBforPostgreSQL/flexibleServers/pcs-aat" -> null
      - value     = "top" -> null
    }

Plan: 0 to add, 0 to change, 1 to destroy.

[kanthnew]

Openned a new PR with latest from main branch as rebase got complicated

[kanthnew]

new PR at #2019