After the creation of the test plan for swatch contracts we need to start implementing the tests.

  This card focuses on the tests covering subscription management via Kafka messages.

  The following tests need to be implemented:

  subscriptions-creation-TC001 - Process a valid UMB subscription XML message from Kafka
  subscriptions-creation-TC002 - Process UMB subscription with AWS external references
  subscriptions-creation-TC003 - Process UMB subscription with Azure external references
  subscriptions-creation-TC004 - Process malformed UMB XML message
  subscriptions-creation-TC005 - Process UMB message with missing required fields
  subscriptions-creation-TC006 - Process subscription update via UMB
  subscriptions-creation-TC007 - Process UMB message with multiple products/SKUs
  subscriptions-creation-TC008 - Process terminated subscription via UMB

  Acceptance criteria:

  All 8 test cases (TC001-TC008) from the test plan are implemented and passing locally and in ephemeral environments.