Test that no confirmation response is sent to RabbitMQ when MongoDB is down.

[vasile-baluta]

Description

Add test to verify that when MongoDB is down we do not confirm to message bus that the event has been processed.

Motivation

If MongoDB is unavailable and we conform to message bus that the event was processed the event will be removed from queue even if no data from it has persisted.

Exemplification

See above descriptions.

Benefits

Increase robustness of the application.

Possible Drawbacks

None