Failure paths
To specify that a test take different steps when a specific action fails, you can create a failure path and define sequences of actions for it. For example, a Publish action can fail to publish a message, or a subscriber can fail to subscriber properly or an incoming message might not pass validation.
You can select the Add failure path option from a test actions menu.
When this option is selected, nested failure path actions are automatically added to the sequence:
A series of actions can then be nested under the failure path actions.
Note: If you change the action type for a test step (for example, Subscribe to
Publish), any failure paths that exist are removed.