Add unit tests for routes

**Description**
Currently routes lacks proper notifications support.

**Proposed solution**
Add configurable notifications with sensible defaults.

**Priority**: Low/Medium

No files or test paths are identified. Start by locating the routes implementation and the existing unit-test setup, then determine how notification configuration and defaults should be represented. Done means routes support configurable notifications with sensible defaults and the behavior is covered by unit tests.

Written by the indexing model from the issue text.