Add unit tests for helpers

**Description**
Currently data lacks proper monitoring support.

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

**Priority**: Low/Medium

No file, helper, or test path is named, so first locate the helper implementations and their existing unit tests in the repository. Clarify which monitoring signals and configuration options are required, then add tests showing sensible defaults and configurable behavior are covered.

Written by the indexing model from the issue text.