Add unit tests for auth

**Description**
Currently config lacks proper analytics support.

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

**Priority**: Low/Medium

First resolve the mismatch between the title, which asks for auth unit tests, and the description, which proposes configurable analytics. Then inspect the relevant configuration and existing test structure; done should mean the intended behavior is covered by tests, including sensible defaults if analytics is the actual scope.

Written by the indexing model from the issue text.