Add unit tests for store

**Feature request**
It would be great to have timeout for helpers.

**Use case**
Many users need this functionality for production deployments.

**Implementation idea**
Add a new config option `enable_timeout` with default `false`.

Start by locating the store unit tests and the helper configuration entry points. Confirm how the new enable_timeout option should affect helper timeouts and verify that its default is false. Done means the store tests cover the option and its default behavior.

Written by the indexing model from the issue text.