add first simple requester test

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 90.90909% with 1 line in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/config/mod.rs	80.0%	1 Missing :warning:

Files with missing lines	Coverage Δ
src/backend/nc_request/mod.rs	16.9% <100.0%> (+16.9%)	:arrow_up:
src/config/mod.rs	91.3% <80.0%> (-0.1%)	:arrow_down: