Add run and reload tests to null backends

[AaronH88]

No description provided.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 41.34%. Comparing base (af3e477) to head (fc8a31f).
Report is 3 commits behind head on devel.

@@            Coverage Diff             @@
##            devel    #1256      +/-   ##
==========================================
+ Coverage   40.82%   41.34%   +0.51%     
==========================================
  Files          45       48       +3     
  Lines        9374     9954     +580     
==========================================
+ Hits         3827     4115     +288     
- Misses       5252     5541     +289     
- Partials      295      298       +3     

see 7 files with indirect coverage changes

Components	Coverage Δ
Go	40.84% <ø> (+0.02%)	⬆️
Receptorctl	49.31% <ø> (∅)