test(core-kernel): increase test coverage

[sebastijankuzner]

Summary

Solves #4028

Increase core-kernel coverage to 100 %.

Checklist

• Tests (if necessary)
• Ready to be merged

[lgtm-com]

This pull request fixes 2 alerts when merging a4fc10e into 956d629 - view on LGTM.com

fixed alerts:

• 2 for Missing await

[codecov]

Codecov Report

Merging #4032 into develop will increase coverage by 0.25%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           develop    #4032      +/-   ##
===========================================
+ Coverage    96.46%   96.72%   +0.25%     
===========================================
  Files          715      715              
  Lines        17235    17227       -8     
  Branches      2098     2089       -9     
===========================================
+ Hits         16626    16662      +36     
+ Misses         418      402      -16     
+ Partials       191      163      -28     

Flag	Coverage Δ
#functional	5.97% <0.00%> (+<0.01%)	⬆️
#integration	10.19% <0.00%> (+<0.01%)	⬆️
#unit	94.70% <100.00%> (+0.25%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ackages/core-kernel/src/services/config/watcher.ts	100.00% <ø> (+8.33%)	⬆️
...s/core-kernel/src/services/queue/drivers/memory.ts	100.00% <ø> (+2.50%)	⬆️
...l/src/services/search/standard-criteria-service.ts	100.00% <ø> (+9.18%)	⬆️
...core-kernel/src/services/validation/drivers/joi.ts	100.00% <ø> (+6.89%)	⬆️
packages/core-kernel/src/utils/ipc-handler.ts	100.00% <ø> (+18.18%)	⬆️
packages/core-kernel/src/utils/is-block-chained.ts	100.00% <ø> (+4.16%)	⬆️
packages/core-kernel/src/utils/search.ts	100.00% <ø> (+1.72%)	⬆️
...ap/service-providers/register-service-providers.ts	100.00% <100.00%> (+5.35%)	⬆️
...s/core-kernel/src/services/cache/drivers/memory.ts	100.00% <100.00%> (+5.71%)	⬆️
.../core-kernel/src/services/events/drivers/memory.ts	100.00% <100.00%> (+3.38%)	⬆️
... and 10 more

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[lgtm-com]

This pull request fixes 2 alerts when merging 222489c into 773eb8c - view on LGTM.com

fixed alerts:

• 2 for Missing await