Use sinon syntax sugar for promises.

[JimiC]

Changes proposed:

• Add
• Delete

I now know Sinon better.

[codecov]

Codecov Report

Merging #1504 into master will not change coverage.
The diff coverage is 100%.

@@          Coverage Diff           @@
##           master   #1504   +/-   ##
======================================
  Coverage     100%    100%           
======================================
  Files          48      48           
  Lines        2621    2621           
  Branches      133     133           
======================================
  Hits         2621    2621

Impacted Files	Coverage Δ
test/init/projectAutoDetection.test.ts	100% <100%> (ø)	⬆️

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