test: adds basic coverage for --preset flag and CHANGELOG output

[jbottigliero]

• Added this as part of the triage for presets flag doesn't work #720, it'll add some coverage but HOLD for verification from the reporter.

closes #720

[codecov-commenter]

Codecov Report

Merging #723 (9d295b8) into master (a61d8cf) will increase coverage by 0.07%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #723      +/-   ##
==========================================
+ Coverage   97.66%   97.73%   +0.07%     
==========================================
  Files          24       25       +1     
  Lines        1069     1106      +37     
==========================================
+ Hits         1044     1081      +37     
  Misses         25       25              

Impacted Files	Coverage Δ
test/preset.spec.js	100.00% <100.00%> (ø)

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