Add missing httpapi package tests

[mthenw]

No description provided.

[codecov]

Codecov Report

Merging #401 into master will increase coverage by 1.08%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #401      +/-   ##
==========================================
+ Coverage   59.51%   60.59%   +1.08%     
==========================================
  Files          25       25              
  Lines        1477     1477              
==========================================
+ Hits          879      895      +16     
+ Misses        555      545      -10     
+ Partials       43       37       -6

Impacted Files	Coverage Δ
httpapi/httpapi.go	44.13% <0%> (+8.93%)	⬆️

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