add covarage

[dayyass]

Closes #9

[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (develop@5f43689). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             develop      #59   +/-   ##
==========================================
  Coverage           ?   89.22%           
==========================================
  Files              ?       27           
  Lines              ?      826           
  Branches           ?       67           
==========================================
  Hits               ?      737           
  Misses             ?       76           
  Partials           ?       13           

Flag	Coverage Δ
unittests	89.22% <0.00%> (?)

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