Refactor tests

[tkf]

No description provided.

[codecov]

Codecov Report

Merging #30 (c166fc0) into master (3aa4a56) will decrease coverage by 0.30%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #30      +/-   ##
==========================================
- Coverage   81.79%   81.48%   -0.31%     
==========================================
  Files          12       12              
  Lines        1329     1329              
==========================================
- Hits         1087     1083       -4     
- Misses        242      246       +4     

Flag	Coverage Δ
unittests	81.48% <ø> (-0.31%)	⬇️

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Impacted Files	Coverage Δ
src/dict.jl	85.04% <0.00%> (-0.86%)	⬇️

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