adding test

[dana-yaish]

No description provided.

[codecov]

Codecov Report

Base: 79.31% // Head: 70.83% // Decreases project coverage by -8.47% ⚠️

Coverage data is based on head (3d58576) compared to base (c3c029a).
Patch coverage: 100.00% of modified lines in pull request are covered.

❗ Current head 3d58576 differs from pull request most recent head fea5910. Consider uploading reports for the commit fea5910 to get more accurate results

Changes have been made to critical files, which contain lines commonly executed in production. Learn more

Additional details and impacted files

@@            Coverage Diff             @@
##             main       #9      +/-   ##
==========================================
- Coverage   79.31%   70.83%   -8.48%     
==========================================
  Files           2        2              
  Lines          29       24       -5     
==========================================
- Hits           23       17       -6     
- Misses          6        7       +1     

Impacted Files	Coverage Δ
app/test_calculator.py	100.00% <100.00%> (ø)
app/calculator.py Critical	53.33% <0.00%> (-6.67%)	⬇️

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