Add mem leak test

[ladisgin]

Summary:

Checklist:

• The PR addresses a single issue. If it can be divided into multiple independent PRs, please do so.
• The PR is divided into a logical sequence of commits OR a single commit is sufficient.
• There are no unnecessary commits (e.g. commits fixing issues in a previous commit in the same PR).
• Each commit has a meaningful message documenting what it does.
• All messages added to the codebase, all comments, as well as commit messages are spellchecked.
• The code is commented OR not applicable/necessary.
• The patch is formatted via clang-format OR not applicable (if explicitly overridden leave unchecked and explain).
• There are test cases for the code you added or modified OR no such test cases are required.

[codecov-commenter]

Codecov Report

Merging #126 (4db817c) into main (390866f) will increase coverage by 0.00%.
The diff coverage is n/a.

❗ Current head 4db817c differs from pull request most recent head a42bbe1. Consider uploading reports for the commit a42bbe1 to get more accurate results

@@           Coverage Diff           @@
##             main     #126   +/-   ##
=======================================
  Coverage   66.43%   66.43%           
=======================================
  Files         215      215           
  Lines       29636    29636           
  Branches     6572     6572           
=======================================
+ Hits        19688    19690    +2     
+ Misses       7433     7432    -1     
+ Partials     2515     2514    -1     

see 3 files with indirect coverage changes