Add tests Tower of Hanoi

[lorduke22]

• [x] I have read CONTRIBUTING.md.
• [x] This pull request is all my own work -- I have not plagiarized it.
• [x] All filenames are in PascalCase.
• [x] All functions and variable names follow Java naming conventions.
• [x] All new algorithms have a URL in their comments that points to Wikipedia or other similar explanations.
• [x] All new code is formatted with clang-format -i --style=file path/to/your/file.java

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 69.05%. Comparing base (131e538) to head (771b842).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #5736      +/-   ##
============================================
+ Coverage     69.04%   69.05%   +0.01%     
  Complexity     4662     4662              
============================================
  Files           622      622              
  Lines         17148    17148              
  Branches       3308     3308              
============================================
+ Hits          11840    11842       +2     
+ Misses         4855     4854       -1     
+ Partials        453      452       -1     

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[siriak]

Please resolve merge conflicts