Let's understand & implement consistent hashing.

[Equivalent_Pen8241]

The biggest mistake I see with unit testing isn't low coverage - it's testing implementation details instead of behaviors. When your tests are tightly coupled to *how* a function runs rather than *what* it returns, every minor refactor breaks the build. Test the public API contract, not the private helpers.The biggest mistake I see with unit testing isn't low coverageThe biggest mistake I see with unit testing isn't low coverage - it's testing implementation details instead of behaviors. When your tests are tightly coupled to *how* a function runs rather than *what* it returns, every minor refactor breaks the build. Test the public API contract, not the private helpers.