Unit tests are used to test code execution scenarios and ensure that they behave as expected. Crucially, unit tests allow you to refactor code and make new changes without breaking existing behaviors.
In smart contracts, unit tests are even more important, as once the contract is deployed, it is no longer possible to fix it unless you deploy a new contract. Because of this, it is of fundamental importance that you incorporate unit tests into all the smart contracts you write, looking ...
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