solution

[Vall-Re]

No description provided.

[mateacademy-ai-mentor]

Review Summary

I am approving your solution because your Jest tests thoroughly cover all the required behaviors for restoreNames. You correctly call restoreNames(users) with an array and verify that firstName is restored when it is missing or explicitly set to undefined, including multiple user objects and both single-word and multi-word fullName values. You also assert that existing, valid firstName values are not changed, and you check that the function mutates the original users array rather than returning a new one. Additionally, you confirm that the function’s return value is undefined, which aligns with the task requirement that it perform in-place updates only. I don’t see any critical or blocking issues: the tests are clear, focused on the spec, and should give good feedback if the implementation is incorrect. Nice work designing targeted tests that map closely to each required behavior.

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