Tell me about test cases — what was their state, how often did you write and update them?

Test cases are usually up-to-date if they are regularly maintained and updated along with changes in the product. I wrote test cases at each stage of development, especially when adding new features or fixing bugs.

Updating test cases occurs when requirements, interfaces, or logic change to reflect the current implementation. The frequency of updates depends on the intensity of changes in the project — it usually happens as needed, but not less than at each release.

It is important that test cases are understandable, reproducible, and cover both positive and negative scenarios. Automation helps keep them current and speeds up regression testing.