During the review, did you look at which tests were written?

Yes, I always check during code review which tests have been written. It's important to ensure that test coverage is sufficient and that the tests genuinely verify the key functionality. Usually, we look for unit tests, integration tests, and if necessary, e2e tests. We also assess the quality of the tests: how stable, understandable, and maintainable they are. For example, if a new method is added in the code, there should be a corresponding unit test verifying its correctness.