Exactly. IMO it is the task of the developer to provide some means to show correctness of her/his code changes. Most of the the time that would be unit- or inte

Exactly. IMO it is the task of the developer to provide some means to show correctness of her/his code changes. Most of the the time that would be unit- or integration tests. When I receive a PR where tests could have been added but they are absent and the code is not trivial, I will not approve it, simple as that.