I read your comment "Because they can find bugs and errors which unit tests cannot." to suggest that unit tests cannot find bugs. You probably meant "Because t

I read your comment "Because they can find bugs and errors which unit tests cannot." to suggest that unit tests cannot find bugs. You probably meant "Because they can find bugs and errors that unit tests cannot." to remove the ambiguity. tl;dr, I am illiterate; but a little change to the original comment could make it easier.