Fuzzing: the complexities of auto-generated tests

Fuzzing is not quite a new word in QA, but it is popular and promoted. The popularity is based on natural laziness, deliberate caution of security specialists, as well as the tools experience. And though fuzzing doesn`t replace either unit or stress testing, it is an essential tool in the arsenal of possible approaches. Now let`s climb under its hood, go through all its limitations and deal with the applicability problems.