Writing tests is a significant part of the development process, especially in Ruby and Rails community. But usually, we do not care too much about tests' code organization, optimization, conventions, etc. – all these lovely things we always do with our application code. Until we realize that our whole test suite or its parts take too much time to run (or even launch in case of Rails). I want to share some tips & tricks on how to make your tests run faster, look prettier and be maintainable.