Hypothesis is my favorite. I also use TestCheck.js [0] for JavaScript and RapidCheck for C++ [1], but the Hypothesis generators seem the smartest, and they're

Hypothesis is my favorite. I also use TestCheck.js [0] for JavaScript and RapidCheck for C++ [1], but the Hypothesis generators seem the smartest, and they're easy to customize. [0] http://leebyron.com/testcheck-js/api http://leebyron.com/testcheck-js/api [1] https://github.com/emil-e/rapidcheck https://github.com/emil-e/rapidcheck