Crius is a Step-based BDD build tool. It is the primary expression of the DSLs with JSX, all behavior and expected results can be defined as Step, and the declarative Step design makes it easy to quickly build test logic.
Reactant is a framework for React. It provides dependency injection, modular models, immutable state management, dynamic module and more. It's pluggable and testable. It also brings some new React development experiences.