If you have a large project with the need for flexibility and customization then Mocha is probably the choice for you. If you have a smaller project and don’t need the extra setup and configuration up front, Jest is probably the better option.

References

  • https://blog.usejournal.com/jest-vs-mocha-whats-the-difference-235df75ffdf3
  • https://medium.com/airbnb-engineering/unlocking-test-performance-migrating-from-mocha-to-jest-2796c508ec50