Every component is worth testing even if the test is simple. The test gives you confidence that the component works as expected, produce software with better quality and to do proper refactoring.
- It’s Very fast
- Simple configuration
- Helpful fail messages
- Awesome interactive watch mode that reruns only tests that are relevant to your changes
- It’s easy to assert, manipulate and traverse your React components outputs
- Convenient utilities to work with shallow rendering, static rendered markup or DOM rendering.
Check this tutorial for more details. It’s clean and easy to understand and detail oriented