One of the best practices for properly using snapshots is to commit them, so that others can code review the changes you’ve made to the expected output.

For this process to work smoothly your snapshots need to have a clean and highly readable output, that…

Snapshots are a great new way of testing UI components but their applicability can go beyond that, and they can be really useful in other contexts too.

Snapshot testing with React makes writing tests for UI components a much easier task, but as always there are some good rules to follow and be aware of when getting started with snapshots.

Since version 14 Jest introduced a feature called snapshot testing. Snapshot testing is a way to assert the result of a given test by generating a Json representation of its output.

Snapshot Testing how does it work?