Testing · Junior · Question 26 of 78

What does watch mode (`vitest` / `jest --watch`) do?

✓Correct answer: Reruns tests related to changed files on every save
2Records a video of the tests
3Watches production for errors

Explanation

Vitest starts in watch mode by default in a terminal and uses Vite's module graph to rerun only affected tests.

Further reading

Test yourself

Take the Testing · Junior quiz: questions and options are shuffled, and you get a review of your mistakes at the end.