unit test jest

Question 1

What are unit tests?

Answer 1

a self contained small piece of code that can be tested

Question 2

Why is it important to write unit tests?

Answer 2

good way to debug your code and to refactor your code

Question 3

What code should be tested with a unit test? What code is not well suited for unit tests?

Answer 3

a small unit should be tested with a unit test and a large block of code is not well suited for unit tests

Question 4

What is Jest? What are some other popular JavaScript unit testing frameworks?