Jest Setup
Get introduced with the Jest setup file and learn why it’s used.
We'll cover the following...
Adding a Jest setup file
Since this chapter’s project will have three components (Carousel
, CarouselButton
, and CarouselSlide
), it’s going to have three test files. Rather than duplicate the Enzyme configuration logic across all three, we should move that logic into a “setup file” that will only run once whenever Jest runs our tests.
Actually, we’re going to need two files. The setup file, and a Jest configuration to point to it. Let’s start with the configuration. By default, Jest looks for a file ...