Wizeline Academy - 2021 React Bootcamp

Please refere to the following GIST for further instructions

Code sandbox: https://codesandbox.io/s/core-concepts-and-styling-evtvz

Mini-Challenge 2: Intro to Testing

Answer the following questions first

1. Using create-react-app, what do we need to set up for testing? A: create-react-app comes with Jest and react-testing-library by default, but in order for Jest to locate them they need to have one of the following conventions:

   • Files with .js suffix in __tests__ folders, files with .test.js or .spec.js. Jest can also be paired with other testing libraries/utilities like Enzyme but those must me installed using yarn add or npm install.

2. What components are worth to test in your development? A: In my opinion it would be components that have some kind of interaction that can be mimicked and function used.

3. Can you apply TDD once you already created components? A: Yes, the concept of TDD is to test first (create failing test) then make those test pass and finally refactor, so when adding new change to that component one can start using TDD, providing little by little more more of the TDD advantages. TDD is a cycle that is best done in chunks.