Tests
add jest tests to each of components Check the Testing section of this article: https://medium.com/groceristar/things-that-should-read-and-use-javascript-intern-at-groceristar-april-18-collection-bd6541e9ae28
add jest tests to each of components Check the Testing section of this article: https://medium.com/groceristar/things-that-should-read-and-use-javascript-intern-at-groceristar-april-18-collection-bd6541e9ae28