> For example, I've found that React + Enzyme + jsdom is a way to write frontend functional tests that are both fast and reliable I found that tests using Enzy

> For example, I've found that React + Enzyme + jsdom is a way to write frontend functional tests that are both fast and reliable I found that tests using Enzyme/testing-library are actually more than 4x slower than unit tests, and give you far worse debugging & increased flakiness.