This chapter has explored building out a component with some complex user interactions between the user interface and an API.
The shape that our code takes is often dependent on the order in which we add features. In our case, that ultimately took us down the "wrong" path with the design that we had corrected. Thankfully, our tests helped us do that without fear of functional regression.
Making the "wrong" decisions is a normal part of coding, and it's important we notice when it's time to try a different approach. Our tests help us admit when we're doing the wrong thing, rather than being stuck with our poor choices.
In the next chapter, we'll use tests to integrate React Router into our application. We'll revisit our CustomerSearch component by adding the ability to use the browser location bar to specify search criteria....
