Summary
In this chapter, we have defined what TDD is and what it is not. We tried to relate TDD to simple everyday tasks such as cleaning certain parts of your home. By trying to clear up common misconceptions about TDD, hopefully, we will have a clearer understanding of what TDD is. TDD is a process; it’s not solely about writing unit tests and automated tests.
We also covered why we would want to use TDD when developing PHP applications. TDD helps us develop cleaner, decoupled, maintainable codes, and it helps us be more confident that we won’t introduce regressions whenever we release codes, thanks to the automated test coverage that is inherently built by following TDD.
In the next chapter, we will start building the example project by coming up with a simple hypothetical business challenge first and making sense of what needs to be built to solve the problem.
