Summary

In this chapter, we've looked at technical debt, its causes, consequences, and ways to prevent it. Then, we introduced TDD as a process to avoid technical debt; we outlined its benefits, and how to implement it in your workflow. In Chapter 5, Writing End-to-End Tests and Chapter 6, Storing Data in Elasticsearch, we will cover in more depth the different types of tests (unit, integration, and E2E / acceptance tests).

Good code, whatever its definition, takes less time to write than bad code in the long run. It would be wise to realize this fact and have the discipline to build a strong foundation from the get-go. You can build a house on weak foundations, and it may stand for a hundred years, but build a skyscraper on a weak foundation, it'll come tumbling down quicker than you can imagine.