Testing: Patterns and Best Practices
It has been a long journey; congratulations on making it this far in this book! Throughout the first nine chapters of this book, we have explored the intricate world of JavaScript and Node.js. We understood how the event loop works and how to fully leverage JavaScript’s asynchronous nature in Node.js through events, callbacks, promises, async/await, and streams. We learned various techniques and design patterns to build scalable, maintainable, and reliable software. We covered creational patterns to manage object instantiation, structural patterns to assemble objects and classes into larger structures, and behavioral patterns to define how objects interact. This robust foundation has prepared us for the next critical step: ensuring our code behaves as expected through comprehensive testing.
Even the most carefully designed code is not immune to bugs. As Edsger W. Dijkstra, one of the most influential figures in the history of software...
