Summary

In this chapter, we spent time exploring Go’s newly introduced generics support. We learned the basic syntax for implementing generic code, including how to specify type constraints. We also looked at a quick comparison of generic code versus writing code using interfaces.

Then, we revisited the previously introduced technique of table-driven testing and learned how to modify it to support generic code, allowing us to write test cases that support different input types and values. We also learned how to make use of generics to easily write our own test utilities, promoting code reuse in test code as well as implementation code.

Finally, we summarized all of the tools and techniques we have explored throughout this book with 14 best practices divided into 3 categories: development, testing, and culture. Implementing and maintaining a comprehensive testing strategy requires effort throughout the entire product and engineering organization.