Summary

In this chapter, we covered all the unit testing essentials that we will need to get started with TDD in Go. We began by introducing Go modules and packages, as well as where test files are placed and how they declare their additional test packages. You learned about the most important methods in Go’s testing package and started writing some simple unit tests with it. Then, we explored ways to reduce code duplication by making use of setup and teardown functions, as well as how to better organize tests using subtests. Finally, we learned how to write and run benchmarks, which are an important part of any testing strategy.

In Chapter 3, Mocking and Assertion Frameworks, we will write more complicated tests, which require dependencies. We will explore some popular frameworks and begin to use them to write tests that are closer to real-world examples.