A deep dive into unit testing in Go

Unit testing in Go is an essential practice for ensuring code correctness and preventing regressions during development. This tutorial outlines how to write unit tests using Go's built-in testing package, focusing on concepts such as table-driven tests, dependency injection, and code coverage. It demonstrates how to create and execute basic tests, naming conventions for test files, and methods for signaling test failures. The tutorial also covers advanced techniques like running specific tests using subtests, measuring code coverage, and visualizing coverage reports through HTML. Additionally, it emphasizes the importance of dependency injection for more flexible and testable code. Overall, the guide provides a comprehensive overview of unit testing in Go, highlighting its role in maintaining robust and reliable codebases.