Testify is a popular testing toolkit for the Go programming language. It provides a wide range of assertion functions, test suite support, and mocking capabilities, making it a powerful tool for testing Go applications. Testify aims to simplify the process of writing tests and improve the quality of test coverage in Go applications.

There are a few words, like unit testing, integration testing, mocking, dependency injection, object oriented proramming which are all related to each other. In this post I'm going to talk how, and then it will start to make sense to you.