A test function name should begin with the word Test.Keep your test files in the same directory as the function to be tested.Before we begin, I’ll have some tips for you about writing tests. In this section, I’ll show you some examples of writing unit testing in Go. Testify is like an extension for the Go standard test package to do all those things I have mentioned (yes, you need the standard test package in order to use Testify).

Good question! Go standard test package does a decent job in testing but it still lacks some useful functionality like assertion, mocking, and test suite. But Go already has a standard test package! Why would we need another library for writing tests? Go code (golang) set of packages that provide many tools for testifying that your code will behave as you intend. The lack of tests could introduce bugs in your application that could affect user experience or worse, breaking the app…Yikes! A package called “Testify” I’ve seen a lot of programmers who don’t write tests especially unit tests. Unit testing ensures that everything works as expected and also could prevent or detect bugs before they slip into production. Simple! To make sure that nothing breaks when you alter the code. I’ll list some useful sources for you for further readings about unit testing at the end of this article. I’m not going to explain what is unit testing because it will be out of this article’s context.

Moreover, unit testing has a lot of advantages such as improving the quality of code, providing documentation, also the code can be tested individually and doesn’t require another module in order for it to work, etc. The purpose of it is to validate that any piece of code is always working as expected. Unit testing is a way of writing tests for the individual components (aka, the smallest part) of a program.

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