Testing REST APIs in Go: A Guide to Unit and Integration Testing with Go's Standard Testing Library

Introduction

This article is going to take you through how to use unit test and integration test to improve you development experience as you create rest apis in golang.

• Unit tests are designed to verify the functionality of the smallest, individual parts of an application, often focusing on a single function or method. These tests are conducted in isolation from other parts of the code to ensure each component works as expected on its own.




• Integration tests, on the other hand, assess how different modules or components of the application work together. In this article, we’ll focus on integration testing for our Go application, specifically checking that it interacts correctly with a PostgreSQL database by successfully making and executing SQL queries.

This article assumes that you are familiar with golang and how to create rest api in golang the main focus will be on creating test for your routes (unit tests) and testing your sql query functions (integration tests) for reference visit the