This is a type of test ensuring that a user-level function works as expected. In fact, even if each unit of code is working correctly in an isolated environment, you may discover some issues when you put them together to build your application. Unlike unit tests, integration tests help to discover any issues when the units of code are assembled together to create more complex components. Unit tests ensure that an isolated component of a software application works as expected. This type of test focuses on testing a unit of code: a building block of a software application, such as a function or a class.
Let's take a quick look at the definitions of the most common ones: Traditionally, a few different types of automated tests are available. It is a repetitive task, and where there is a repetitive task, you need automation. Manual testing is a very demanding task, not only for performing the tests themselves but because you have to execute them a huge number of times. You have to make sure not only that your changes work as intended, but also that the untouched code continues to do its expected job. It seems a trivial statement, but sometimes this statement is underrated, especially when you change your existing codebase. Testing ensures that your application is doing what it's meant to do. The full code you are going to develop throughout the article is available in this GitHub repository. You will learn the basics of automated tests and how to create unit and integration tests. TL DR: This article will guide you in creating automated tests with xUnit for your C# applications.