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In this article we will learn about Test Driven Development in .NET
Test-Driven Development (TDD) is an approach for software development that says that we should write a test before writing a single line of code. This approach will force us to think about the requirements and how to validate the code against it. It also makes our code clean. If we write the code without testing then it will definitely generate bugs that would need to revisit the code to fix those bugs. According to “TDD is not about Testing”, TDD is a method of building the software with the functionality it actually needs and not with what the programmer thinks it probably would have. It might appear somewhat counter intuitive at the beginning, but it not only makes sense, it also quickly becomes a natural and elegant way to develop software.Test-Driven Development revolves around a short iterative development cycle. It can basically be summarized in the following four steps:
Now we can say that TDD is a way to code what is needed, not what might be. TDD allows us to test quickly and efficiently the system after introducing any changes in existing functionality or a completely new function. It also allows a programmer to focus on the task at hand since the first goal is to make the test pass.Visual Studio supports the concept of TDD through its unit testing framework. To show this I would create a Windows class library for performing math functions, such as addition and subtraction. Create a blank solution and add a Class library as LibTDD. Now add a new unit test project to the solution file. It will add a class file to our unit test project as in the following:
.NET Standard-9011