CSharp-Coder

Learn C# unit testing with xUnit and test-driven development in this complete tutorial. Master TDD, Fact, Theory, mocking, and best practices. Start now! If you want to write reliable, bug-resistant .NET applications, mastering C# unit testing is one of the highest-return skills you can develop. In this complete tutorial you'll learn C# unit testing with xUnit — the most popular testing framework in the modern .NET ecosystem — and how to combine it with test-driven development (TDD) to design cleaner, more maintainable code. Whether you're a beginner searching for "how to write unit tests in C#," an intermediate developer looking for xUnit best practices, or a senior engineer refining your TDD workflow, this guide has you covered with practical, runnable examples. What Is C# Unit Testing and Why Does It Matter? A unit test verifies that a small, isolated piece of code — usually a single method — behaves exactly as expected. Instead of manually running...