The Three Stages of TDD: Red, Green, and Refactor
Explore the three essential stages of test-driven development: red, green, and refactor. This lesson helps you understand how to write failing tests, develop minimum code to pass tests, and improve your codebase, ensuring clean and maintainable .NET applications through an iterative cycle.
At the heart of TDD is the red-green-refactor process—a powerful iterative cycle that guides developers in creating robust and maintainable code. In this lesson, we’ll explore the three steps of the TDD cycle: red, green, and refactor, and we’ll also learn how they contribute to the effectiveness of this development approach.
Step 1: Red (writing the test)
The first step in the TDD process is to write a failing test. This initial test describes the desired behavior of a specific feature or functionality. By writing the test before actually implementing the code, developers gain a clear understanding of the requirements and expectations.
The test is intentionally written to initially fail because there is not yet any ...