Foundations of TDD in C# & xUnit: The Principles
An intro to Test Driven Development (TDD) in C# using xUnit. Covers TDD principles (Red/Green/Refactor), setup, and writing testable code using SOLID and dependency injection. Compares TDD with traditional approaches and examines impacts on code quality and development velocity.
Lessons and practices
Write a Test, Watch It Fail
Make the Test Pass
Refactor for Readability and Clarity
Write another failing test
Make it pass again
Refactor to use parameterized tests
Defining the first test for Shopping Cart totals
Make it pass
Write another failing test
Make the Cart Total Function Work
Refactor Your Cart Total Function
Make it Red
Make it Green
Refactor!
Understanding Testing with XUnit in C#
Use some Verifiers
Refactor Test Setup with Constructors
Group Email Tests Using Nested Classes
Expect an exception
Write an async test
Write your first failing test
Make it pass
Refactor
Write a test that expects logging (Red)
Make the tests pass
Refactor the UserManager Class
Refactor Tests with AAA Pattern
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