Chapter 6

1. Testing frameworks for C#:
   • NUnit: Widely used, supports parameterized tests, lacks some advanced features.
   • xUnit: Similar to NUnit but newer, promotes more modern testing practices, extensible.
   • MSTest: Integrated with Visual Studio, easy setup, but historically considered less flexible.
2. Best practices for unit tests in C#:
   • Isolation: Tests should be independent, not relying on the OOE.
   • Readability: Clearly express the intent of the test and use meaningful names.
   • Speed: Tests should run quickly, enabling frequent execution.
   • Maintainability: Regularly update tests to reflect changes in the code base.
3. Mocking data in unit tests:
   • Use mocking frameworks such as Moq or NSubstitute to create fake objects.
   • Mock external dependencies by providing controlled responses to method calls.
   • Focus on testing specific code units in isolation without invoking actual external services.
4. Code coverage analysis in Visual Studio 2022:
   • Code coverage: Measures the percentage of code lines executed...