Gain insights into using xUnit for TDD in .NET. Delve into fundamentals, advanced topics, mocking, the testing pyramid, and integration tests to develop high-quality software.

Test Driven development on .net and xunit.png

xunit.tar.gz

Basic Tests

Unit/Integration Tests

End-to-end Tests

Basic Tests with coverage

Unit/Integration Tests with coverage

Test-driven development (TDD) is a proven way of developing high-quality applications with clean and well-maintainable code. In this course, you will learn how to use the xUnit testing library to apply the principles of test-driven development on .NET.

You will start this course by reviewing the fundamentals of xUnit and how automated testing works on .NET. Then, you will practice the key TDD fundamentals. After this, you will move to more advanced topics, such as mocking, understanding the testing pyramid, running integration tests against hosted apps, etc.

By the end of the course, you will have learned how to develop high-quality software by following the TDD principles. You will also have learned how to use xUnit to write any automated tests supported by .NET.

Using xUnit for Test-Driven Development in .NET

Ensuring that tests cover all lines of code

Using as many parametrized test methods as possible

Which stage is essential for TDD?

It's a starting point and not the tests or the code.

All necessary tests are written, but no working code exists.

Some initial tests are written but there is not yet any working code.

The tests are written, but the tested code is not yet perfect.

What defines the red stage in TDD?

Both the tests and the code are fully complete.

Tests are complete, but the code only consists of skeleton methods.

The tests are written and pass, but the code needs optimization.

The tests are written and pass, and the code is in the most optimal state.

What defines the green stage of TDD?

The necessary tests are written, all pass, and the code is optimized as much as possible.

The feature is complete, and the tests pass, but some legacy code needs to be optimized.

It ensures that all existing code has good test coverage before you make it cleaner.

Verify whether the code needs to be optimized after the green stage and only optimize it if necessary.

What defines the refactor stage of the TDD process?

What defines the refactor stage of the TDD process?

Introduction to Automated Testing

Test-Driven Development

Assertions as a Key Part of Automated Tests

Different Types of Automated Tests

Mocking External Dependencies

Working with Code Coverage Metrics

Summary

Appendix

Quiz: TDD