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

**(Select all that apply.)** What are the components of a test pyramid? 

(Select all that apply.) What are the components of a test pyramid?

Testing how components interoperate within a single module

**(Select all that apply.)** Which actions fall outside the scope of unit tests? 

(Select all that apply.) Which actions fall outside the scope of unit tests?

Nothing. This is already handled by the test code.

Exposing the internals to the test library

Installing the `Microsoft.AspNetCore.Mvc.Testing` NuGet package in the project under test

Adding the `WebApplicationFactory` to the application startup

What is performed in an application project to enable integration tests with the default application startup logic?

What is performed in an application project to enable integration tests with the default application startup logic?

Installing the `Microsoft.AspNetCore.Mvc.Testing` NuGet package in the test project

Installing the `Shouldly` NuGet package in the test project

Implementing the generic `IClassFixture` interface by the class containing the test methods

Configuring the host server to deploy the application under test on

**(Select all that apply.)** Which steps set up integration tests in .NET? 

(Select all that apply.) Which steps set up integration tests in .NET?

Using sandboxed versions of external APIs

Using mocked clients in the system under test

Having a separate test system with the deployed application

Which step should *not* be executed in the context of E2E testing?

Which step should not be executed in the context of E2E testing?

Test your knowledge of the different types of automated tests and their uses.

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: Different Types of Automated Tests