What you'll learn

Blazor's unified rendering model gives components multiple ways to behave — during static SSR, after hydration, under different auth states, and while loading data. Without automated tests, verifying this behavior means clicking through the browser manually. In this course, Testing Blazor Components and Applications with bUnit, you'll gain the ability to write reliable, maintainable component tests that cover all of these scenarios. First, you'll explore what component testing is and how to set up bUnit with xUnit for a .NET 10 Blazor project. Next, you'll discover how to test rendered markup, parameters, user interactions, two-way binding, and component lifecycle behavior. Finally, you'll learn how to mock services, test render-mode-aware components, and validate authentication and authorization UI without live identity providers. When you're finished with this course, you'll have the skills and knowledge of Blazor component testing needed to build test suites that give you confidence to refactor and ship.