magicianred / bunit

A testing library for Blazor Components. You can easily define components under test in C# or Razor syntax and verify outcome using semantic HTML diffing/comparison logic. You can easily interact with and inspect components, trigger event handlers, provide cascading values, inject services, mock IJSRuntime, and perform snapshot testing.

bUnit - a testing library for Blazor components

bUnit is a testing library for Blazor Components. Its goal is to make it easy to write comprehensive, stable unit tests. With bUnit, you can:

• Setup and define components under tests using C# or Razor syntax
• Verify outcomes using semantic HTML comparer
• Interact with and inspect components as well as trigger event handlers
• Pass parameters, cascading values and inject services into components under test
• Mock IJSRuntime, Blazor authentication and authorization, and others

bUnit builds on top of existing unit testing frameworks such as xUnit, NUnit, and MSTest, which run the Blazor component tests in just the same way as any normal unit test. bUnit runs a test in milliseconds, compared to browser-based UI tests which usually take seconds to run.

Go to bUnit.dev to learn more.

NuGet Downloads

bUnit is available on NuGet in various incarnations. Most should just pick the bUnit package:

Name	Description	NuGet Download Link
bUnit	Includes the bUnit.core and bUnit.web packages.
bUnit.core	Core library that enables rendering a Blazor component in a test context.
bUnit.web	Adds support for testing Blazor components for the web. This includes bUnit.core.
bUnit.template	Template, which currently creates xUnit-based bUnit test projects only

To get started, head to the getting started documentation to learn more.

Sponsors

A huge thank you to the sponsors of my work with bUnit. The higher tier sponsors are:

Syncfusion

Progress-Telerik

Hassan Rezk Habib

Contributors

Shout outs and a big thank you to all the contributors to the library, including those that raise issues, provide input to issues, and those who send pull requests. Thank you!