Testing
SignalR hubs are straightforward to unit test by mocking IClientProxy and IHubContext, but testing the full WebSocket transport and client behavior requires integration tests. This guide covers xUnit hub tests, transport fallback testing, and Playwright WebSocket interception for end-to-end SignalR verification. SignalR is Microsoft's real-time
Testing
The .NET ecosystem has two mature approval/snapshot testing libraries: ApprovalTests.Net (the original) and Verify (the modern alternative with better async support and scrubbing). Both capture output to files and compare on subsequent runs. This guide covers both libraries with practical C# examples for NUnit and xUnit. Key Takeaways
Testing
SpecFlow is the .NET implementation of the Cucumber/Gherkin BDD framework. It integrates directly with MSTest, NUnit, and xUnit, making it a natural fit for .NET teams that want to practise behaviour-driven development without leaving the ecosystem. This guide covers everything from NuGet package installation through a working test