dotnet-testing-advanced-xunit-upgrade-guide

To migrate xUnit from 2.x to 3.x, update package references to xunit.v3, remove obsolete APIs, and adapt async void methods to async Task. Follow a comprehensive migration plan to update project files and test pipelines.

Breaking changes in xUnit 3 include obsolete API removals and updates to async void, IAsyncLifetime, Skippable attributes, and custom DataAttributes. Reviewing migration samples helps identify and handle these breaking changes effectively.

xUnit 3 handles async test methods by requiring migrations from async void to async Task and updating IAsyncLifetime implementations. Use provided code migration patterns to adapt async usage and ensure test stability.

Yes, you can use custom DataAttributes and Skippable attributes with xUnit 3 by applying specific code migration patterns. The upgrade guide details how to adapt these attributes to comply with the new test discovery mechanisms.

The best way to validate an xUnit 3 upgrade is by using an included upgrade-checklist and template-driven validation. Apply changes to your project, run tests, and verify against migration samples to ensure minimal risk.

Limitations when upgrading xUnit to 3.x include potential instability from unhandled breaking changes in test discovery and async usage. Mitigate risks by following a structured migration plan and validating with provided checklists.