The WPF team at Microsoft is going give us “WPF Application Quality Guide”. They plan to release the Guide in stages, updating and fine-tuning the content, based on feedback provided by audiences.

Current version is 0.2, this version contains -as specified in the link above- more examples that illustrate how to find the AutomationElement object by using UI Automation; introduction to the WPF programming stack and software testing; high level overview of test methodology, planning, and strategies; visual verification testing; media testing; verification of animations and other transitions; performance best practices resources; security testing considerations; a list of tools for creating, debugging, and testing WPF applications; and additional topics in the Appendix about resources for WPF data binding and debugging, and about WPF interoperability with Win32 and Windows Forms.