You are developing a Windows Presentation Foundation (WPF) application. You are implementing a test strategy for the application. You need to ensure that the history of your testing session can be…

You are developing a Windows Presentation Foundation (WPF) application. You are implementing a test strategy for the application. You need to ensure that the history of your testing session can be rewound in the execution cycle so that the state of the application and events that occurred previously can be viewed. What should you use?