RainbowDriver is an attempt to implement the Selenium JSON Wire Protocol for WinJS / Windows 8 applications (formerly known as Metro).
The project is very early stages, but we plan to grow fast.
Help is appreciated, specially with documentation. Reach us out in the issues or via email.
This is the component that runs inside your WinJS app after instrumentation. It has something similar to the selenium atoms (i.e. click events) and communication with rainbowdriver-server.