Is an opensource test framework for validating native and web apps. It can drive iOS, Android and Windows applications via the well-known Selenium WebDriver protocol.
http://www.clemensreijnen.nl/post/2017/10/27/test-windows-applications-with-appium-and-javascript
http://www.clemensreijnen.nl/post/2017/10/27/test-windows-applications-with-appium-and-javascript