Please find a demo implementation of the Tinder like swipe to select/reject feature in iOS 10 using Swift 3.1, RxSwift and the MVVM Application architecture.
In the interest of time the app also uses the MDCSwipeToChoose library.
To run the app in your enviroment please intstall CocoaPods and then run - pod install --repo-update
For unit test we have used iOS' inbuilt XCTest library including its Asynchronous test support libraries.