FBSimulatorControl Overview
A Mac OS X library for managing, booting and interacting with multiple iOS Simulators simultaneously. FBSimulatorControl is built by the engineers at Facebook and can simultaneously launch iPhone, iPad, watchOS and tvOS simulators, making if perfect for running end-to-end tests. It can boot Simulators via Xcode's Simulator.app or by launching directly with CoreSimulator. Direct launch supports video recording and fetching screenshots and crashlogs.