iOS Automation XCTest

XCTest :   1. XCTest  is an iOS native framework for unit testing UI testing of your project.  XCTest  mainly focuses on functional testing such as UI Elements testing and Some Static data.    2. XCTest  uses  id's  of elements use test appearance.  Id's  nothing but names of UI Elements appears on the application.   What can Test?   1. UI Elements of your application.   2. Static data displayed in your application.   3. The position of UI Elements.   4. Web pages.   What can't Test?   1. Can't access other applications like external  application ( Safari,  Gmail , Web application etc.,)   2. Not possible to access two devices at a time.   3. The required manual effort to check application behaviour in offline  mode ( Without internet)   4. Not possible to check for spinner, ribbon messages.   ...