XCTest Hierarchy Class Hierarchy NSException _XCTestCaseInterruptionException NSObject XCTest XCTestCase XCTestSuite XCTestExpectation XCTestObservationCenter XCTestObserver XCTestLog XCTestProbe XCTestRun XCTestCaseRun XCTestSuiteRun XCUICoordinate XCUIDevice XCUIElement XCUIApplication XCUIElementQuery XCUIRemote Protocol References XCTestObservation XCUIElementAttributes XCUIElementTypeQueryProvider Constant References XCTestErrorCode XCUIDeviceButton XCUIElementType XCUIKeyModifierFlags XCUIRemoteButton XCUIUserInterfaceSizeClass _XCTAssertionType