Automatic Accessibility Audits on previews part 1 (#4322)

* setup target

* accessibility tests implementation

* removed ipad check

* pr improvements

* updated project

AccessibilityTests/Sources/Application.swift

@@ -0,0 +1,41 @@
+//
+// Copyright 2022-2024 New Vector Ltd.
+//
+// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+// Please see LICENSE files in the repository root for full details.
+//
+
+import XCTest
+
+enum Application {
+    static func launch(viewID: String) -> XCUIApplication {
+        checkEnvironments()
+        
+        let app = XCUIApplication()
+        
+        let launchEnvironment = [
+            "ACCESSIBILITY_VIEW": viewID
+        ]
+        
+        app.launchEnvironment = launchEnvironment
+        app.launch()
+        return app
+    }
+    
+    private static func checkEnvironments() {
+        let requirediPhoneSimulator = "iPhone17,3" // iPhone 16
+        let requiredOSVersion = 18
+        
+        let osVersion = ProcessInfo().operatingSystemVersion
+        guard osVersion.majorVersion == requiredOSVersion else {
+            fatalError("Switch to iOS \(requiredOSVersion) for these tests.")
+        }
+        
+        guard let deviceModel = ProcessInfo().environment["SIMULATOR_MODEL_IDENTIFIER"] else {
+            fatalError("Unknown simulator.")
+        }
+        guard deviceModel == requirediPhoneSimulator else {
+            fatalError("Running on \(deviceModel) but we only support \(requirediPhoneSimulator)")
+        }
+    }
+}