New notifications section in settings (#1273)

UnitTests/Sources/NotificationManager/NotificationManagerTests.swift

@@ -179,8 +179,12 @@ final class NotificationManagerTests: XCTestCase {
 }
 
 extension NotificationManagerTests: NotificationManagerDelegate {
-    func authorizationStatusUpdated(_ service: ElementX.NotificationManagerProtocol, granted: Bool) {
-        authorizationStatusWasGranted = granted
+    func registerForRemoteNotifications() {
+        authorizationStatusWasGranted = true
+    }
+    
+    func unregisterForRemoteNotifications() {
+        authorizationStatusWasGranted = false
     }
     
     func shouldDisplayInAppNotification(_ service: ElementX.NotificationManagerProtocol, content: UNNotificationContent) -> Bool {

UnitTests/Sources/NotificationManager/UserNotificationCenterSpy.swift

@@ -36,4 +36,9 @@ class UserNotificationCenterSpy: UserNotificationCenterProtocol {
     func setNotificationCategories(_ categories: Set<UNNotificationCategory>) {
         notificationCategoriesValue = categories
     }
+    
+    var authorizationStatusValue: UNAuthorizationStatus?
+    func authorizationStatus() async -> UNAuthorizationStatus {
+        authorizationStatusValue ?? UNAuthorizationStatus.denied
+    }
 }

UnitTests/Sources/NotificationSettingsScreenViewModelTests.swift

@@ -0,0 +1,50 @@
+//
+// Copyright 2023 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import XCTest
+
+@testable import ElementX
+
+@MainActor
+class NotificationSettingsScreenViewModelTests: XCTestCase {
+    private var viewModel: NotificationSettingsScreenViewModelProtocol!
+    private var context: NotificationSettingsScreenViewModelType.Context!
+    private var appSettings: AppSettings!
+    private var userNotificationCenter: UserNotificationCenterMock!
+    
+    @MainActor override func setUpWithError() throws {
+        AppSettings.reset()
+        
+        userNotificationCenter = UserNotificationCenterMock()
+        userNotificationCenter.authorizationStatusReturnValue = .authorized
+        appSettings = AppSettings()
+        viewModel = NotificationSettingsScreenViewModel(appSettings: appSettings,
+                                                        userNotificationCenter: userNotificationCenter)
+        context = viewModel.context
+    }
+    
+    func testEnableNotifications() {
+        appSettings.enableNotifications = false
+        context.send(viewAction: .changedEnableNotifications)
+        XCTAssertTrue(appSettings.enableNotifications)
+    }
+    
+    func testOptOut() {
+        appSettings.enableNotifications = true
+        context.send(viewAction: .changedEnableNotifications)
+        XCTAssertFalse(appSettings.enableNotifications)
+    }
+}