public void Constructor_Exception_NullStorageManager() { INavigationTarget navigationTarget = new MockNavigationTarget(); IViewFactory viewFactory = MockViewFactory.WithPageAndViewModel; ILifetimeManager lifetimeManager = new MockLifetimeManager(); IStorageManager storageManager = null; var e = Assert.Throws<ArgumentNullException>(() => new NavigationManager(navigationTarget, viewFactory, lifetimeManager, storageManager)); Assert.Equal("Value cannot be null.\r\nParameter name: storageManager", e.Message); Assert.Equal("storageManager", e.ParamName); }
public void Constructor_RegistersWithLifetimeManager() { MockLifetimeManager lifetimeManager = new MockLifetimeManager(); INavigationManager navigationManager = CreateNavigationManager(lifetimeManager: lifetimeManager); Assert.Contains((ILifetimeAware)navigationManager, lifetimeManager.RegisteredServices); }
// *** Private Methods *** private TestableNavigationManager CreateNavigationManager(INavigationTarget navigationTarget = null, IViewFactory viewFactory = null, INavigationStack navigationStack = null, ILifetimeManager lifetimeManager = null, IStorageManager storageManager = null, bool navigationTargetIsNull = false) { if (navigationTarget == null && !navigationTargetIsNull) navigationTarget = new MockNavigationTarget(); if (viewFactory == null) viewFactory = MockViewFactory.WithPageAndViewModel; if (navigationStack == null) navigationStack = new MockNavigationStack(); if (lifetimeManager == null) lifetimeManager = new MockLifetimeManager(); if (storageManager == null) storageManager = new MockStorageManager(); TestableNavigationManager navigationManager = new TestableNavigationManager(navigationTarget, viewFactory, navigationStack, lifetimeManager, storageManager); return navigationManager; }
public async Task RestoreNavigationStack_RestoresPreviousNavigationStackViaRoamingStorage() { IStorageManager storageManager = new MockStorageManager(); // --- First Instance --- { MockNavigationStack navigationStack = new MockNavigationStack(); MockLifetimeManager lifetimeManager = new MockLifetimeManager(); INavigationManager navigationManager = CreateNavigationManager(navigationStack: navigationStack, lifetimeManager: lifetimeManager, storageManager: storageManager); navigationManager.NavigationStorageType = NavigationStorageType.Roaming; // Navigate to some pages navigationStack.Add(new PageInfo("Page 1", null)); navigationStack.Add(new PageInfo("Page 2", null)); // Suspend the application lifetimeManager.Suspend(); } // --- Second Instance --- { MockNavigationStack navigationStack = new MockNavigationStack(); INavigationManager navigationManager = CreateNavigationManager(navigationStack: navigationStack, storageManager: storageManager); navigationManager.NavigationStorageType = NavigationStorageType.Roaming; // Restore the navigation stack bool success = await navigationManager.RestoreNavigationStack(); // Assert that the current page is restored from storage Assert.Equal(true, success); string[] pageNames = navigationStack.Select(page => page.PageName).ToArray(); Assert.Equal(new string[] { "Page 1", "Page 2" }, pageNames); } }