// *** 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);
}
// *** Constructors ***
public MockNavigationBase(INavigationStack navigationStack = null)
{
if (navigationStack == null)
navigationStack = new MockNavigationStack();
this.NavigationStack = navigationStack;
}
public void Constructor_WithViewFactoryAndNavigationStack_ThrowsException_WhenViewFactoryIsNull()
{
INavigationStack navigationStack = new MockNavigationStack();
var e = Assert.Throws<ArgumentNullException>(() => new TestableSettingsPaneManager(null, navigationStack));
Assert.Equal("Value cannot be null.\r\nParameter name: viewFactory", e.Message);
Assert.Equal("viewFactory", e.ParamName);
}
public void GoBackTo_Exception_IfPageNameIsEmpty()
{
MockNavigationStack navigationStack = new MockNavigationStack();
var e = Assert.Throws<ArgumentException>(() => navigationStack.GoBackTo(""));
Assert.Equal("The argument cannot be null or an empty string.\r\nParameter name: pageName", e.Message);
Assert.Equal("pageName", e.ParamName);
}
public void NavigateTo_WithPageName_NavigatesToPage()
{
MockNavigationStack navigationStack = new MockNavigationStack();
navigationStack.NavigateTo("Page 1");
Assert.Equal(new string[] { "Page 1" }, navigationStack.Select(e => e.PageName).ToList());
Assert.Equal(new object[] { null }, navigationStack.Select(e => e.GetArguments<string>()).ToList());
}
public void GoBackTo_NavigatesBackToPage()
{
MockNavigationStack navigationStack = new MockNavigationStack();
navigationStack.NavigateTo("Page 1");
navigationStack.NavigateTo("Page 2");
navigationStack.NavigateTo("Page 3");
navigationStack.NavigateTo("Page 4");
navigationStack.GoBackTo("Page 2");
Assert.Equal(new string[] { "Page 1", "Page 2" }, navigationStack.Select(e => e.PageName).ToList());
}
public async Task RestoreNavigationStack_NavigatesToHomePageIfNoPreviousNavigationStack()
{
MockNavigationStack navigationStack = new MockNavigationStack();
INavigationManager navigationManager = CreateNavigationManager(navigationStack: navigationStack);
navigationManager.NavigationStorageType = NavigationStorageType.Local;
bool success = await navigationManager.RestoreNavigationStack();
Assert.Equal(false, success);
string[] pageNames = navigationStack.Select(page => page.PageName).ToArray();
Assert.Equal(new string[] { "Home" }, pageNames);
}
public async Task RestoreNavigationStack_NavigatesToHomePageIfStateFileIsCorrupt()
{
MockNavigationStack navigationStack = new MockNavigationStack();
MockStorageManager storageManager = new MockStorageManager();
INavigationManager navigationManager = CreateNavigationManager(navigationStack: navigationStack, storageManager: storageManager);
navigationManager.NavigationStorageType = NavigationStorageType.Local;
InvalidNavigationState state = new InvalidNavigationState();
await storageManager.StoreAsync <InvalidNavigationState>(ApplicationData.Current.LocalFolder, "Okra_Navigation_NavigationManager.xml", state);
bool success = await navigationManager.RestoreNavigationStack();
Assert.Equal(false, success);
string[] pageNames = navigationStack.Select(page => page.PageName).ToArray();
Assert.Equal(new string[] { "Home" }, pageNames);
}
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);
}
}
public void SettingsPaneBackClick_GoesBackInNavigationStack()
{
MockNavigationStack navigationStack = new MockNavigationStack();
TestableSettingsPaneManager settingsPaneManager = CreateSettingsPaneManager(navigationStack: navigationStack);
navigationStack.NavigateTo(new PageInfo("Page 1", null));
navigationStack.NavigateTo(new PageInfo("Page 2", null));
BackClickEventArgs e = new BackClickEventArgs() { Handled = false };
settingsPaneManager.CallOnSettingsPaneBackClick(e);
string[] pageNames = navigationStack.Select(page => page.PageName).ToArray();
Assert.Equal(new string[] { "Page 1" }, pageNames);
}
public void SettingsPaneBackClick_HandlesEvent()
{
MockNavigationStack navigationStack = new MockNavigationStack();
TestableSettingsPaneManager settingsPaneManager = CreateSettingsPaneManager(navigationStack: navigationStack);
navigationStack.NavigateTo(new PageInfo("Page 1", null));
navigationStack.NavigateTo(new PageInfo("Page 2", null));
BackClickEventArgs e = new BackClickEventArgs() { Handled = false };
settingsPaneManager.CallOnSettingsPaneBackClick(e);
Assert.Equal(true, e.Handled);
}
public void FlyoutClosed_ClearsNavigationStack()
{
MockNavigationStack navigationStack = new MockNavigationStack();
TestableSettingsPaneManager settingsPaneManager = CreateSettingsPaneManager(navigationStack: navigationStack);
navigationStack.NavigateTo(new PageInfo("Page 1", null));
navigationStack.NavigateTo(new PageInfo("Page 2", null));
settingsPaneManager.CallOnSettingsFlyoutClosed();
string[] pageNames = navigationStack.Select(page => page.PageName).ToArray();
Assert.Equal(new string[] { }, pageNames);
}
public void NavigateTo_WithPageName_Exception_IfPageNameIsNull()
{
MockNavigationStack navigationStack = new MockNavigationStack();
var e = Assert.Throws<ArgumentException>(() => navigationStack.NavigateTo((string)null));
Assert.Equal("The argument cannot be null or an empty string.\r\nParameter name: pageName", e.Message);
Assert.Equal("pageName", e.ParamName);
}
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);
}
}
public async Task RestoreNavigationStack_NavigatesToHomePageIfStateFileIsCorrupt()
{
MockNavigationStack navigationStack = new MockNavigationStack();
MockStorageManager storageManager = new MockStorageManager();
INavigationManager navigationManager = CreateNavigationManager(navigationStack: navigationStack, storageManager: storageManager);
navigationManager.NavigationStorageType = NavigationStorageType.Local;
InvalidNavigationState state = new InvalidNavigationState();
await storageManager.StoreAsync<InvalidNavigationState>(ApplicationData.Current.LocalFolder, "Okra_Navigation_NavigationManager.xml", state);
bool success = await navigationManager.RestoreNavigationStack();
Assert.Equal(false, success);
string[] pageNames = navigationStack.Select(page => page.PageName).ToArray();
Assert.Equal(new string[] { "Home" }, pageNames);
}
public void NavigateTo_WithTypeAndParameter_Exception_IfPageNameIsNull()
{
MockNavigationStack navigationStack = new MockNavigationStack();
var e = Assert.Throws<ArgumentNullException>(() => navigationStack.NavigateTo((Type)null, "Parameter"));
Assert.Equal("Value cannot be null.\r\nParameter name: pageName", e.Message);
Assert.Equal("pageName", e.ParamName);
}
public async Task RestoreNavigationStack_NavigatesToHomePageIfNoPreviousNavigationStack()
{
MockNavigationStack navigationStack = new MockNavigationStack();
INavigationManager navigationManager = CreateNavigationManager(navigationStack: navigationStack);
navigationManager.NavigationStorageType = NavigationStorageType.Local;
bool success = await navigationManager.RestoreNavigationStack();
Assert.Equal(false, success);
string[] pageNames = navigationStack.Select(page => page.PageName).ToArray();
Assert.Equal(new string[] { "Home" }, pageNames);
}
// *** 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;
}
// *** Private Methods ***
private TestableSettingsPaneManager CreateSettingsPaneManager(IViewFactory viewFactory = null, INavigationStack navigationStack = null)
{
if (viewFactory == null)
viewFactory = MockViewFactory.WithPageAndViewModel;
if (navigationStack == null)
navigationStack = new MockNavigationStack();
TestableSettingsPaneManager settingsPaneManager = new TestableSettingsPaneManager(viewFactory, navigationStack);
return settingsPaneManager;
}
public void NavigateTo_WithTypeAndParameter_NavigatesToPageWithFullTypeName()
{
MockNavigationStack navigationStack = new MockNavigationStack();
navigationStack.NavigateTo(typeof(MockNavigationBase.MockPage), "Parameter 1");
Assert.Equal(new string[] { MockNavigationBase.MOCKPAGE_NAME }, navigationStack.Select(e => e.PageName).ToList());
Assert.Equal(new object[] { "Parameter 1" }, navigationStack.Select(e => e.GetArguments<string>()).ToList());
}