public void WhenRegionConstructed_SortComparisonIsDefault()
{
IRegion region = new Region();
Assert.IsNotNull(region.SortComparison);
Assert.AreEqual(region.SortComparison, Region.DefaultSortComparison);
}
public void WhenNavigatingAndBothViewAndDataContextImplementINavigationAware_ThenNavigatedIsInvokesOnNavigation()
{
// Prepare
var region = new Region();
Mock<FrameworkElement> mockFrameworkElement = new Mock<FrameworkElement>();
Mock<INavigationAware> mockINavigationAwareView = mockFrameworkElement.As<INavigationAware>();
mockINavigationAwareView.Setup(ina => ina.IsNavigationTarget(It.IsAny<NavigationContext>())).Returns(true);
Mock<INavigationAware> mockINavigationAwareDataContext = new Mock<INavigationAware>();
mockINavigationAwareDataContext.Setup(ina => ina.IsNavigationTarget(It.IsAny<NavigationContext>())).Returns(true);
mockFrameworkElement.Object.DataContext = mockINavigationAwareDataContext.Object;
var view = mockFrameworkElement.Object;
region.Add(view);
var navigationUri = new Uri(view.GetType().Name, UriKind.Relative);
var serviceLocatorMock = new Mock<IServiceLocator>();
serviceLocatorMock.Setup(x => x.GetInstance<IRegionNavigationJournalEntry>()).Returns(new RegionNavigationJournalEntry());
IServiceLocator serviceLocator = serviceLocatorMock.Object;
RegionNavigationContentLoader contentLoader = new RegionNavigationContentLoader(serviceLocator);
IRegionNavigationJournal journal = new Mock<IRegionNavigationJournal>().Object;
RegionNavigationService target = new RegionNavigationService(serviceLocator, contentLoader, journal);
target.Region = region;
// Act
target.RequestNavigate(navigationUri, nr => { });
// Verify
mockINavigationAwareView.Verify(v => v.OnNavigatedTo(It.Is<NavigationContext>(nc => nc.Uri == navigationUri)));
mockINavigationAwareDataContext.Verify(v => v.OnNavigatedTo(It.Is<NavigationContext>(nc => nc.Uri == navigationUri)));
}
public void WhenNavigatingWithQueryString_ViewIsActivated()
{
// Prepare
object view = new object();
Uri viewUri = new Uri(view.GetType().Name + "?MyQuery=true", UriKind.Relative);
IRegion region = new Region();
region.Add(view);
string regionName = "RegionName";
RegionManager regionManager = new RegionManager();
regionManager.Regions.Add(regionName, region);
var serviceLocatorMock = new Mock<IServiceLocator>();
serviceLocatorMock.Setup(x => x.GetInstance<IRegionNavigationJournalEntry>()).Returns(new RegionNavigationJournalEntry());
IServiceLocator serviceLocator = serviceLocatorMock.Object;
RegionNavigationContentLoader contentLoader = new RegionNavigationContentLoader(serviceLocator);
IRegionNavigationJournal journal = new Mock<IRegionNavigationJournal>().Object;
RegionNavigationService target = new RegionNavigationService(serviceLocator, contentLoader, journal);
target.Region = region;
// Act
bool isNavigationSuccessful = false;
target.RequestNavigate(viewUri, nr => isNavigationSuccessful = nr.Result == true);
// Verify
Assert.IsTrue(isNavigationSuccessful);
bool isViewActive = region.ActiveViews.Contains(view);
Assert.IsTrue(isViewActive);
}
public void WhenRegionHasMultipleViews_ThenViewsWithMatchingFullTypeNameAreConsidered()
{
// Arrange
var serviceLocatorMock = new Mock<IServiceLocator>();
var region = new Region();
var view1 = new TestView();
var view2 = "view";
region.Add(view1);
region.Add(view2);
var navigationContext = new NavigationContext(null, new Uri(view2.GetType().FullName, UriKind.Relative));
var navigationTargetHandler = new TestRegionNavigationContentLoader(serviceLocatorMock.Object);
// Act
var returnedView = navigationTargetHandler.LoadContent(region, navigationContext);
// Assert
Assert.AreSame(view2, returnedView);
}
public void AddingDuplicateNamedViewThrows()
{
IRegion region = new Region();
region.Add(new object(), "MyView");
region.Add(new object(), "MyView");
}
public void WhenViewExistsAndDoesNotImplementINavigationAware_ThenReturnsView()
{
// Arrange
var serviceLocatorMock = new Mock<IServiceLocator>();
var region = new Region();
var view = new TestView();
region.Add(view);
var navigationContext = new NavigationContext(null, new Uri(view.GetType().Name, UriKind.Relative));
var navigationTargetHandler = new TestRegionNavigationContentLoader(serviceLocatorMock.Object);
// Act
var returnedView = navigationTargetHandler.LoadContent(region, navigationContext);
// Assert
Assert.AreSame(view, returnedView);
}
public void WhenNoCurrentMatchingViewExists_ThenReturnsNewlyCreatedInstanceWithServiceLocatorAddedToTheRegion()
{
// Arrange
var serviceLocatorMock = new Mock<IServiceLocator>();
var region = new Region();
var view = new TestView();
serviceLocatorMock
.Setup(sl => sl.GetInstance<object>(view.GetType().Name))
.Returns(view);
var navigationContext = new NavigationContext(null, new Uri(view.GetType().Name, UriKind.Relative));
var navigationTargetHandler = new TestRegionNavigationContentLoader(serviceLocatorMock.Object);
// Act
var returnedView = navigationTargetHandler.LoadContent(region, navigationContext);
// Assert
Assert.AreSame(view, returnedView);
Assert.IsTrue(region.Views.Contains(view));
}
public void ActivateNonAddedViewThrows()
{
IRegion region = new Region();
object nonAddedView = new object();
region.Activate(nonAddedView);
}
public void RemoveInexistentViewThrows()
{
IRegion region = new Region();
object view = new object();
region.Remove(view);
Assert.AreEqual(0, region.Views.Cast<object>().Count());
}
public void AddingNonDependencyObjectToRegionDoesNotThrow()
{
IRegion region = new Region();
object model = new object();
region.Add(model);
Assert.AreEqual(1, region.Views.Cast<object>().Count());
}
public void CanRemoveContentFromRegion()
{
IRegion region = new Region();
object view = new object();
region.Add(view);
region.Remove(view);
Assert.AreEqual(0, region.Views.Cast<object>().Count());
}
public void CanAddContentToRegion()
{
IRegion region = new Region();
Assert.AreEqual(0, region.Views.Cast<object>().Count());
region.Add(new object());
Assert.AreEqual(1, region.Views.Cast<object>().Count());
}
public void AddNamedViewIsAlsoListedInViewsCollection()
{
IRegion region = new Region();
object myView = new object();
region.Add(myView, "MyView");
Assert.AreEqual(1, region.Views.Cast<object>().Count());
Assert.AreSame(myView, region.Views.Cast<object>().ElementAt(0));
}
public void CanAddAndRetrieveNamedViewInstance()
{
IRegion region = new Region();
object myView = new object();
region.Add(myView, "MyView");
object returnedView = region.GetView("MyView");
Assert.IsNotNull(returnedView);
Assert.AreSame(returnedView, myView);
}
public void RegionExposesCollectionOfContainedViews()
{
IRegion region = new Region();
object view = new object();
region.Add(view);
var views = region.Views;
Assert.IsNotNull(views);
Assert.AreEqual(1, views.Cast<object>().Count());
Assert.AreSame(view, views.Cast<object>().ElementAt(0));
}
public void MissingCandidateViewCreatesViewInRegion()
{
this.ConfigureMockServiceLocator();
// We cannot access the UnityRegionNavigationContentLoader directly so we need to call its
// GetCandidatesFromRegion method through a navigation request.
IRegion testRegion = new Region();
Assert.AreEqual(0, testRegion.Views.Count());
Assert.AreEqual(0, testRegion.ActiveViews.Count());
testRegion.RequestNavigate("MockView1");
Assert.AreEqual(1, testRegion.Views.Count());
Assert.AreEqual(1, testRegion.ActiveViews.Count());
}
public void WhenCreatingANewContextForAUriWithAQuery_ThenNewContextInitializesPropertiesAndExtractsTheQuery()
{
var uri = new Uri("test?name=value", UriKind.Relative);
var navigationJournalMock = new Mock<IRegionNavigationJournal>();
var navigationServiceMock = new Mock<IRegionNavigationService>();
IRegion region = new Region();
navigationServiceMock.SetupGet(n => n.Region).Returns(region);
navigationServiceMock.SetupGet(x => x.Journal).Returns(navigationJournalMock.Object);
var context = new NavigationContext(navigationServiceMock.Object, uri);
Assert.AreSame(navigationServiceMock.Object, context.NavigationService);
Assert.AreEqual(uri, context.Uri);
Assert.AreEqual(1, context.Parameters.Count());
Assert.AreEqual("value", context.Parameters["name"]);
}
public void ShouldFindCandidateViewWithFriendlyNameInRegion()
{
this.ConfigureMockServiceLocator();
// We cannot access the MefRegionNavigationContentLoader directly so we need to call its
// GetCandidatesFromRegion method through a navigation request.
IRegion testRegion = new Region();
MockView2 view = new MockView2();
testRegion.Add(view);
testRegion.Deactivate(view);
testRegion.RequestNavigate("SomeView");
Assert.IsTrue(testRegion.Views.Contains(view));
Assert.IsTrue(testRegion.Views.Count() == 1);
Assert.IsTrue(testRegion.ActiveViews.Count() == 1);
Assert.IsTrue(testRegion.ActiveViews.Contains(view));
}
public void WhenCreatingANewContextForAUriWithAQueryAndNavigationParameters_NoDuplicateParametersAreCreated()
{
var uri = new Uri("test?name=value", UriKind.Relative);
var navParameters = new NavigationParameters();
navParameters.Add("name", "value");
var navigationJournalMock = new Mock<IRegionNavigationJournal>();
var navigationServiceMock = new Mock<IRegionNavigationService>();
IRegion region = new Region();
navigationServiceMock.SetupGet(n => n.Region).Returns(region);
navigationServiceMock.SetupGet(x => x.Journal).Returns(navigationJournalMock.Object);
var context = new NavigationContext(navigationServiceMock.Object, uri, navParameters);
Assert.AreEqual(uri, context.Uri);
Assert.AreEqual(1, context.Parameters.Count());
Assert.AreEqual("value", context.Parameters["name"]);
}
public void WhenClearChildViewsPropertyIsNotSet_ThenChildViewsRegionManagerIsNotCleared()
{
var regionManager = new MockRegionManager();
var region = new Region();
region.RegionManager = regionManager;
var behavior = new ClearChildViewsRegionBehavior();
behavior.Region = region;
behavior.Attach();
var childView = new MockFrameworkElement();
region.Add(childView);
Assert.AreEqual(regionManager, childView.GetValue(RegionManager.RegionManagerProperty));
region.RegionManager = null;
Assert.AreEqual(regionManager, childView.GetValue(RegionManager.RegionManagerProperty));
}
public void AddingSameViewTwiceThrows()
{
object view = new object();
IRegion region = new Region();
region.Add(view);
try
{
region.Add(view);
Assert.Fail();
}
catch (InvalidOperationException ex)
{
Assert.AreEqual("View already exists in region.", ex.Message);
}
catch
{
Assert.Fail();
}
}
public void BeforeNavigating_NavigatingEventIsRaised()
{
// Prepare
object view = new object();
Uri viewUri = new Uri(view.GetType().Name, UriKind.Relative);
IRegion region = new Region();
region.Add(view);
string regionName = "RegionName";
RegionManager regionManager = new RegionManager();
regionManager.Regions.Add(regionName, region);
var serviceLocatorMock = new Mock<IServiceLocator>();
serviceLocatorMock.Setup(x => x.GetInstance<IRegionNavigationJournalEntry>()).Returns(new RegionNavigationJournalEntry());
IServiceLocator serviceLocator = serviceLocatorMock.Object;
RegionNavigationContentLoader contentLoader = new RegionNavigationContentLoader(serviceLocator);
IRegionNavigationJournal journal = new Mock<IRegionNavigationJournal>().Object;
RegionNavigationService target = new RegionNavigationService(serviceLocator, contentLoader, journal);
target.Region = region;
bool isNavigatingRaised = false;
target.Navigating += delegate(object sender, RegionNavigationEventArgs e)
{
if (sender == target)
{
isNavigatingRaised = true;
}
};
// Act
bool isNavigationSuccessful = false;
target.RequestNavigate(viewUri, nr => isNavigationSuccessful = nr.Result == true);
// Verify
Assert.IsTrue(isNavigationSuccessful);
Assert.IsTrue(isNavigatingRaised);
}
public void ShouldFindCandidateViewInRegion()
{
IUnityContainer container = new UnityContainer();
container.RegisterType<object, MockView>("MockView");
this.ConfigureMockServiceLocator(container);
// We cannot access the UnityRegionNavigationContentLoader directly so we need to call its
// GetCandidatesFromRegion method through a navigation request.
IRegion testRegion = new Region();
MockView view = new MockView();
testRegion.Add(view);
testRegion.Deactivate(view);
testRegion.RequestNavigate("MockView");
Assert.IsTrue(testRegion.Views.Contains(view));
Assert.IsTrue(testRegion.Views.Count() == 1);
Assert.IsTrue(testRegion.ActiveViews.Count() == 1);
Assert.IsTrue(testRegion.ActiveViews.Contains(view));
}
public void WhenNavigatingAndBindingContextImplementsIRegionAware_ThenNavigatedIsInvokesOnNavigation()
{
// Prepare
var region = new Region();
var mockView = new Mock <View>();
var mockIRegionAwareBindingContext = new Mock <IRegionAware>();
mockIRegionAwareBindingContext
.Setup(ina => ina.IsNavigationTarget(It.IsAny <INavigationContext>()))
.Returns(true);
mockView.Object.BindingContext = mockIRegionAwareBindingContext.Object;
var view = mockView.Object;
region.Add(view);
var navigationUri = new Uri(view.GetType().Name, UriKind.Relative);
var containerMock = new Mock <IContainerExtension>();
containerMock.Setup(x => x.Resolve(typeof(IRegionNavigationJournalEntry))).Returns(new RegionNavigationJournalEntry());
IContainerExtension container = containerMock.Object;
var contentLoader = new RegionNavigationContentLoader(container);
IRegionNavigationJournal journal = Mock.Of <IRegionNavigationJournal>();
var target = new RegionNavigationService(container, contentLoader, journal)
{
Region = region
};
// Act
target.RequestNavigate(navigationUri, nr => { });
// Verify
mockIRegionAwareBindingContext.Verify(v => v.OnNavigatedTo(It.Is <INavigationContext>(nc => nc.Uri == navigationUri)));
}
public void WhenNavigatingAndCurrentlyActiveViewImplementsINavigateWithVeto_ThenNavigationRequestQueriesForVeto()
{
// Prepare
var region = new Region();
var viewMock = new Mock <View>();
viewMock
.As <IConfirmRegionNavigationRequest>()
.Setup(ina => ina.ConfirmNavigationRequest(It.IsAny <INavigationContext>(), It.IsAny <Action <bool> >()))
.Verifiable();
var view = viewMock.Object;
region.Add(view);
region.Activate(view);
var navigationUri = new Uri(view.GetType().Name, UriKind.Relative);
var containerMock = new Mock <IContainerExtension>();
containerMock.Setup(x => x.Resolve(typeof(IRegionNavigationJournalEntry))).Returns(new RegionNavigationJournalEntry());
IContainerExtension container = containerMock.Object;
var contentLoader = new Mock <RegionNavigationContentLoader>(container).Object;
IRegionNavigationJournal journal = Mock.Of <IRegionNavigationJournal>();
var target = new RegionNavigationService(container, contentLoader, journal)
{
Region = region
};
// Act
target.RequestNavigate(navigationUri, nr => { });
// Verify
viewMock.VerifyAll();
}
public void AddNamedViewWithNullOrEmptyStringNameThrows()
{
IRegion region = new Region();
region.Add(new object(), string.Empty);
}
public void WhenNavigating_ThenNavigationRequestQueriesForVetoOnAllActiveViewsIfAllSucceed()
{
// Prepare
var region = new Region();
var view1Mock = new Mock <View>();
view1Mock
.As <IConfirmRegionNavigationRequest>()
.Setup(ina => ina.ConfirmNavigationRequest(It.IsAny <INavigationContext>(), It.IsAny <Action <bool> >()))
.Callback <INavigationContext, Action <bool> >((nc, c) => c(true))
.Verifiable();
var view1 = view1Mock.Object;
region.Add(view1);
region.Activate(view1);
var view2Mock = new Mock <StackLayout>();
view2Mock.As <IConfirmRegionNavigationRequest>();
var view2 = view2Mock.Object;
region.Add(view2);
var view3Mock = new Mock <Grid>();
view3Mock.As <IRegionAware>();
var view3 = view3Mock.Object;
region.Add(view3);
region.Activate(view3);
var view4Mock = new Mock <Frame>();
view4Mock
.As <IConfirmRegionNavigationRequest>()
.Setup(ina => ina.ConfirmNavigationRequest(It.IsAny <INavigationContext>(), It.IsAny <Action <bool> >()))
.Callback <INavigationContext, Action <bool> >((nc, c) => c(true))
.Verifiable();
var view4 = view4Mock.Object;
region.Add(view4);
region.Activate(view4);
var navigationUri = new Uri(view1.GetType().Name, UriKind.Relative);
var containerMock = new Mock <IContainerExtension>();
containerMock.Setup(x => x.Resolve(typeof(IRegionNavigationJournalEntry))).Returns(new RegionNavigationJournalEntry());
IContainerExtension container = containerMock.Object;
var contentLoader = new Mock <RegionNavigationContentLoader>(container).Object;
IRegionNavigationJournal journal = Mock.Of <IRegionNavigationJournal>();
var target = new RegionNavigationService(container, contentLoader, journal)
{
Region = region
};
// Act
target.RequestNavigate(navigationUri, nr => { });
// Verify
view1Mock.VerifyAll();
view2Mock
.As <IConfirmRegionNavigationRequest>()
.Verify(ina => ina.ConfirmNavigationRequest(It.IsAny <INavigationContext>(), It.IsAny <Action <bool> >()), Times.Never());
view3Mock.VerifyAll();
view4Mock.VerifyAll();
}
public void WhenViewsWithSortHintsAdded_RegionSortsViews()
{
IRegion region = new Region();
object view1 = new ViewOrder1();
object view2 = new ViewOrder2();
object view3 = new ViewOrder3();
region.Add(view1);
region.Add(view2);
region.Add(view3);
Assert.AreEqual(3, region.Views.Count());
Assert.AreSame(view2, region.Views.ElementAt(0));
Assert.AreSame(view3, region.Views.ElementAt(1));
Assert.AreSame(view1, region.Views.ElementAt(2));
}
public void WhenViewHasBeenRemovedAndRegionManagerPropertyCleared_ThenItCanBeAddedAgainToARegion()
{
IRegion region = new Region { RegionManager = new MockRegionManager() };
var view = new MockFrameworkElement();
var scopedRegionManager = region.Add(view, null, true);
Assert.AreEqual(view, region.Views.First());
region.Remove(view);
view.ClearValue(RegionManager.RegionManagerProperty);
Assert.AreEqual(0, region.Views.Cast<object>().Count());
var newScopedRegion = region.Add(view, null, true);
Assert.AreEqual(view, region.Views.First());
Assert.AreSame(newScopedRegion, view.GetValue(RegionManager.RegionManagerProperty));
}
public void ViewRemovedEventPassesTheViewRemovedInTheEventArgs()
{
object removedView = null;
IRegion region = new Region();
region.Views.CollectionChanged += (sender, e) =>
{
if (e.Action == NotifyCollectionChangedAction.Remove)
removedView = e.OldItems[0];
};
object model = new object();
region.Add(model);
Assert.IsNull(removedView);
region.Remove(model);
Assert.AreSame(model, removedView);
}
public void ViewAddedEventPassesTheViewAddedInTheEventArgs()
{
object viewAdded = null;
IRegion region = new Region();
region.Views.CollectionChanged += (sender, e) =>
{
if (e.Action == NotifyCollectionChangedAction.Add)
{
viewAdded = e.NewItems[0];
}
};
object model = new object();
Assert.IsNull(viewAdded);
region.Add(model);
Assert.IsNotNull(viewAdded);
Assert.AreSame(model, viewAdded);
}
public void WhenParentViewGetsActivatedOrDeactivated_ThenSyncedChildViewNotInActiveViewsIsNotUpdated()
{
var scopedRegionManager = new RegionManager();
var scopedRegion = new Region { Name="MyScopedRegion", RegionManager = scopedRegionManager };
scopedRegionManager.Regions.Add(scopedRegion);
var behaviorForScopedRegion = new RegionActiveAwareBehavior { Region = scopedRegion };
behaviorForScopedRegion.Attach();
var childActiveAwareView = new SyncedActiveAwareObject();
var region = new MockPresentationRegion();
var behavior = new RegionActiveAwareBehavior { Region = region };
behavior.Attach();
var view = new MockFrameworkElement();
region.Add(view);
RegionManager.SetRegionManager(view, scopedRegionManager);
region.Activate(view);
scopedRegion.Add(childActiveAwareView);
scopedRegion.Deactivate(childActiveAwareView);
Assert.IsFalse(childActiveAwareView.IsActive);
region.Deactivate(view);
Assert.IsFalse(childActiveAwareView.IsActive);
region.Activate(view);
Assert.IsFalse(childActiveAwareView.IsActive);
}
public void WhenNavigationFailsBecauseBindingContextForActiveViewRejectsIt_ThenNavigationFailedIsRaised()
{
// Prepare
var region = new Region {
Name = "RegionName"
};
var viewModel1Mock = new Mock <IConfirmRegionNavigationRequest>();
viewModel1Mock
.Setup(ina => ina.ConfirmNavigationRequest(It.IsAny <INavigationContext>(), It.IsAny <Action <bool> >()))
.Callback <INavigationContext, Action <bool> >((nc, c) => c(false))
.Verifiable();
var view1Mock = new Mock <View>();
var view1 = view1Mock.Object;
view1.BindingContext = viewModel1Mock.Object;
var view2 = new StackLayout();
region.Add(view1);
region.Add(view2);
region.Activate(view1);
var navigationUri = new Uri(view2.GetType().Name, UriKind.Relative);
var containerMock = new Mock <IContainerExtension>();
containerMock.Setup(x => x.Resolve(typeof(IRegionNavigationJournalEntry))).Returns(new RegionNavigationJournalEntry());
var contentLoaderMock = new Mock <IRegionNavigationContentLoader>();
contentLoaderMock
.Setup(cl => cl.LoadContent(region, It.IsAny <INavigationContext>()))
.Returns(view2);
var container = containerMock.Object;
var contentLoader = contentLoaderMock.Object;
var journal = Mock.Of <IRegionNavigationJournal>();
var target = new RegionNavigationService(container, contentLoader, journal)
{
Region = region
};
RegionNavigationFailedEventArgs eventArgs = null;
target.NavigationFailed += delegate(object sender, RegionNavigationFailedEventArgs e)
{
if (sender == target)
{
eventArgs = e;
}
};
// Act
bool?isNavigationSuccessful = null;
target.RequestNavigate(navigationUri, nr => isNavigationSuccessful = nr.Result);
// Verify
viewModel1Mock.VerifyAll();
Assert.False(isNavigationSuccessful.Value);
Assert.NotNull(eventArgs);
Assert.Null(eventArgs.Error);
}
public void WhenParentViewWithoutScopedRegionGetsActivatedOrDeactivated_ThenSyncedChildViewIsNotUpdated()
{
var commonRegionManager = new RegionManager();
var nonScopedRegion = new Region { Name="MyRegion", RegionManager = commonRegionManager };
commonRegionManager.Regions.Add(nonScopedRegion);
var behaviorForScopedRegion = new RegionActiveAwareBehavior { Region = nonScopedRegion };
behaviorForScopedRegion.Attach();
var childActiveAwareView = new SyncedActiveAwareObject();
var region = new MockPresentationRegion { RegionManager = commonRegionManager };
var behavior = new RegionActiveAwareBehavior { Region = region };
behavior.Attach();
var view = new MockFrameworkElement();
region.Add(view);
RegionManager.SetRegionManager(view, commonRegionManager);
region.Activate(view);
nonScopedRegion.Add(childActiveAwareView);
nonScopedRegion.Activate(childActiveAwareView);
Assert.IsTrue(childActiveAwareView.IsActive);
region.Deactivate(view);
Assert.IsTrue(childActiveAwareView.IsActive);
}
public void GetViewReturnsNullWhenViewDoesNotExistInRegion()
{
IRegion region = new Region();
Assert.Null(region.GetView("InexistentView"));
}
