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 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 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 WhenViewExistsAndHasDataContextThatImplementsIRegionAware_ThenDataContextIsQueriedForNavigationAndIsReturnedIfAcceptsIt()
{
// Arrange
var containerMock = new Mock <IContainerExtension>();
var region = new Region();
var bindingContextMock = new Mock <IRegionAware>();
bindingContextMock
.Setup(v => v.IsNavigationTarget(It.IsAny <INavigationContext>()))
.Returns(true)
.Verifiable();
var viewMock = new Mock <View>();
viewMock.Object.BindingContext = bindingContextMock.Object;
region.Add(viewMock.Object);
var navigationContext = new NavigationContext(null, new Uri(viewMock.Object.GetType().Name, UriKind.Relative));
var navigationTargetHandler = new TestRegionNavigationContentLoader(containerMock.Object);
// Act
var returnedView = navigationTargetHandler.LoadContent(region, navigationContext);
// Assert
Assert.Same(viewMock.Object, returnedView);
bindingContextMock.VerifyAll();
}
public void WhenViewExistsAndHasDataContextThatImplementsINavigationAware_ThenDataContextIsQueriedForNavigationAndIsReturnedIfAcceptsIt()
{
// Arrange
var serviceLocatorMock = new Mock <IServiceLocator>();
var region = new Region();
var dataContextMock = new Mock <INavigationAware>();
dataContextMock
.Setup(v => v.IsNavigationTarget(It.IsAny <NavigationContext>()))
.Returns(true)
.Verifiable();
var viewMock = new Mock <FrameworkElement>();
viewMock.Object.DataContext = dataContextMock.Object;
region.Add(viewMock.Object);
var navigationContext = new NavigationContext(null, new Uri(viewMock.Object.GetType().Name, UriKind.Relative));
var navigationTargetHandler = new TestRegionNavigationContentLoader(serviceLocatorMock.Object);
// Act
var returnedView = navigationTargetHandler.LoadContent(region, navigationContext);
// Assert
Assert.AreSame(viewMock.Object, returnedView);
dataContextMock.VerifyAll();
}
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 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 WhenViewAddedByHandlerDoesNotImplementIRegionAware_ThenReturnsView()
{
// Arrange
var containerMock = new Mock <IContainerExtension>();
var region = new Region();
var view = new Grid();
containerMock.Setup(x => x.Resolve(typeof(object), view.GetType().Name)).Returns(view);
containerMock.Setup(x => x.Resolve(typeof(IActiveRegionHelper)))
.Returns(new RegionResolverOverrides());
var navigationContext = new NavigationContext(null, new Uri(view.GetType().Name, UriKind.Relative));
var navigationTargetHandler = new TestRegionNavigationContentLoader(containerMock.Object);
// Act
var firstReturnedView = navigationTargetHandler.LoadContent(region, navigationContext);
var secondReturnedView = navigationTargetHandler.LoadContent(region, navigationContext);
// Assert
Assert.Same(view, firstReturnedView);
Assert.Same(view, secondReturnedView);
containerMock.Verify(sl => sl.Resolve(typeof(object), view.GetType().Name), Times.Once());
}
public void WhenRegionHasMultipleViews_ThenViewsWithMatchingFullTypeNameAreConsidered()
{
// Arrange
var containerMock = new Mock <IContainerExtension>();
//containerMock.As<IContainerInfo>()
// .Setup(x => x.GetRegistrationType("Xamarin.Forms.Grid"))
// .Returns(typeof(Grid));
containerMock.Setup(x => x.Resolve(typeof(IActiveRegionHelper)))
.Returns(new RegionResolverOverrides());
var region = new Region();
var view1 = new TestView();
var view2 = new Grid();
region.Add(view1);
region.Add(view2);
var navigationContext = new NavigationContext(null, new Uri(view2.GetType().FullName, UriKind.Relative));
var navigationTargetHandler = new TestRegionNavigationContentLoader(containerMock.Object);
// Act
var returnedView = navigationTargetHandler.LoadContent(region, navigationContext);
// Assert
Assert.Same(view2, returnedView);
}
public void WhenViewAddedByHandlerDoesNotImplementINavigationAware_ThenReturnsView()
{
// 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 firstReturnedView = navigationTargetHandler.LoadContent(region, navigationContext);
var secondReturnedView = navigationTargetHandler.LoadContent(region, navigationContext);
// Assert
Assert.AreSame(view, firstReturnedView);
Assert.AreSame(view, secondReturnedView);
serviceLocatorMock.Verify(sl => sl.GetInstance <object>(view.GetType().Name), Times.Once());
}
public void WhenNoCurrentMatchingViewExists_ThenReturnsNewlyCreatedInstanceWithServiceLocatorAddedToTheRegion()
{
// Arrange
var containerMock = new Mock <IContainerExtension>();
var region = new Region();
var view = new TestView();
containerMock.Setup(sl => sl.Resolve(typeof(object), view.GetType().Name)).Returns(view);
containerMock.Setup(x => x.Resolve(typeof(IActiveRegionHelper)))
.Returns(new RegionResolverOverrides());
var navigationContext = new NavigationContext(null, new Uri(view.GetType().Name, UriKind.Relative));
var navigationTargetHandler = new TestRegionNavigationContentLoader(containerMock.Object);
// Act
var returnedView = navigationTargetHandler.LoadContent(region, navigationContext);
// Assert
Assert.Same(view, returnedView);
Assert.True(region.Views.Contains(view));
}
public void WhenViewExistsAndDoesNotImplementIRegionAware_ThenReturnsView()
{
// Arrange
var containerMock = new Mock <IContainerExtension>();
containerMock.Setup(x => x.Resolve(typeof(IActiveRegionHelper)))
.Returns(new RegionResolverOverrides());
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(containerMock.Object);
// Act
var returnedView = navigationTargetHandler.LoadContent(region, navigationContext);
// Assert
Assert.Same(view, returnedView);
}
public void WhenRegionHasMultipleViews_ThenViewsWithMatchingTypeNameAreConsidered()
{
// 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().Name, UriKind.Relative));
var navigationTargetHandler = new TestRegionNavigationContentLoader(serviceLocatorMock.Object);
// Act
var returnedView = navigationTargetHandler.LoadContent(region, navigationContext);
// Assert
Assert.AreSame(view2, returnedView);
}
public void WhenViewExistsAndHasDataContextThatImplementsINavigationAware_ThenDataContextIsQueriedForNavigationAndNewInstanceIsCreatedIfItRejectsIt()
{
// Arrange
var containerMock = new Mock <IContainerExtension>();
var region = new Region();
var dataContextMock = new Mock <INavigationAware>();
dataContextMock
.Setup(v => v.IsNavigationTarget(It.IsAny <NavigationContext>()))
.Returns(false)
.Verifiable();
var viewMock = new Mock <FrameworkElement>();
viewMock.Object.DataContext = dataContextMock.Object;
region.Add(viewMock.Object);
var newView = new TestView();
containerMock.Setup(sl => sl.Resolve(typeof(object), viewMock.Object.GetType().Name)).Returns(newView);
var navigationContext = new NavigationContext(null, new Uri(viewMock.Object.GetType().Name, UriKind.Relative));
var navigationTargetHandler = new TestRegionNavigationContentLoader(containerMock.Object);
// Act
var returnedView = navigationTargetHandler.LoadContent(region, navigationContext);
// Assert
Assert.Same(newView, returnedView);
Assert.True(region.Views.Contains(newView));
dataContextMock.VerifyAll();
}
public void WhenRequestingContentForNullContext_ThenThrows()
{
var serviceLocatorMock = new Mock <IServiceLocator>();
var region = new Region();
var navigationTargetHandler = new TestRegionNavigationContentLoader(serviceLocatorMock.Object);
ExceptionAssert.Throws <ArgumentNullException>(
() =>
{
navigationTargetHandler.LoadContent(region, null);
});
}
public void WhenRequestingContentForNullRegion_ThenThrows()
{
var serviceLocatorMock = new Mock <IServiceLocator>();
var navigationContext = new NavigationContext(null, new Uri("/", UriKind.Relative));
var navigationTargetHandler = new TestRegionNavigationContentLoader(serviceLocatorMock.Object);
ExceptionAssert.Throws <ArgumentNullException>(
() =>
{
navigationTargetHandler.LoadContent(null, navigationContext);
});
}
public void WhenViewCannotBeCreated_ThenThrowsAnException()
{
var containerMock = new Mock <IContainerExtension>();
containerMock.Setup(sl => sl.Resolve(typeof(object), typeof(TestView).Name)).Throws <ActivationException>();
var region = new Region();
var navigationContext = new NavigationContext(null, new Uri(typeof(TestView).Name, UriKind.Relative));
var navigationTargetHandler = new TestRegionNavigationContentLoader(containerMock.Object);
// Act
ExceptionAssert.Throws <InvalidOperationException>(
() =>
{
navigationTargetHandler.LoadContent(region, navigationContext);
});
}
public void WhenViewCannotBeCreated_ThenThrowsAnException()
{
var containerMock = new Mock <IContainerExtension>();
containerMock.Setup(x => x.Resolve(typeof(object), typeof(TestView).Name))
.Throws(new ContainerResolutionException(typeof(object), typeof(TestView).Name, null));
containerMock.Setup(x => x.Resolve(typeof(IActiveRegionHelper)))
.Returns(new RegionResolverOverrides());
var region = new Region();
var navigationContext = new NavigationContext(null, new Uri(typeof(TestView).Name, UriKind.Relative));
var navigationTargetHandler = new TestRegionNavigationContentLoader(containerMock.Object);
// Act
var ex = Record.Exception(() => navigationTargetHandler.LoadContent(region, navigationContext));
Assert.IsType <ContainerResolutionException>(ex);
}
public void WhenViewExistsAndImplementsINavigationAware_ThenViewIsQueriedForNavigationAndNewInstanceIsCreatedIfItRejectsIt()
{
// Arrange
var serviceLocatorMock = new Mock <IServiceLocator>();
var region = new Region();
var viewMock = new Mock <INavigationAware>();
viewMock
.Setup(v => v.IsNavigationTarget(It.IsAny <NavigationContext>()))
.Returns(false)
.Verifiable();
region.Add(viewMock.Object);
var newView = new TestView();
serviceLocatorMock
.Setup(sl => sl.GetInstance <object>(viewMock.Object.GetType().Name))
.Returns(newView);
var navigationContext = new NavigationContext(null, new Uri(viewMock.Object.GetType().Name, UriKind.Relative));
var navigationTargetHandler = new TestRegionNavigationContentLoader(serviceLocatorMock.Object);
// Act
var returnedView = navigationTargetHandler.LoadContent(region, navigationContext);
// Assert
Assert.AreSame(newView, returnedView);
Assert.IsTrue(region.Views.Contains(newView));
viewMock.VerifyAll();
}
public void WhenViewCannotBeCreated_ThenThrowsAnException()
{
var serviceLocatorMock = new Mock <IServiceLocator>();
serviceLocatorMock
.Setup(sl => sl.GetInstance <object>(typeof(TestView).Name))
.Throws <ActivationException>();
var region = new Region();
var navigationContext = new NavigationContext(null, new Uri(typeof(TestView).Name, UriKind.Relative));
var navigationTargetHandler = new TestRegionNavigationContentLoader(serviceLocatorMock.Object);
// Act
ExceptionAssert.Throws <InvalidOperationException>(
() =>
{
navigationTargetHandler.LoadContent(region, navigationContext);
});
}
public void WhenViewExistsAndHasDataContextThatImplementsINavigationAware_ThenDataContextIsQueriedForNavigationAndIsReturnedIfAcceptsIt()
{
// Arrange
var serviceLocatorMock = new Mock<IServiceLocator>();
var region = new Region();
var dataContextMock = new Mock<INavigationAware>();
dataContextMock
.Setup(v => v.IsNavigationTarget(It.IsAny<NavigationContext>()))
.Returns(true)
.Verifiable();
var viewMock = new Mock<FrameworkElement>();
viewMock.Object.DataContext = dataContextMock.Object;
region.Add(viewMock.Object);
var navigationContext = new NavigationContext(null, new Uri(viewMock.Object.GetType().Name, UriKind.Relative));
var navigationTargetHandler = new TestRegionNavigationContentLoader(serviceLocatorMock.Object);
// Act
var returnedView = navigationTargetHandler.LoadContent(region, navigationContext);
// Assert
Assert.AreSame(viewMock.Object, returnedView);
dataContextMock.VerifyAll();
}
public void WhenViewExistsAndHasDataContextThatImplementsINavigationAware_ThenDataContextIsQueriedForNavigationAndNewInstanceIsCreatedIfItRejectsIt()
{
// Arrange
var serviceLocatorMock = new Mock<IServiceLocator>();
var region = new Region();
var dataContextMock = new Mock<INavigationAware>();
dataContextMock
.Setup(v => v.IsNavigationTarget(It.IsAny<NavigationContext>()))
.Returns(false)
.Verifiable();
var viewMock = new Mock<FrameworkElement>();
viewMock.Object.DataContext = dataContextMock.Object;
region.Add(viewMock.Object);
var newView = new TestView();
serviceLocatorMock
.Setup(sl => sl.GetInstance<object>(viewMock.Object.GetType().Name))
.Returns(newView);
var navigationContext = new NavigationContext(null, new Uri(viewMock.Object.GetType().Name, UriKind.Relative));
var navigationTargetHandler = new TestRegionNavigationContentLoader(serviceLocatorMock.Object);
// Act
var returnedView = navigationTargetHandler.LoadContent(region, navigationContext);
// Assert
Assert.AreSame(newView, returnedView);
Assert.IsTrue(region.Views.Contains(newView));
dataContextMock.VerifyAll();
}
public void WhenViewCannotBeCreated_ThenThrowsAnException()
{
var serviceLocatorMock = new Mock<IServiceLocator>();
serviceLocatorMock
.Setup(sl => sl.GetInstance<object>(typeof(TestView).Name))
.Throws<ActivationException>();
var region = new Region();
var navigationContext = new NavigationContext(null, new Uri(typeof(TestView).Name, UriKind.Relative));
var navigationTargetHandler = new TestRegionNavigationContentLoader(serviceLocatorMock.Object);
// Act
ExceptionAssert.Throws<InvalidOperationException>(
() =>
{
navigationTargetHandler.LoadContent(region, navigationContext);
});
}
public void WhenRequestingContentForNullContext_ThenThrows()
{
var serviceLocatorMock = new Mock<IServiceLocator>();
var region = new Region();
var navigationTargetHandler = new TestRegionNavigationContentLoader(serviceLocatorMock.Object);
ExceptionAssert.Throws<ArgumentNullException>(
() =>
{
navigationTargetHandler.LoadContent(region, null);
});
}
public void WhenViewAddedByHandlerDoesNotImplementINavigationAware_ThenReturnsView()
{
// 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 firstReturnedView = navigationTargetHandler.LoadContent(region, navigationContext);
var secondReturnedView = navigationTargetHandler.LoadContent(region, navigationContext);
// Assert
Assert.AreSame(view, firstReturnedView);
Assert.AreSame(view, secondReturnedView);
serviceLocatorMock.Verify(sl => sl.GetInstance<object>(view.GetType().Name), Times.Once());
}
public void WhenRequestingContentForNullRegion_ThenThrows()
{
var serviceLocatorMock = new Mock<IServiceLocator>();
var navigationContext = new NavigationContext(null, new Uri("/", UriKind.Relative));
var navigationTargetHandler = new TestRegionNavigationContentLoader(serviceLocatorMock.Object);
ExceptionAssert.Throws<ArgumentNullException>(
() =>
{
navigationTargetHandler.LoadContent(null, navigationContext);
});
}