public void WHEN_viewmodel_creation_is_racing_SHOULD_create_type_once()
{
//Arrange
var typeCreationFunc = new Func <IExtensionViewModel>(() =>
{
var vm = new ExtendedViewModel
{
BaseProperty = GetRandom.String(10)
};
var extension = ExtensionTypeProxyFactory.Default.Create <IExtensionViewModel>(vm);
return(extension);
});
//Act
var tasks = new List <Task <IExtensionViewModel> >();
for (var i = 0; i < 100; i++)
{
var t = Task.Factory.StartNew(typeCreationFunc);
tasks.Add(t);
}
Task.WaitAll(tasks.Cast <Task>().ToArray());
//Assert
tasks.Any(t => t.IsFaulted).Should().BeFalse();
}
public ExtendedContentControl()
{
if (!DesignMode.DesignModeEnabled)
{
DataContextChanged += (s, e) =>
{
if (!ReferenceEquals(ViewModel, e.NewValue))
{
OnViewModelChanging();
ViewModel = e.NewValue as ExtendedViewModel;
if (GetType().ImplementsGenericInterface(typeof(IView <>)))
{
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(IView <ExtendedViewModel> .VM)));
}
OnViewModelChanged();
}
};
}
compositor = ElementCompositionPreview.GetElementVisual(this).Compositor;
Loaded += OnModalLoaded;
}
public PartialViewResult ExtendedView(int _transactionNumber)
{
//create the view model
ExtendedViewModel vm = new ExtendedViewModel(_transactionNumber);
//Return the view
return(PartialView("Partials/ExtendedView", vm));
}
protected override void OnDisappearing()
{
base.OnDisappearing();
ExtendedViewModel vm = BindingContext as ExtendedViewModel;
if (vm != null && vm.UnloadCommand.CanExecute(null))
{
vm.UnloadCommand.Execute(null);
}
}
public void WHEN_parameter_type_does_is_not_interface_SHOULD_throw_InvalidOperationException()
{
// Arrange
var viewModel = new ExtendedViewModel();
// Act
var exception =
Assert.Throws <InvalidOperationException>(() => ExtensionTypeProxyFactory.Default.Create <ExtendedViewModel>(viewModel));
// Assert
exception.Should().NotBeNull();
}
public void WHEN_viewModel_is_null_SHOULD_throw_ArgumentNullException()
{
// Arrange
ExtendedViewModel viewModel = null;
// Act
var exception =
Assert.Throws <ArgumentNullException>(() => ExtensionTypeProxyFactory.Default.Create <IExtensionViewModel>(viewModel));
// Assert
exception.Should().NotBeNull();
}
public void WHEN_parameter_type_is_missing_property_setter_SHOULD_throw_InvalidOperationException()
{
// Arrange
var viewModel = new ExtendedViewModel();
// Act
var exception =
Assert.Throws <InvalidOperationException>(
() => ExtensionTypeProxyFactory.Default.Create <IViewModelExtensionWithMissingPropertySetter>(viewModel));
// Assert
exception.Should().NotBeNull();
}
public void WHEN_parameter_type_defines_a_method_SHOULD_throw_InvalidOperationException()
{
// Arrange
var viewModel = new ExtendedViewModel();
// Act
var exception =
Assert.Throws <InvalidOperationException>(
() => ExtensionTypeProxyFactory.Default.Create <IViewModelExtensionWithMethod>(viewModel));
// Assert
exception.Should().NotBeNull();
}
WHEN_valid_extension_and_edit_custom_property_SHOULD_store_value_in_extended_model_property_bag()
{
// Arrange
var viewModel = new ExtendedViewModel();
var extendedViewModel = ExtensionTypeProxyFactory.Default.Create <IExtensionViewModel>(viewModel);
var customPropertyValue = 12345;
// Act
extendedViewModel.CustomProperty = customPropertyValue;
// Assert
extendedViewModel.CustomProperty.ShouldBeEquivalentTo(customPropertyValue);
viewModel.Bag.ContainsKey("CustomProperty").Should().BeTrue();
viewModel.Bag["CustomProperty"].Should().Be(customPropertyValue);
}
WHEN_parameter_type_is_valid_SHOULD_return_an_instance_of_an_implementation_of_ExtensionOf_view_model_type()
{
// Arrange
var basePropertyValue = "test";
var viewModel = new ExtendedViewModel {
BaseProperty = basePropertyValue
};
// Act
var extendedViewModel = ExtensionTypeProxyFactory.Default.Create <IExtensionViewModel>(viewModel);
// Assert
extendedViewModel.Should().NotBeNull();
extendedViewModel.Model.Should().NotBeNull();
extendedViewModel.Model.Should().BeAssignableTo <ExtendedViewModel>();
extendedViewModel.Model.Should().BeSameAs(viewModel);
extendedViewModel.Model.BaseProperty.ShouldBeEquivalentTo(basePropertyValue);
}
public ExtendedMapPage()
{
BindingContext = new ExtendedViewModel();
var grid = new Grid
{
RowDefinitions = new RowDefinitionCollection
{
new RowDefinition {
Height = new GridLength(1, GridUnitType.Star)
}
},
ColumnDefinitions = new ColumnDefinitionCollection
{
new ColumnDefinition {
Width = new GridLength(1, GridUnitType.Star)
}
}
};
grid.Children.Add(CreateMapContentView(), 0, 0);
Content = grid;
}
