diff --git a/tests/Avalonia.Markup.Xaml.UnitTests/MarkupExtensions/CompiledBindingExtensionTests.cs b/tests/Avalonia.Markup.Xaml.UnitTests/MarkupExtensions/CompiledBindingExtensionTests.cs index 8a82ad048b..c651aabe0a 100644 --- a/tests/Avalonia.Markup.Xaml.UnitTests/MarkupExtensions/CompiledBindingExtensionTests.cs +++ b/tests/Avalonia.Markup.Xaml.UnitTests/MarkupExtensions/CompiledBindingExtensionTests.cs @@ -616,23 +616,105 @@ namespace Avalonia.Markup.Xaml.UnitTests.MarkupExtensions Assert.Throws(() => AvaloniaRuntimeXamlLoader.Load(xaml)); } } + + [Fact] + public void SupportCastToTypeInExpressionWithProperty() + { + using (UnitTestApplication.Start(TestServices.StyledWindow)) + { + var xaml = @" + + +"; + var window = (Window)AvaloniaRuntimeXamlLoader.Load(xaml); + var contentControl = window.FindControl("contentControl"); + + var dataContext = new TestDataContext + { + StringProperty = "foobar" + }; + + window.DataContext = dataContext; + + Assert.Equal(dataContext.StringProperty, contentControl.Content); + } + } + + [Fact] + public void SupportCastToTypeInExpressionWithProperty1() + { + using (UnitTestApplication.Start(TestServices.StyledWindow)) + { + var xaml = @" + + +"; + var window = (Window)AvaloniaRuntimeXamlLoader.Load(xaml); + var contentControl = window.FindControl("contentControl"); + + var dataContext = new TestDataContext + { + StringProperty = "foobar" + }; + + window.DataContext = dataContext; + + Assert.Equal(dataContext.StringProperty, contentControl.Content); + } + } + + [Fact] + public void SupportCastToTypeInExpressionWithProperty_DifferentTypeEvaluatesToNull() + { + using (UnitTestApplication.Start(TestServices.StyledWindow)) + { + var xaml = @" + + +"; + var window = (Window)AvaloniaRuntimeXamlLoader.Load(xaml); + var contentControl = window.FindControl("contentControl"); + + var dataContext = new TestDataContext + { + StringProperty = "foobar" + }; + + window.DataContext = dataContext; + + Assert.Equal(dataContext.StringProperty, contentControl.Content); + + window.DataContext = "foo"; + + Assert.Equal(null, contentControl.Content); + } + } } public interface INonIntegerIndexer { - string this[string key] {get; set;} + string this[string key] { get; set; } } public interface INonIntegerIndexerDerived : INonIntegerIndexer - {} + { } public interface IHasProperty { - string StringProperty {get; set; } + string StringProperty { get; set; } } public interface IHasPropertyDerived : IHasProperty - {} + { } public class TestDataContext : IHasPropertyDerived {