diff --git a/tests/Avalonia.Markup.Xaml.UnitTests/MarkupExtensions/BindingExtensionTests.cs b/tests/Avalonia.Markup.Xaml.UnitTests/MarkupExtensions/BindingExtensionTests.cs index 9ea2cd643a..bbb68e7cdf 100644 --- a/tests/Avalonia.Markup.Xaml.UnitTests/MarkupExtensions/BindingExtensionTests.cs +++ b/tests/Avalonia.Markup.Xaml.UnitTests/MarkupExtensions/BindingExtensionTests.cs @@ -84,6 +84,54 @@ namespace Avalonia.Markup.Xaml.UnitTests.MarkupExtensions } } + [Fact] + public void SupportCastToTypeInExpression() + { + 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 SupportCastToTypeInExpression_DifferentTypeEvaluatesToNull() + { + using (UnitTestApplication.Start(TestServices.StyledWindow)) + { + var xaml = @" + + +"; + var window = (Window)AvaloniaRuntimeXamlLoader.Load(xaml); + var contentControl = window.FindControl("contentControl"); + + var dataContext = "foo"; + + window.DataContext = dataContext; + + Assert.Equal(null, contentControl.Content); + } + } private class FooBar { public object Foo { get; } = null;