public void Should_Return_FallbackValue_When_Converter_Returns_UnsetValue() { var target = new TextBlock(); var source = new { A = 1, B = 2, C = 3 }; var binding = new MultiBinding { Converter = new UnsetValueConverter(), Bindings = new[] { new Binding { Path = "A" }, new Binding { Path = "B" }, new Binding { Path = "C" }, }, FallbackValue = "fallback", }; target.Bind(TextBlock.TextProperty, binding); Assert.Equal("fallback", target.Text); }
public async void OneWay_Binding_Should_Be_Set_Up() { var source = new { A = 1, B = 2, C = 3 }; var binding = new MultiBinding { Converter = new ConcatConverter(), Bindings = new[] { new Binding { Path = "A" }, new Binding { Path = "B" }, new Binding { Path = "C" }, } }; var target = new Mock<IAvaloniaObject>().As<IControl>(); target.Setup(x => x.GetValue(Control.DataContextProperty)).Returns(source); var subject = binding.Initiate(target.Object, null).Subject; var result = await subject.Take(1); Assert.Equal("1,2,3", result); }