public void BindToNullShouldThrowHelpfulError()
{
var view = new PropertyBindView()
{
ViewModel = null
};
Assert.Throws <ArgumentNullException>(() =>
view.WhenAnyValue(x => x.FakeControl.NullHatingString)
.BindTo(view.ViewModel, x => x.Property1));
}
public void BindToTypeConversionSmokeTest()
{
var vm = new PropertyBindViewModel();
var view = new PropertyBindView()
{
ViewModel = null
};
view.WhenAnyValue(x => x.ViewModel.JustADouble)
.BindTo(view, x => x.FakeControl.NullHatingString);
Assert.Equal("", view.FakeControl.NullHatingString);
view.ViewModel = vm;
Assert.Equal(vm.JustADouble.ToString(), view.FakeControl.NullHatingString);
}
public void ItemsControlShouldGetADataTemplateInBindTo()
{
var vm = new PropertyBindViewModel();
var view = new PropertyBindView()
{
ViewModel = vm
};
Assert.Null(view.FakeItemsControl.ItemTemplate);
vm.WhenAnyValue(x => x.SomeCollectionOfStrings)
.BindTo(view, v => v.FakeItemsControl.ItemsSource);
Assert.NotNull(view.FakeItemsControl.ItemTemplate);
view.WhenAnyValue(x => x.FakeItemsControl.SelectedItem)
.BindTo(vm, x => x.Property1);
}