public void Should_Register_With_Host_When_TemplatedParent_Set()
{
var host = new Mock<IItemsPresenterHost>();
var target = new CarouselPresenter();
target.SetValue(Control.TemplatedParentProperty, host.Object);
host.Verify(x => x.RegisterItemsPresenter(target));
}
public void ItemContainerGenerator_Should_Be_Picked_Up_From_TemplatedControl()
{
var parent = new TestItemsControl();
var target = new CarouselPresenter
{
TemplatedParent = parent,
};
Assert.IsType<ItemContainerGenerator<TestItem>>(target.ItemContainerGenerator);
}
public void ApplyTemplate_Should_Create_Panel()
{
var target = new CarouselPresenter
{
ItemsPanel = new FuncTemplate<IPanel>(() => new Panel()),
};
target.ApplyTemplate();
Assert.IsType<Panel>(target.Panel);
}
public void Setting_SelectedIndex_Should_Show_Page()
{
var target = new CarouselPresenter
{
Items = new[] { "foo", "bar" },
SelectedIndex = 0,
};
target.ApplyTemplate();
Assert.IsType<ContentPresenter>(target.Panel.Children[0]);
Assert.Equal("foo", ((ContentPresenter)target.Panel.Children[0]).Content);
}
public void Should_Not_Remove_NonCurrent_Page_When_IsVirtualized_False()
{
var target = new CarouselPresenter
{
Items = new[] { "foo", "bar" },
IsVirtualized = false,
SelectedIndex = 0,
};
target.ApplyTemplate();
Assert.Equal(1, target.ItemContainerGenerator.Containers.Count());
Assert.Equal(1, target.Panel.Children.Count);
target.SelectedIndex = 1;
Assert.Equal(2, target.ItemContainerGenerator.Containers.Count());
Assert.Equal(2, target.Panel.Children.Count);
target.SelectedIndex = 0;
Assert.Equal(2, target.ItemContainerGenerator.Containers.Count());
Assert.Equal(2, target.Panel.Children.Count);
}
public void Should_Have_Correct_ItemsContainer_Index()
{
ObservableCollection<string> items = new ObservableCollection<string>();
var target = new CarouselPresenter
{
Items = items,
SelectedIndex = 0,
IsVirtualized = false,
};
target.ApplyTemplate();
target.SelectedIndex = 0;
items.Add("foo");
target.SelectedIndex = 0;
Assert.Equal(1, target.ItemContainerGenerator.Containers.Count());
Assert.Equal(1, target.Panel.Children.Count);
items.Add("bar");
Assert.Equal(1, target.ItemContainerGenerator.Containers.Count());
Assert.Equal(1, target.Panel.Children.Count);
target.SelectedIndex = 1;
Assert.Equal(2, target.ItemContainerGenerator.Containers.Count());
Assert.Equal(2, target.Panel.Children.Count);
Assert.Equal(0, target.ItemContainerGenerator.Containers.First().Index);
items.Remove(items[0]);
Assert.Equal(1, target.ItemContainerGenerator.Containers.Count());
Assert.Equal(1, target.Panel.Children.Count);
Assert.Equal(0, target.ItemContainerGenerator.Containers.First().Index);
items.Remove(items[0]);
Assert.Equal(0, target.ItemContainerGenerator.Containers.Count());
Assert.Equal(0, target.Panel.Children.Count);
}