public void It_Doesnt_Attach_Children_With_Same_Name_From_ViewModel()
{
var parentViewModel = new ViewModelBase();
var childViewModel1 = new ViewModelBase("Child1");
var childViewModel2 = new ViewModelBase("Child1");
parentViewModel.AttachChild(childViewModel1);
Assert.Throws <InvalidOperationException>(() => parentViewModel.AttachChild(childViewModel2));
}
public void It_Attaches_Multiple_Children_With_Name_From_ViewModel()
{
var parentViewModel = new ViewModelBase();
var childViewModel1 = new ViewModelBase("Child1");
var childViewModel2 = new ViewModelBase("Child2");
parentViewModel.AttachChild(childViewModel1);
parentViewModel.AttachChild(childViewModel2);
parentViewModel.GetChildren().Should().Contain(childViewModel1);
parentViewModel.GetChildren().Should().Contain(childViewModel2);
}
public void It_Attaches_Child()
{
var parentViewModel = new ViewModelBase();
var childViewModel = new ViewModelBase();
parentViewModel.AttachChild(childViewModel);
parentViewModel.GetChildren().Should().Contain(childViewModel);
}
public void It_Gets_Child_On_Attach()
{
var parentViewModel = new ViewModelBase();
var childViewModel = new TestViewModel();
var attachedViewModel = parentViewModel.AttachChild(childViewModel);
attachedViewModel.Should().Be(childViewModel);
attachedViewModel.Should().BeOfType(typeof(TestViewModel));
}
public void It_Shares_View_When_Set_After_Attached()
{
var parentViewModel = new ViewModelBase();
var childViewModel = new TestViewModel();
parentViewModel.AttachChild(childViewModel);
parentViewModel.View = new TestViewModelView();
childViewModel.View.Should().Be(parentViewModel.View);
}
public void It_Disposes_Child_When_Attached()
{
var isChildDisposed = false;
var parentViewModel = new ViewModelBase();
var childViewModel = new TestViewModel(onDispose: () => isChildDisposed = true);
parentViewModel.AttachChild(childViewModel);
parentViewModel.Dispose();
isChildDisposed.Should().BeTrue();
}
