public RootPageModel(AppState appState)
{
_appState = appState;
_appState.PropertyChanged += OnAppStatePropertyChanged;
AddItemCommand = new Command(() =>
{
var item = appState.AddNewItem();
appState.SelectItem(item);
});
DeleteItemCommand = new Command(
() => appState.DeleteItem(appState.SelectedItem),
() => (appState.SelectedItem != null)
);
}
public void AddNewItem_DoesAddItem()
{
var sut = new AppState();
sut.AddNewItem();
Assert.Single(sut.Items);
}