public void When_constructed_then_it_is_bound_to_the_list_on_the_viewmodel()
{
ListBox customerList = new ListBox();
CustomerListViewModel vm = new CustomerListViewModel("Jeff", "Glenn");
ListBinder<Customer, CustomerListViewModel> binder = new ListBinder<Customer, CustomerListViewModel>(customerList, p => p.Customers, p => p.SelectedCustomer, vm);
binder.Bind();
Assert.AreEqual(2, customerList.Items.Count);
}
public void When_adding_a_template_binder_then_it_can_be_retrieved()
{
var customer = new Customer() { FirstName = "Jeff", LastName = "Handley" };
var customerListVM = new CustomerListViewModel(customer);
var templateView = new StackPanel();
var view = new ListBox();
var viewBinder = ViewBinder.For(view, customerListVM).
Template<Customer>("Customer", null);
var templateBinder = viewBinder.GetTemplateBinder("Customer");
Assert.IsNotNull(templateBinder);
}
public void When_list_binder_is_added_then_it_can_be_retrieved_by_its_type()
{
ListBox citiesList = new ListBox();
CustomerListViewModel vm = new CustomerListViewModel("Jeff", "Glenn");
ListBinder<Customer,CustomerListViewModel> binder = new ListBinder<Customer,CustomerListViewModel>(citiesList, p => vm.Customers, p => vm.SelectedCustomer,vm);
var viewModelBinder = new ViewBinder<CustomerListViewModel>(citiesList, vm);
viewModelBinder.Add(binder);
var binders = viewModelBinder.GetBinders<ListBinder<Customer,CustomerListViewModel>>(citiesList);
Assert.AreEqual(binder, binders.Single(), "There should be a single list binder found");
}
public void When_selected_property_is_updated_in_the_vm_then_list_is_updated()
{
ListBox customerList = new ListBox();
CustomerListViewModel vm = new CustomerListViewModel("Jeff", "Glenn");
ListBinder<Customer, CustomerListViewModel> binder = new ListBinder<Customer, CustomerListViewModel>(customerList, p => p.Customers, p => p.SelectedCustomer, vm);
binder.Bind();
vm.SelectedCustomer = vm.Customers[1];
Assert.AreEqual("Glenn", ((Customer)customerList.SelectedItem).FirstName);
}
public void When_selected_items_exist_at_load_then_the_view_reflects_the_items()
{
ListBox customerList = new ListBox();
customerList.SelectionMode = SelectionMode.Multiple;
CustomerListViewModel vm = new CustomerListViewModel("Nick", "Jeff", "Glenn", "Hamilton");
vm.SelectedCustomers.Add(vm.Customers[1]);
vm.SelectedCustomers.Add(vm.Customers[2]);
ListBinder<Customer, CustomerListViewModel> binder = new ListBinder<Customer, CustomerListViewModel>(customerList, p => p.Customers, p => p.SelectedCustomers, vm);
binder.Bind();
Assert.AreEqual(2, customerList.SelectedItems.Count);
Assert.AreEqual("Jeff", ((Customer)customerList.SelectedItems[0]).FirstName);
Assert.AreEqual("Glenn", ((Customer)customerList.SelectedItems[1]).FirstName);
}
public void When_multiple_items_are_selected_then_vm_selected_items_are_updated()
{
ListBox customerList = new ListBox();
customerList.SelectionMode = SelectionMode.Multiple;
CustomerListViewModel vm = new CustomerListViewModel("Nick", "Jeff", "Glenn", "Hamilton");
ListBinder<Customer, CustomerListViewModel> binder = new ListBinder<Customer, CustomerListViewModel>(customerList, p => p.Customers, p => p.SelectedCustomers, vm);
binder.Bind();
customerList.SelectedItems.Add(customerList.Items[1]);
customerList.SelectedItems.Add(customerList.Items[2]);
Assert.AreEqual(2, vm.SelectedCustomers.Count);
Assert.AreEqual("Jeff", vm.SelectedCustomers[0].FirstName);
Assert.AreEqual("Glenn", vm.SelectedCustomers[1].FirstName);
}
public void When_list_item_is_selected_then_viewmodel_is_updated()
{
ListBox customerList = new ListBox();
CustomerListViewModel vm = new CustomerListViewModel("Jeff", "Glenn");
ListBinder<Customer, CustomerListViewModel> binder = new ListBinder<Customer, CustomerListViewModel>(customerList, p => p.Customers, p => p.SelectedCustomer, vm);
binder.Bind();
customerList.SelectedIndex = 1;
Assert.AreEqual("Glenn", vm.SelectedCustomer.FirstName);
}
public void When_constructed_with_a_ListBox_then_selected_item_binder_is_set_to_selected_convention()
{
ListBox customerList = new ListBox();
customerList.Name = "Customers";
CustomerListViewModel vm = new CustomerListViewModel("Jeff", "Glenn");
customerList.SetValue(ViewBinder.ModelProperty, vm);
ListBinder<Customer, CustomerListViewModel> binder = new ListBinder<Customer, CustomerListViewModel>(customerList);
Assert.AreEqual("SelectedCustomer", binder.SelectedItemBinder.TargetPath);
}