protected override void OnAppearing()
{
base.OnAppearing();
if (_viewModel == null)
{
_viewModel = new TodoItemsPageViewModel();
}
BindingContext = _viewModel;
MessageCenterSubscribe();
TodoItemListView.ItemTapped += TodoItemListView_ItemTapped;
}
protected override async void OnAppearing()
{
base.OnAppearing();
if (_viewModel == null)
{
_viewModel = new TodoItemsPageViewModel();
}
BindingContext = _viewModel;
MessageCenterSubscribe();
TodoItemListView.ItemTapped += TodoItemListView_ItemTapped;
await _viewModel.OnRefreshItemsCommand();
}
public async Task MutableOperationsTest()
{
try
{
var authViewModel = new MainPageViewModel();
await authViewModel.ConnectToNetworkAsync();
Assert.True(authViewModel.AppService.IsSessionAvailable);
await authViewModel.AppService.GetMdInfoAsync();
var todoItemsViewModel = new TodoItemsPageViewModel();
// Test get mdata entries
await todoItemsViewModel.OnRefreshItemsCommand();
Assert.Zero(todoItemsViewModel.ToDoItems.Count);
var addItemViewModel = new AddItemViewModel();
// Test add todo item
addItemViewModel.Title = Misc.GetRandomString(10);
addItemViewModel.Details = Misc.GetRandomString(10);
// Test fetch todo items
await addItemViewModel.OnSaveItemCommand();
await todoItemsViewModel.OnRefreshItemsCommand();
Assert.NotZero(todoItemsViewModel.ToDoItems.Count);
// Test add second todo item
addItemViewModel.Title = Misc.GetRandomString(10);
addItemViewModel.Details = Misc.GetRandomString(10);
// Test fetch todo items
await addItemViewModel.OnSaveItemCommand();
await todoItemsViewModel.OnRefreshItemsCommand();
Assert.NotZero(todoItemsViewModel.ToDoItems.Count);
Assert.AreEqual(2, todoItemsViewModel.ToDoItems.Count);
// Test delete todo item
await addItemViewModel.DeleteItemAsync(todoItemsViewModel.ToDoItems[0]);
await todoItemsViewModel.OnRefreshItemsCommand();
Assert.AreEqual(1, todoItemsViewModel.ToDoItems.Count);
// Test update todo item
var updateViewModel = new AddItemViewModel(todoItemsViewModel.ToDoItems[0], true);
var newDetails = "UpdatedDetails";
updateViewModel.Details = newDetails;
await updateViewModel.OnSaveItemCommand();
await todoItemsViewModel.OnRefreshItemsCommand();
Assert.AreEqual(1, todoItemsViewModel.ToDoItems.Count);
Assert.AreEqual(newDetails, todoItemsViewModel.ToDoItems[0].Detail);
authViewModel.AppService.Dispose();
}
catch (Exception ex)
{
Assert.True(false, ex.Message);
}
}
