public void ItemsSourceChangedNonGenericShouldBeInvokedWhenItemsSourceChanged()
{
ThreadManager.IsUiThread = true;
bool isItemsSourceChanged = false;
var model = new GridModel { Name = "test" };
var listItems = new List<GridModel> { model };
IGridViewModel gridViewModel = GetViewModel<GridViewModel<GridModel>>();
gridViewModel.ItemsSourceChanged += (sender, data) =>
{
if (isItemsSourceChanged)
throw new InvalidOperationException();
isItemsSourceChanged = true;
gridViewModel.ItemsSource.ShouldEqual(data.Value);
};
gridViewModel.UpdateItemsSource(listItems);
isItemsSourceChanged.ShouldBeTrue();
}
public void SelectedItemChangedGenericShouldBeInvokedWhenSelectedItemChanged()
{
ThreadManager.IsUiThread = true;
bool isFocusedRowChanged = false;
var model = new GridModel { Name = "test" };
var listItems = new List<GridModel> { model };
var gridViewModel = GetViewModel<GridViewModel<GridModel>>();
gridViewModel.SelectedItemChanged += (sender, args) =>
{
if (isFocusedRowChanged)
throw new InvalidOperationException();
isFocusedRowChanged = true;
args.OldValue.ShouldBeNull();
args.NewValue.ShouldEqual(model);
};
gridViewModel.UpdateItemsSource(listItems);
gridViewModel.SelectedItem = model;
isFocusedRowChanged.ShouldBeTrue();
}
public void SetOriginalItemsSourceShouldGetDataFromPrevious()
{
var model = new GridModel { Name = "test" };
var listItems = new List<GridModel> { model };
var viewModel = GetViewModel<GridViewModel<GridModel>>();
viewModel.UpdateItemsSource(listItems);
var newItemsSource = new ObservableCollection<GridModel>();
viewModel.SetOriginalItemsSource(newItemsSource);
newItemsSource.SequenceEqual(listItems).ShouldBeTrue();
}
public void InternalItemsSourceEventsTest()
{
var model = new GridModel { Name = "test" };
var listItems = new List<GridModel> { model };
var viewModel = GetViewModel<GridViewModelMock>();
viewModel.UpdateItemsSource(listItems);
viewModel.ItemsSourceChangingValue.ShouldEqual(listItems);
viewModel.ItemsSource.ShouldBeEmpty();
viewModel.ItemsSourceChangingResult = listItems;
viewModel.UpdateItemsSource(listItems);
viewModel.ItemsSourceChangingValue.ShouldEqual(listItems);
viewModel.ItemsSourceChangedValue.ShouldEqual(viewModel.ItemsSource);
viewModel.ItemsSource.ShouldNotBeNull();
viewModel.ItemsSource.All(listItems.Contains).ShouldBeTrue();
}
public void InternalSelectedRowEventTest()
{
var model = new GridModel { Name = "test" };
var listItems = new List<GridModel> { model };
var viewModel = GetViewModel<GridViewModelMock>();
viewModel.ItemsSourceChangingResult = listItems;
viewModel.UpdateItemsSource(listItems);
viewModel.SelectedItem = model;
viewModel.SelectedItemChanging.ShouldEqual(model);
viewModel.SelectedItem.ShouldBeNull();
viewModel.SelectedItemChangingResult = model;
viewModel.SelectedItem = model;
viewModel.SelectedItem.ShouldEqual(model);
viewModel.SelectedItemChangedOld.ShouldBeNull();
viewModel.SelectedItemChangedNew.ShouldEqual(model);
}
public void FilterShouldFilterRecords()
{
var model = new GridModel { Name = "test" };
var model1 = new GridModel { Name = "test1" };
var listItems = new List<GridModel> { model, model1 };
var gridViewModel = GetViewModel<GridViewModel<GridModel>>();
gridViewModel.Filter = item => item.Name == string.Empty;
gridViewModel.UpdateItemsSource(listItems);
gridViewModel.ItemsSource.Contains(model).ShouldBeFalse();
gridViewModel.ItemsSource.Contains(model1).ShouldBeFalse();
gridViewModel.Filter = item => true;
gridViewModel.ItemsSource.Contains(model).ShouldBeTrue();
gridViewModel.ItemsSource.Contains(model1).ShouldBeTrue();
gridViewModel.Filter = item => item.Name == "test";
gridViewModel.ItemsSource.Contains(model).ShouldBeTrue();
gridViewModel.ItemsSource.Contains(model1).ShouldBeFalse();
}
public void WhenItemsSourceChangedSelectedItemShouldBeSetToNullTest()
{
var model = new GridModel { Name = "test" };
var listItems = new List<GridModel> { model };
var gridViewModel = GetViewModel<GridViewModel<GridModel>>();
gridViewModel.UpdateItemsSource(listItems);
gridViewModel.SelectedItem = model;
gridViewModel.SelectedItem.ShouldEqual(model);
gridViewModel.UpdateItemsSource(null);
gridViewModel.SelectedItem.ShouldBeNull();
}
