public void TestFilterIsMatch()
{
ObjectEqualFilter filter = GetEqualFilter();
CollectionViewSource cvs = new();
var source = enumSource.ToList();
cvs.Source = source;
ICollectionView view = cvs.View;
Assert.IsTrue(view.CanFilter);
using (IDisposable defer = view.DeferRefresh()) {
view.Filter = el => {
BolapanControl.ItemsFilter.FilterEventArgs e = new(el);
filter.IsMatch(null, e);
return(e.Accepted);
};
}
var filtered = GetCollection(view);
Assert.AreEqual(source.Count, filtered.Count);
List <int?> selected = new(new int?[] { source[0], source[1] });
List <int?> unselected = new();
filter.SelectedValuesChanged(addedItems: selected, removedItems: unselected);
view.Refresh();
filtered = GetCollection(view);
Assert.AreEqual(selected.Count, filtered.Count);
Assert.AreEqual(selected[0], filtered[0]);
Assert.AreEqual(selected[1], filtered[1]);
selected = new(new int?[] { source[^ 1] });
public void CTOR()
{
ObjectEqualFilter filter = GetEqualFilter();
Assert.IsNotNull(filter);
Assert.AreEqual(0, filter.SelectedValues.Count);
Assert.IsFalse(filter.IsActive);
}
public void TestAvailableValues()
{
ObjectEqualFilter filter = GetEqualFilter();
var source = enumSource.ToList();
filter.AvailableValues = source;
CollectionViewSource cvs = new();
cvs.Source = filter.AvailableValues;
ICollectionView view = cvs.View;
var currentView = GetCollection(view);
Assert.AreEqual(source.Count, currentView.Count);
}
protected static Filter?NewFilter(FilterPresenter filterPresenter, ItemPropertyInfo propertyInfo)
{
#if DEBUG
Microsoft.VisualStudio.TestTools.UnitTesting.Assert.IsNotNull(filterPresenter);
Microsoft.VisualStudio.TestTools.UnitTesting.Assert.IsNotNull(propertyInfo);
#endif
Type propertyType = propertyInfo.PropertyType;
if (filterPresenter.ItemProperties.Contains(propertyInfo) &&
!propertyType.IsEnum
)
{
Type generic = typeof(IEquatable <>);
Type[] tArgs = new Type[] { propertyType };
Type iquatableType = generic.MakeGenericType(tArgs);
Filter?filter = null;
if (iquatableType.IsAssignableFrom(propertyType))
{
filter = Activator.CreateInstance(
typeof(EqualFilter <>).MakeGenericType(propertyType),
propertyInfo,
GetAvailableValuesQuery(filterPresenter, propertyInfo)
) as Filter;
}
else
{
filter = new ObjectEqualFilter(propertyInfo, GetAvailableValuesQuery(filterPresenter, propertyInfo));
}
if (filter != null)
{
filter.Attach(filterPresenter);
}
return(filter);
}
return(null);
}
