public void TestFilterIsMatch()
{
int compareTo = (int)StateEnum.State3;
var source = enumSource.ToList();
var expectedCollection = source.Where(v => v <= compareTo).ToArray();
LessOrEqualFilter <int> filter = GetLessOrEqualFilter <int>();
CollectionViewSource cvs = new();
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);
};
}
Assert.IsFalse(filter.IsActive);
var filtered = GetCollection(view);
Assert.AreEqual(source.Count, filtered.Count);
filter.CompareTo = compareTo;
Assert.IsTrue(filter.IsActive);
view.Refresh();
filtered = GetCollection(view);
Assert.AreEqual(expectedCollection.Length, filtered.Count);
for (int i = 0; i < expectedCollection.Length; i++)
{
Assert.AreEqual(expectedCollection[i], filtered[i]);
}
}
