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]);
}
}
public void TryGetFilter()
{
#pragma warning disable CS8604 // Possible null reference argument.
#pragma warning disable CS8602 // Dereference of a possibly null reference.
var items = StateItem.All;
var compareTo = StateEnum.State3;
var expected = Enum.GetValues <StateEnum>()
.Where(st => st <= compareTo)
.Select(st => new StateItem(st))
.ToList();
ListCollectionView view = new(items);
Assert.IsTrue(view.CanFilter);
Assert.IsNotNull(view.ItemProperties);
FilterPresenter?filterPresenter = FilterPresenter.Get(view);
Assert.IsNotNull(filterPresenter);
LessOrEqualFilterInitializer initializer = new();
LessOrEqualFilter <int>? filter = initializer.TryCreateFilter(filterPresenter, nameof(StateItem.StateId)) as LessOrEqualFilter <int>;
Assert.IsNotNull(filter);
Assert.IsFalse(filter.IsActive);
Assert.AreSame(filterPresenter, filter.FilterPresenter);
Assert.AreEqual(view.Count, items.Count);
filter.CompareTo = (int)compareTo;
Assert.IsTrue(filter.IsActive);
var filtered = FilterPresenterTest.GetCollection(view);
Assert.AreEqual(expected.Count, filtered.Count);
Assert.AreEqual(expected[0].StateId, ((StateItem)filtered[0]).StateId);
Assert.AreEqual(expected[^ 1].StateId, ((StateItem)filtered[^ 1]).StateId);
public void CTOR()
{
LessOrEqualFilter <int> filter = GetLessOrEqualFilter <int>();
Assert.IsNotNull(filter);
Assert.AreEqual((int?)null, filter.CompareTo);
Assert.IsFalse(filter.IsActive);
filter.CompareTo = 4;
Assert.IsTrue(filter.IsActive);
filter.CompareTo = null;
Assert.IsFalse(filter.IsActive);
}
public void TestAttach()
{
LessOrEqualFilter <int> filter = GetLessOrEqualFilter <int>();
var source = enumSource.ToList();
var filterPresenter = FilterPresenter.Get(source);
Assert.IsNotNull(filterPresenter);
Assert.IsFalse(filter.IsActive);
filter.Attach(filterPresenter);
var view = filterPresenter.CollectionView;
var filtered = GetCollection(view);
Assert.AreEqual(source.Count, filtered.Count);
filter.CompareTo = (int)StateEnum.State3;
Assert.IsTrue(filter.IsActive);
filtered = GetCollection(view);
Assert.AreEqual(4, filtered.Count);
Assert.AreEqual((int)StateEnum.State0, filtered[0]);
Assert.AreEqual((int)StateEnum.State1, filtered[1]);
Assert.AreEqual((int)StateEnum.State2, filtered[2]);
Assert.AreEqual((int)StateEnum.State3, filtered[3]);
}
