void MoveTestHelper()
{
ObservableCollectionEx <GenericParameterHelper> target = CreateTargetHelper <GenericParameterHelper>();
GenericParameterHelper item0 = new GenericParameterHelper(0);
GenericParameterHelper item1 = new GenericParameterHelper(1);
GenericParameterHelper item2 = new GenericParameterHelper(2);
GenericParameterHelper item3 = new GenericParameterHelper(3);
GenericParameterHelper item4 = new GenericParameterHelper(4);
target.Add(item0);
target.Add(item1);
target.Add(item2);
target.Add(item3);
target.Add(item4);
this._firedCollectionEvents.Clear();
this._firedPropertyEvents.Clear();
Assert.IsTrue(1 == target.IndexOf(item1));
target.Move(1, 3);
Assert.IsTrue(3 == target.IndexOf(item1));
this._firedCollectionEvents.Clear();
this._firedPropertyEvents.Clear();
using (var iDisabled = target.DisableNotifications())
{
iDisabled.Move(3, 1);
iDisabled.Move(1, 3);
iDisabled.Move(3, 1);
iDisabled.Move(1, 3);
iDisabled.Move(3, 1);
}
Assert.IsTrue(0 == this._firedPropertyEvents.Count, "Incorrect number of PropertyChanged notifications");
Assert.IsTrue(0 == this._firedCollectionEvents.Count, "Incorrect number of CollectionChanged notifications");
this._firedCollectionEvents.Clear();
this._firedPropertyEvents.Clear();
using (var iDelayed = target.DelayNotifications())
{
iDelayed.Move(1, 3);
try
{
iDelayed.Move(3, 1);
Assert.Fail("Only one move allowed");
}
catch (Exception e)
{
Assert.IsInstanceOfType(e, typeof(InvalidOperationException));
}
}
Assert.IsTrue(1 == this._firedPropertyEvents.Count, "Incorrect number of PropertyChanged notifications");
Assert.IsTrue(1 == this._firedCollectionEvents.Count, "Incorrect number of CollectionChanged notifications");
}
/// <summary>
///A test for GetDelayedNotifier
///</summary>
public void DelayedNotificationTestHelper <T>() where T : new()
{
ObservableCollectionEx <T> target = CreateTargetHelper <T>();
T item0 = new T();
T item1 = new T();
T item2 = new T();
T item3 = new T();
T item4 = new T();
// Testing Add
this._firedCollectionEvents.Clear();
this._firedPropertyEvents.Clear();
using (ObservableCollectionEx <T> iTarget = target.DelayNotifications())
{
iTarget.Add(item0);
iTarget.Add(item1);
iTarget.Add(item2);
iTarget.Add(item3);
iTarget.Add(item4);
Assert.IsTrue(5 == target.Count, "Count is incorrect");
Assert.IsTrue(0 == this._firedPropertyEvents.Count, "Incorrect number of PropertyChanged notifications");
Assert.IsTrue(0 == this._firedCollectionEvents.Count, "Incorrect number of CollectionChanged notifications");
}
Assert.IsTrue(5 == target.Count, "Count is incorrect");
Assert.IsTrue(2 == this._firedPropertyEvents.Count, "Incorrect number of PropertyChanged notifications");
Assert.IsTrue(1 == this._firedCollectionEvents.Count, "Incorrect number of CollectionChanged notifications");
// Testing Replace
this._firedCollectionEvents.Clear();
this._firedPropertyEvents.Clear();
using (ObservableCollectionEx <T> iTarget = target.DelayNotifications())
{
iTarget[1] = item0;
iTarget[2] = item1;
iTarget[3] = item2;
iTarget[4] = item3;
iTarget[0] = item4;
using (ObservableCollectionEx <T> iNested = iTarget.DelayNotifications())
{
iNested.Add(item4);
iNested.Add(item4);
Assert.IsTrue(0 == this._firedPropertyEvents.Count, "Incorrect number of PropertyChanged notifications");
Assert.IsTrue(0 == this._firedCollectionEvents.Count, "Incorrect number of CollectionChanged notifications");
}
Assert.IsTrue(7 == target.Count, "Count is incorrect");
Assert.IsTrue(2 == this._firedPropertyEvents.Count, "Incorrect number of PropertyChanged notifications");
Assert.IsTrue(1 == this._firedCollectionEvents.Count, "Incorrect number of CollectionChanged notifications");
}
Assert.IsTrue(7 == target.Count, "Count is incorrect");
Assert.IsTrue(3 == this._firedPropertyEvents.Count, "Incorrect number of PropertyChanged notifications");
Assert.IsTrue(2 == this._firedCollectionEvents.Count, "Incorrect number of CollectionChanged notifications");
// Testing Remove
this._firedCollectionEvents.Clear();
this._firedPropertyEvents.Clear();
using (ObservableCollectionEx <T> iTarget = target.DelayNotifications())
{
iTarget.Remove(item0);
iTarget.Remove(item1);
iTarget.Remove(item2);
iTarget.Remove(item3);
iTarget.Remove(item4);
Assert.IsTrue(2 == target.Count, "Count is incorrect");
Assert.IsTrue(0 == this._firedPropertyEvents.Count, "Incorrect number of PropertyChanged notifications");
Assert.IsTrue(0 == this._firedCollectionEvents.Count, "Incorrect number of CollectionChanged notifications");
try
{
iTarget.Add(item0);
Assert.Fail("Mixed operation is not handled");
}
catch (Exception e)
{
Assert.IsInstanceOfType(e, typeof(InvalidOperationException));
}
}
Assert.IsTrue(3 == target.Count, "Count is incorrect");
Assert.IsTrue(2 == this._firedPropertyEvents.Count, "Incorrect number of PropertyChanged notifications");
Assert.IsTrue(1 == this._firedCollectionEvents.Count, "Incorrect number of CollectionChanged notifications");
this._firedCollectionEvents.Clear();
this._firedPropertyEvents.Clear();
using (ObservableCollectionEx <T> iTarget = target.DelayNotifications())
{
iTarget.Clear();
}
Assert.IsTrue(0 == target.Count, "Count is incorrect");
Assert.IsTrue(2 == this._firedPropertyEvents.Count, "Incorrect number of PropertyChanged notifications");
Assert.IsTrue(1 == this._firedCollectionEvents.Count, "Incorrect number of CollectionChanged notifications");
}
