public void RaisesSingleEventWhileInsertingRange()
{
var counter = 0;
var fastCollection = new FastObservableCollection <int>();
fastCollection.AutomaticallyDispatchChangeNotifications = false;
fastCollection.CollectionChanged += (sender, e) => counter++;
fastCollection.InsertItems(new[] { 1, 2, 3, 4, 5 }, 0);
Assert.AreEqual(1, counter);
fastCollection.InsertItems(new[] { 1, 2, 3, 4, 5 }, 0, SuspensionMode.Adding);
Assert.AreEqual(2, counter);
fastCollection.InsertItems(new ArrayList(new[] { 1, 2, 3, 4, 5 }), 0);
Assert.AreEqual(3, counter);
fastCollection.InsertItems(new ArrayList(new[] { 1, 2, 3, 4, 5 }), 0, SuspensionMode.Adding);
Assert.AreEqual(4, counter);
}
public void RaisesSingleAddEventWhileInsertingRangeWithoutSuspensionMode()
{
var eventArgs = default(NotifyCollectionChangedEventArgs);
var fastCollection = new FastObservableCollection <int>();
fastCollection.AutomaticallyDispatchChangeNotifications = false;
fastCollection.CollectionChanged += (sender, e) => eventArgs = e;
fastCollection.InsertItems(new[] { 1, 2, 3, 4, 5 }, 0);
Assert.AreEqual(NotifyCollectionChangedAction.Reset, eventArgs.Action);
}
public void RaisesSingleAddEventWhileInsertingRangeInSuspensionModeAdding()
{
var eventArgs = default(NotifyCollectionChangedEventArgs);
int count = 0;
var fastCollection = new FastObservableCollection <int>();
fastCollection.AutomaticallyDispatchChangeNotifications = false;
fastCollection.CollectionChanged += (sender, e) =>
{
eventArgs = e;
count++;
};
fastCollection.InsertItems(new[] { 1, 2, 3, 4, 5 }, 0, SuspensionMode.Adding);
Assert.AreEqual(NotifyCollectionChangedAction.Add, eventArgs.Action);
Assert.AreEqual(1, count);
}
public void ThrowsInvalidOperationExceptionForInvalidSuspensionMode()
{
var fastCollection = new FastObservableCollection <int>();
fastCollection.AutomaticallyDispatchChangeNotifications = false;
ExceptionTester.CallMethodAndExpectException <InvalidOperationException>(() => fastCollection.InsertItems(new[] { 1, 2, 3, 4, 5 }, 0, SuspensionMode.Removing));
}
public void ThrowsArgumentNullExceptionForNullCollection()
{
var fastCollection = new FastObservableCollection <int>();
fastCollection.AutomaticallyDispatchChangeNotifications = false;
ExceptionTester.CallMethodAndExpectException <ArgumentNullException>(() => fastCollection.InsertItems(null, 0));
ExceptionTester.CallMethodAndExpectException <ArgumentNullException>(() => fastCollection.InsertItems(null, 0, SuspensionMode.Adding));
}