public void It_throws_exception_when_new_index_is_greater_than_count()
{
var collection = new SynchronizedObservableCollection <string>(new List <string> {
"1", "2", "3"
});
Assert.Throws <ArgumentOutOfRangeException>(() => { collection.Move(0, 4); });
}
public void It_throws_exception_when_old_index_is_less_than_zero()
{
var collection = new SynchronizedObservableCollection <string>(new List <string> {
"1", "2", "3"
});
Assert.Throws <ArgumentOutOfRangeException>(() => { collection.Move(-1, 2); });
}
public void It_moves_the_item_when_new_index_and_old_index_are_in_range()
{
var collection = new SynchronizedObservableCollection <string>(new List <string> {
"1", "2", "3"
});
Assert.DoesNotThrow(() => { collection.Move(0, 2); });
Assert.That(collection.Count, Is.EqualTo(3));
Assert.That(collection[0], Is.EqualTo("2"));
Assert.That(collection[1], Is.EqualTo("3"));
Assert.That(collection[2], Is.EqualTo("1"));
}
public void It_invokes_PropertyChanged_when_new_index_and_old_index_are_in_range()
{
var collection = new SynchronizedObservableCollection <string>(new List <string> {
"1", "2", "3"
});
var propertyChangedEventArgs = new List <PropertyChangedEventArgs>();
((INotifyPropertyChanged)collection).PropertyChanged += (sender, args) => { propertyChangedEventArgs.Add(args); };
collection.Move(0, 2);
Assert.That(propertyChangedEventArgs.Count, Is.EqualTo(1));
Assert.That(propertyChangedEventArgs.Any(p => p.PropertyName.Equals("Item[]")), Is.True);
}
public void It_invokes_CollectionChanged_when_new_index_and_old_index_are_in_range()
{
var collection = new SynchronizedObservableCollection <string>(new List <string> {
"1", "2", "3"
});
NotifyCollectionChangedEventArgs collectionChangedEventArgs = null;
collection.CollectionChanged += (sender, args) => { collectionChangedEventArgs = args; };
collection.Move(0, 2);
Assert.That(collectionChangedEventArgs.Action, Is.EqualTo(NotifyCollectionChangedAction.Move));
Assert.That(collectionChangedEventArgs.OldItems[0], Is.EqualTo("1"));
Assert.That(collectionChangedEventArgs.OldStartingIndex, Is.EqualTo(0));
Assert.That(collectionChangedEventArgs.NewItems[0], Is.EqualTo("1"));
Assert.That(collectionChangedEventArgs.NewStartingIndex, Is.EqualTo(2));
}
