public void INCCComplexRemoveLast()
{
var oc = new ObservableCollection <View>();
var wrapper = new ObservableWrapper <View, Button>(oc);
oc.Add(new Stepper());
wrapper.Add(new Button());
wrapper.Add(new Button());
var child = new Button();
wrapper.Add(child);
Button removedResult = null;
int removeIndex = -1;
wrapper.CollectionChanged += (sender, args) =>
{
removedResult = args.OldItems[0] as Button;
removeIndex = args.OldStartingIndex;
};
wrapper.Remove(child);
Assert.AreEqual(child, removedResult);
Assert.AreEqual(2, removeIndex);
}
public void CannotRemoveInternalItem()
{
var observableCollection = new ObservableCollection <View>();
var wrapper = new ObservableWrapper <View, View>(observableCollection);
var child = new View();
observableCollection.Add(child);
Assert.IsEmpty(wrapper);
Assert.False(wrapper.Remove(child));
Assert.Contains(child, observableCollection);
}
public void ReadOnly()
{
var observableCollection = new ObservableCollection <View>();
var wrapper = new ObservableWrapper <View, Button>(observableCollection);
Assert.False(wrapper.IsReadOnly);
wrapper.Add(new Button());
wrapper.IsReadOnly = true;
Assert.True(wrapper.IsReadOnly);
Assert.Throws <NotSupportedException>(() => wrapper.Remove(wrapper[0]));
Assert.Throws <NotSupportedException>(() => wrapper.Add(new Button()));
Assert.Throws <NotSupportedException>(() => wrapper.RemoveAt(0));
Assert.Throws <NotSupportedException>(() => wrapper.Insert(0, new Button()));
Assert.Throws <NotSupportedException>(wrapper.Clear);
}
public void INCCComplexRemoveLast ()
{
var oc = new ObservableCollection<View> ();
var wrapper = new ObservableWrapper<View, Button> (oc);
oc.Add (new Stepper ());
wrapper.Add (new Button ());
wrapper.Add (new Button ());
var child = new Button ();
wrapper.Add (child);
Button removedResult = null;
int removeIndex = -1;
wrapper.CollectionChanged += (sender, args) => {
removedResult = args.OldItems[0] as Button;
removeIndex = args.OldStartingIndex;
};
wrapper.Remove (child);
Assert.AreEqual (child, removedResult);
Assert.AreEqual (2, removeIndex);
}
public void ReadOnly ()
{
var observableCollection = new ObservableCollection<View> ();
var wrapper = new ObservableWrapper<View, Button> (observableCollection);
Assert.False (wrapper.IsReadOnly);
wrapper.Add (new Button ());
wrapper.IsReadOnly = true;
Assert.True (wrapper.IsReadOnly);
Assert.Throws<NotSupportedException> (() => wrapper.Remove (wrapper[0]));
Assert.Throws<NotSupportedException> (() => wrapper.Add (new Button ()));
Assert.Throws<NotSupportedException> (() => wrapper.RemoveAt (0));
Assert.Throws<NotSupportedException> (() => wrapper.Insert (0, new Button ()));
Assert.Throws<NotSupportedException> (wrapper.Clear);
}
public void CannotRemoveInternalItem ()
{
var observableCollection = new ObservableCollection<View> ();
var wrapper = new ObservableWrapper<View, View> (observableCollection);
var child = new View ();
observableCollection.Add (child);
Assert.IsEmpty (wrapper);
Assert.False (wrapper.Remove (child));
Assert.Contains (child, observableCollection);
}