public void Clear_Invoke_Success()
{
var collection = new BindingsCollection();
var binding = new Binding(null, new object(), "member");
collection.Add(binding);
collection.Clear();
Assert.Empty(collection);
// Clear again.
collection.Clear();
Assert.Empty(collection);
}
public void Clear_InvokeWithCollectionChanging_CallsHandler()
{
var collection = new BindingsCollection();
var binding = new Binding(null, new object(), "member");
int changingCallCount = 0;
int changedCallCount = 0;
CollectionChangeEventHandler changingHandler = (sender, e) =>
{
Assert.Same(collection, sender);
Assert.Equal(CollectionChangeAction.Refresh, e.Action);
Assert.Null(e.Element);
changingCallCount++;
Assert.True(changingCallCount > changedCallCount);
};
CollectionChangeEventHandler changedHandler = (sender, e) =>
{
Assert.Same(collection, sender);
Assert.Equal(CollectionChangeAction.Refresh, e.Action);
Assert.Null(e.Element);
changedCallCount++;
Assert.Equal(changingCallCount, changedCallCount);
};
collection.Add(binding);
collection.CollectionChanging += changingHandler;
collection.CollectionChanged += changedHandler;
collection.Clear();
Assert.Equal(1, changingCallCount);
Assert.Equal(1, changedCallCount);
Assert.Empty(collection);
// Add again.
collection.Clear();
Assert.Equal(2, changingCallCount);
Assert.Equal(2, changedCallCount);
Assert.Empty(collection);
// Remove handler.
collection.CollectionChanging -= changingHandler;
collection.CollectionChanged -= changedHandler;
collection.Clear();
Assert.Equal(2, changingCallCount);
Assert.Equal(2, changedCallCount);
Assert.Empty(collection);
}
public void Bindings_Clear_Success()
{
var manager = new PropertyManager();
BindingsCollection collection = manager.Bindings;
var binding = new Binding(null, new object(), "member");
collection.Add(binding);
Assert.Same(binding, Assert.Single(collection));
Assert.Same(manager, binding.BindingManagerBase);
collection.Clear();
Assert.Empty(collection);
Assert.Null(binding.BindingManagerBase);
// Clear again.
collection.Clear();
Assert.Empty(collection);
}