public void CanExecuteChangedEventShouldBeWeak()
{
bool b = false;
Action execute = (() => { });
Func <bool> predicate = (() => b);
var command = new DelegateCommand(execute, predicate);
command.CanExecuteChanged += new EventConsumer().EventHandler;
// Garbage collect the EventConsumer.
GC.Collect();
EventConsumer.Clear();
command.RaiseCanExecuteChanged();
Assert.IsFalse(EventConsumer.EventCalled);
}
public void CanExecuteChangedEventShouldBeWeak()
{
var command1 = new DelegateCommand(() => { }, null);
var command2 = new DelegateCommand <int>(i => { }, null);
var compositeCommand = new CompositeCommand();
compositeCommand.RegisterCommand(command1);
compositeCommand.RegisterCommand(command2);
compositeCommand.CanExecuteChanged += new EventConsumer().EventHandler;
// Garbage collect the EventConsumer.
GC.Collect();
EventConsumer.Clear();
command1.RaiseCanExecuteChanged();
command2.RaiseCanExecuteChanged();
Assert.IsFalse(EventConsumer.EventCalled);
}