internal TimeSpan NotifyMethodsWithReflection(int times)
{
var view = new SomeView();
var viewModel = new SomeViewModel();
viewModel.SubscribeWeakly(x => x.Flag, view.OnFlagChanged);
var stopwatch = Stopwatch.StartNew();
for (var i = 0; i < times; i++)
viewModel.NotifyPropertyChanged();
stopwatch.Stop();
return stopwatch.Elapsed;
}
public void PropertyChanged_event_handler_should_be_called_when_GC_collected_and_subscriber_is_used_aftrewards()
{
// Arrange
var view = new SomeView();
var viewModel = new SomeViewModel();
viewModel.SubscribeWeakly(view, (x, _, e) => x.OnPropertyChanged());
// Act
GC.Collect();
viewModel.NotifyPropertyChanged();
// Assert
view.Observer.IsPropertyChangedHandled.Should().BeTrue();
}
internal TimeSpan SubcribeMethodsWithReflection(int times)
{
var view = new SomeView();
var viewModel = new SomeViewModel();
var stopwatch = Stopwatch.StartNew();
for (var i = 0; i < times; i++)
{
viewModel.SubscribeWeakly(x => x.Flag, view.OnFlagChanged);
}
stopwatch.Stop();
return(stopwatch.Elapsed);
}
internal TimeSpan SubcribeHandlers(int times)
{
var view = new SomeView();
var viewModel = new SomeViewModel();
var stopwatch = Stopwatch.StartNew();
for (var i = 0; i < times; i++)
{
viewModel.SubscribeWeakly(view, (v, m, e) => v.OnFlagChanged(false));
}
stopwatch.Stop();
return(stopwatch.Elapsed);
}
public void PropertyChanged_event_handler_should_not_be_called_when_GC_collected_and_subscriber_is_not_used_aftrewards()
{
// Arrange
var view = new SomeView();
var viewModel = new SomeViewModel();
viewModel.SubscribeWeakly(view, (x, _, e) => x.OnPropertyChanged());
// Act
var observer = view.Observer;
// ReSharper disable RedundantAssignment
view = null;
// ReSharper restore RedundantAssignment
GC.Collect();
viewModel.NotifyPropertyChanged();
// Assert
observer.IsPropertyChangedHandled.Should().BeFalse();
}
internal TimeSpan SubcribeHandlers(int times)
{
var view = new SomeView();
var viewModel = new SomeViewModel();
var stopwatch = Stopwatch.StartNew();
for (var i = 0; i < times; i++)
viewModel.SubscribeWeakly(view, (v, m, e) => v.OnFlagChanged(false));
stopwatch.Stop();
return stopwatch.Elapsed;
}
public void PropertyChanged_event_handler_should_not_be_called_when_GC_collected_and_subscriber_is_not_used_aftrewards()
{
// Arrange
var view = new SomeView();
var viewModel = new SomeViewModel();
viewModel.SubscribeWeakly(view, (x, _, e) => x.OnPropertyChanged());
// Act
var observer = view.Observer;
// ReSharper disable RedundantAssignment
view = null;
// ReSharper restore RedundantAssignment
GC.Collect();
viewModel.NotifyPropertyChanged();
// Assert
observer.IsPropertyChangedHandled.Should().BeFalse();
}
public void PropertyChanged_event_handler_should_be_called_when_GC_collected_and_subscriber_is_used_aftrewards()
{
// Arrange
var view = new SomeView();
var viewModel = new SomeViewModel();
viewModel.SubscribeWeakly(view, (x, _, e) => x.OnPropertyChanged());
// Act
GC.Collect();
viewModel.NotifyPropertyChanged();
// Assert
view.Observer.IsPropertyChangedHandled.Should().BeTrue();
}