public void LayoutTracker_leak_test()
{
RunInMainThread(() =>
{
AssertIsGarbageCollected(
() =>
{
BehaviorSubject <IEnumerable <IControl> > innerControls =
new BehaviorSubject <IEnumerable <IControl> >(Enumerable.Empty <IControl>());
var container = LayoutTracker.Create(
x => innerControls.CachePerElement(y => x.TrackVisualBounds(frame => { }, y)).StackFromLeft());
container.MountRoot();
return(new { innerControls, container });
},
env =>
{
var innerControls = env.innerControls;
var rectangleHeight = new BehaviorSubject <Points>(33);
var rectangle = Shapes.Rectangle(fill: Brush.Transparent).WithWidth(rectangleHeight);
Assert.That(rectangleHeight.HasObservers, Is.False);
innerControls.OnNext(new[] { rectangle });
Assert.That(rectangleHeight.HasObservers, Is.True);
innerControls.OnNext(Enumerable.Empty <IControl>());
Assert.That(rectangleHeight.HasObservers, Is.False);
return(rectangle);
});
});
}