Add more mono trickery
@ -117,9 +117,11 @@ namespace Avalonia.Markup.UnitTests.Parsers
var result = run();
result.Item1.Subscribe(x => { });
GC.Collect();
// Mono trickery
GC.Collect(2);
GC.WaitForPendingFinalizers();
Assert.Null(result.Item2.Target);
}