public void FlexLayoutDownCast() { tlog.Debug(tag, $"FlexLayoutDownCast START"); View view = new View() { Size = new Size(400, 400), BackgroundColor = Color.White, Layout = new FlexLayout() { Direction = FlexLayout.FlexDirection.Column, } }; var testingTarget = FlexLayout.DownCast(view); Assert.IsNotNull(testingTarget, "null handle"); Assert.IsInstanceOf <FlexLayout>(testingTarget, "Should return FlexLayout instance."); view.Dispose(); testingTarget.Dispose(); tlog.Debug(tag, $"FlexLayoutDownCast END (OK)"); }