public void LayoutGroupIterateLayoutChildren() { tlog.Debug(tag, $"LayoutGroupIterateLayoutChildren START"); LayoutItem layoutItem = new LinearLayout(); View view = new View() { ExcludeLayouting = false, }; layoutItem.AttachToOwner(view); var testingTarget = new MyLayoutGroup(); Assert.IsNotNull(testingTarget, "null handle"); Assert.IsInstanceOf <LayoutGroup>(testingTarget, "Should return LayoutGroup instance."); testingTarget.Add(layoutItem); var result = testingTarget.ForeachLayoutChildren(); Assert.AreEqual(1, result.Count(), "should be equal!"); tlog.Debug(tag, $"LayoutGroupIterateLayoutChildren END (OK)"); }