public void InSelection()
        {
            //null checks
            Assert.DoesNotThrow(() => PolyEditorUtility.InSelection(default(GameObject)));

            //no selection test
            Selection.activeObject = null;
            Assert.IsFalse(PolyEditorUtility.InSelection(_testGameObject));

            //selection test
            Selection.activeObject = _testGameObject;
            Assert.IsTrue(PolyEditorUtility.InSelection(_testGameObject));

            //child selection test
            Assert.IsFalse(PolyEditorUtility.InSelection(_childTestGameObject));
        }