UnityTest.UnitTestView.RegisterUndo C# (CSharp) Method

        private static int RegisterUndo()
        {
            #if UNITY_4_0 || UNITY_4_0_1 || UNITY_4_1 || UNITY_4_2
            Undo.RegisterSceneUndo ("UnitTestRunSceneSave");
            return -1;
            #else
            return Undo.GetCurrentGroup ();
            #endif
        }