public void CannotExecute()
        {
            int expectedCount = _actualCount;
            var sut           = new CommandReversibleAndDisableAble <int?>(
                o => false, _actionToExecute, _undoAction);

            sut.Execute(1);
            Assert.AreEqual(expectedCount, _actualCount);

            sut.Reverse(2);
            Assert.AreEqual(expectedCount, _actualCount);

            bool actualResult = sut.CanExecute(1);

            Assert.AreEqual(expected: false, actualResult);
        }
        public void CanExecute()
        {
            var actualResult = _sut.CanExecute(1);

            Assert.AreEqual(expected: true, actualResult);
        }