public void Execute()
{
var expectedCount = _actualCount;
_sut.Execute();
Assert.AreNotEqual(expectedCount, _actualCount);
Assert.IsTrue(expectedCount < _actualCount);
}
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_ThrowsInvalidCastException()
{
Assert.ThrowsException <InvalidCastException>(
() => _sut.Execute(""));
}