public void DoClear_Should_add_old_elements_When_undone()
{
ICollection <object> source = new List <object>
{
new object(),
new object(),
new object()
};
IUnDoManager manager = Substitute.For <IUnDoManager>();
IUnDo undo = null;
List <object> sourceCopy = source.ToList();
manager.Do(Arg.Do <IUnDo>(i => undo = i));
manager.DoClear(source);
Check.That(undo).IsNotNull();
undo.Do();
Check.That(source.Count).IsEqualTo(0);
undo.Undo();
Check.That(source).ContainsExactly(sourceCopy);
}
public void DoOnDo_Should_call_action()
{
IUnDoManager manager = Substitute.For <IUnDoManager>();
IUnDo undo = null;
bool done = false;
manager.Do(Arg.Do <IUnDo>(i => undo = i));
manager.DoOnDo(() => done = true);
Check.That(undo).IsNotNull();
undo.Do();
Check.That(done).IsTrue();
}
public void Do_IDictionary_Should_remove_element_When_undone()
{
object key = new();
IDictionary <object, object> source = new Dictionary <object, object>();
IUnDoManager manager = Substitute.For <IUnDoManager>();
IUnDo undo = null;
manager.Do(Arg.Do <IUnDo>(i => undo = i));
manager.Do(source, key, null);
Check.That(undo).IsNotNull();
undo.Do();
Check.That(source.ContainsKey(key)).IsTrue();
undo.Undo();
Check.That(source.ContainsKey(key)).IsFalse();
}
