public void UndoRedoTest()
{
_objectBeingTracked.Id = 2;
_undoService.RecordState();
_objectBeingTracked.Id = 3;
_undoService.RecordState();
_undoService.Undo();
_objectBeingTracked.MutableMember.Text = "Changed";
_undoService.RecordState();
_undoService.Undo();
Assert.IsTrue(_objectBeingTracked.Id == 2 && _objectBeingTracked.MutableMember.Text.Equals("Original"));
}
public void NoEventHandlerTest()
{
_statefulInt = 1;
_individualUndoService.RecordState();
_statefulInt = 2;
_individualUndoService.RecordState();
_individualUndoService.Undo();
Assert.IsTrue(_statefulInt == 1);
_individualUndoService.Redo();
Assert.IsTrue(_statefulInt == 2);
}
public void AggregateUndoServiceUndoRedoTest()
{
// UndoServiceAggregate is created using an IUndoService array:
var undoServiceForInt = new UndoService <int>(GetIntState, SetIntState, null);
var undoServiceForString = new UndoService <string>(GetStringState, SetStringState, null);
IUndoService[] subservices = { undoServiceForInt, undoServiceForString };
var serviceAggregate = new UndoServiceAggregate(subservices);
// Changes are recorded by the individual UndoServices
_statefulInt = 1;
undoServiceForInt.RecordState();
_statefulString = "One";
undoServiceForString.RecordState();
_statefulInt = 2;
undoServiceForInt.RecordState();
_statefulInt = 3;
undoServiceForInt.RecordState();
_statefulString = "Two";
undoServiceForString.RecordState();
/*
* The UndoServiceAggregate provides a unified interface for performing undo/redo on the different tracked objects.
* (You can also perform Undo/Redo on the individual services, which will undo the last change on the corresponding object.)
*/
serviceAggregate.Undo();
Assert.IsTrue(_statefulString.Equals("One"));
Assert.IsTrue(_statefulInt == 3);
serviceAggregate.Undo();
Assert.IsTrue(_statefulString.Equals("One"));
Assert.IsTrue(_statefulInt == 2);
serviceAggregate.Undo();
Assert.IsTrue(_statefulString.Equals("One"));
Assert.IsTrue(_statefulInt == 1);
serviceAggregate.Redo();
Assert.IsTrue(_statefulString.Equals("One"));
Assert.IsTrue(_statefulInt == 2);
serviceAggregate.Redo();
Assert.IsTrue(_statefulString.Equals("One"));
Assert.IsTrue(_statefulInt == 3);
serviceAggregate.Redo();
Assert.IsTrue(_statefulString.Equals("Two"));
Assert.IsTrue(_statefulInt == 3);
}
public void UndoRedoTest()
{
var undoServiceForString = new UndoService <string>(GetStringState, SetStringState, null);
_statefulString = "One";
undoServiceForString.RecordState();
_statefulString = "Two";
undoServiceForString.RecordState();
undoServiceForString.Undo();
Assert.IsTrue(_statefulString.Equals("One"));
undoServiceForString.Redo();
Assert.IsTrue(_statefulString.Equals("Two"));
}
public void IsChangedTest()
{
var trackedObject = new StatefulClass {
TheString = "One", TheInt = 1
};
var undoService = new UndoService <StatefulClassDto>(trackedObject.GetData, trackedObject.SetData, null);
Assert.IsTrue(!undoService.IsStateChanged);
trackedObject.TheString = "Two";
undoService.RecordState();
Assert.IsTrue(undoService.IsStateChanged);
undoService.Undo();
Assert.IsTrue(!undoService.IsStateChanged);
undoService.Redo();
Assert.IsTrue(undoService.IsStateChanged);
undoService.ClearIsStateChangedFlag();
Assert.IsTrue(!undoService.IsStateChanged);
undoService.Undo();
Assert.IsTrue(undoService.IsStateChanged);
undoService.Redo();
Assert.IsTrue(!undoService.IsStateChanged);
}
public void UndoRedoTest()
{
_statefulInt = 1;
_undoServiceForInt.RecordState();
_statefulInt = 2;
_undoServiceForInt.RecordState();
_undoServiceForInt.Undo();
Assert.IsTrue(_statefulInt == 1);
_undoServiceForInt.Redo();
Assert.IsTrue(_statefulInt == 2);
}
