public void MarkClearsForwardHistory()
{
var timeline = new Timeline(BuildStorageOfType);
var firstMark = timeline.Mark();
var obj = timeline.AddToTimeline(BuildObject);
timeline.Mark();
timeline.RemoveFromTimeline(obj.HistoryId);
var thirdMark = timeline.Mark();
timeline.RollBackTo(firstMark);
Assert.IsTrue(timeline.HasObjectEverExisted(obj.HistoryId));
Assert.IsFalse(timeline.DoesObjectExistCurrently(obj.HistoryId));
timeline.AddToTimeline(BuildObject);
timeline.Mark();
Assert.IsFalse(timeline.HasObjectEverExisted(obj.HistoryId));
Assert.IsFalse(timeline.DoesObjectExistCurrently(obj.HistoryId));
timeline.RollForwardTo(thirdMark);
Assert.IsFalse(timeline.HasObjectEverExisted(obj.HistoryId));
Assert.IsFalse(timeline.DoesObjectExistCurrently(obj.HistoryId));
}
public void RollForwardWithLocalChange()
{
var timeline = new Timeline(BuildStorageOfType);
timeline.Mark();
var obj = timeline.AddToTimeline(BuildObject);
timeline.Mark();
obj.SomeValue = 1;
obj.LotsOfValues.Add(2);
var firstChange = timeline.Mark();
obj.SomeValue = 2;
obj.LotsOfValues.Add(4);
var secondChange = timeline.Mark();
timeline.RollBackTo(firstChange);
obj.SomeValue = 3;
obj.LotsOfValues.Add(8);
var otherObj = timeline.AddToTimeline(BuildObject);
timeline.RollForwardTo(secondChange);
Assert.AreEqual(2, obj.SomeValue);
Assert.That(
obj.LotsOfValues,
Is.EquivalentTo(new[] { 2, 4 }));
Assert.IsFalse(timeline.DoesObjectExistCurrently(otherObj.HistoryId));
Assert.IsFalse(timeline.HasObjectEverExisted(otherObj.HistoryId));
}
public void RollBackFromDeath()
{
var timeline = new Timeline(BuildStorageOfType);
timeline.Mark();
var obj = timeline.AddToTimeline(BuildObject);
timeline.Mark();
int maximumValue = 10;
obj.SomeValue = maximumValue;
for (int i = 0; i < maximumValue; i++)
{
obj.LotsOfValues.Add(i);
}
var changeMarker = timeline.Mark();
timeline.RemoveFromTimeline(obj.HistoryId);
timeline.Mark();
Assert.IsTrue(timeline.HasObjectEverExisted(obj.HistoryId));
Assert.IsFalse(timeline.DoesObjectExistCurrently(obj.HistoryId));
timeline.RollBackTo(changeMarker);
var restoredObj = timeline.IdToObject <MockHistoryObject>(obj.HistoryId);
Assert.IsNotNull(restoredObj);
Assert.AreNotSame(obj, restoredObj);
Assert.AreEqual(obj.HistoryId, restoredObj.HistoryId);
Assert.AreEqual(maximumValue, restoredObj.SomeValue);
Assert.AreEqual(maximumValue, restoredObj.LotsOfValues.Count);
}
public void RollBackToBeforeBeginning()
{
var timeline = new Timeline(BuildStorageOfType);
timeline.Mark();
var obj = timeline.AddToTimeline(BuildObject);
timeline.Mark();
var objectChangeMarkers = new List <TimeMarker>();
int maximumValue = 10;
for (int i = 0; i < maximumValue; i++)
{
obj.SomeValue = i;
obj.LotsOfValues.Add(i);
var marker = timeline.Mark();
objectChangeMarkers.Add(marker);
}
timeline.RollBackTo(TimeMarker.TheBeginOfTime);
Assert.IsTrue(timeline.HasObjectEverExisted(obj.HistoryId));
Assert.IsFalse(timeline.DoesObjectExistCurrently(obj.HistoryId));
// Remember that the obj has been cut from the timeline but because
// we have a reference to it, it's not dead yet. However the storage
// should have been rolled back
Assert.AreEqual(0, obj.SomeValue);
Assert.AreEqual(0, obj.LotsOfValues.Count);
}
public void AddToTimelineWithoutMark()
{
var timeline = new Timeline(BuildStorageOfType);
timeline.Mark();
var obj = timeline.AddToTimeline(BuildObject);
Assert.IsNotNull(obj);
Assert.IsTrue(timeline.HasObjectEverExisted(obj.HistoryId));
Assert.IsTrue(timeline.DoesObjectExistCurrently(obj.HistoryId));
}
public void DeleteFromTimelineAtSameTimeAsCreation()
{
var timeline = new Timeline(BuildStorageOfType);
timeline.Mark();
var obj = timeline.AddToTimeline <MockHistoryObject>(BuildObject);
timeline.RemoveFromTimeline(obj.HistoryId);
Assert.IsFalse(timeline.HasObjectEverExisted(obj.HistoryId));
Assert.IsFalse(timeline.DoesObjectExistCurrently(obj.HistoryId));
}
public void RemoveFromTimelineBeforeMark()
{
var timeline = new Timeline(BuildStorageOfType);
timeline.Mark();
var obj = timeline.AddToTimeline(BuildObject);
timeline.Mark();
timeline.RemoveFromTimeline(obj.HistoryId);
Assert.IsTrue(timeline.HasObjectEverExisted(obj.HistoryId));
Assert.IsFalse(timeline.DoesObjectExistCurrently(obj.HistoryId));
}
