public void RollBackFromDeathPastCreation()
{
var id = new HistoryId();
var timeline = new ObjectTimeline <MockHistoryObject>(id, BuildStorageOfType, BuildObject);
var creationTime = new TimeMarker(1);
timeline.AddToTimeline();
timeline.Mark(creationTime);
var deletionTime = new TimeMarker(2);
timeline.DeleteFromTimeline();
timeline.Mark(deletionTime);
Assert.DoesNotThrow(() => timeline.RollBackTo(new TimeMarker(0)));
Assert.IsFalse(timeline.IsAlive());
Assert.IsNull(timeline.Object);
}
public void AddToTimeline()
{
var id = new HistoryId();
var timeline = new ObjectTimeline <MockHistoryObject>(id, BuildStorageOfType, BuildObject);
Assert.IsFalse(timeline.IsAlive());
timeline.AddToTimeline();
var marker = new TimeMarker(1);
timeline.Mark(marker);
Assert.IsTrue(timeline.IsAlive());
Assert.AreEqual(marker, timeline.CreationTime);
Assert.IsNull(timeline.DeletionTime);
var obj = timeline.Object;
Assert.AreEqual(0, obj.SomeValue);
Assert.AreEqual(0, obj.LotsOfValues.Count);
}
public void RollForwardFromBeforeCreationToPastDeath()
{
var id = new HistoryId();
var timeline = new ObjectTimeline <MockHistoryObject>(id, BuildStorageOfType, BuildObject);
var creationTime = new TimeMarker(2);
timeline.AddToTimeline();
timeline.Mark(creationTime);
var deletionTime = new TimeMarker(3);
timeline.DeleteFromTimeline();
timeline.Mark(deletionTime);
timeline.RollBackTo(new TimeMarker(1));
Assert.IsFalse(timeline.IsAlive());
Assert.IsNull(timeline.Object);
timeline.RollForwardTo(new TimeMarker(4));
Assert.IsFalse(timeline.IsAlive());
Assert.IsNull(timeline.Object);
}
public void RollForwardToAfterCreation()
{
var id = new HistoryId();
var timeline = new ObjectTimeline <MockHistoryObject>(id, BuildStorageOfType, BuildObject);
var creationTime = new TimeMarker(2);
timeline.AddToTimeline();
timeline.Mark(creationTime);
timeline.Object.SomeValue = 1;
timeline.Object.LotsOfValues.Add(2);
timeline.Mark(new TimeMarker(3));
timeline.RollBackTo(new TimeMarker(1));
Assert.IsFalse(timeline.IsAlive());
timeline.RollForwardTo(new TimeMarker(3));
Assert.AreEqual(1, timeline.Object.SomeValue);
Assert.That(
timeline.Object.LotsOfValues,
Is.EquivalentTo(new int[] { 2 }));
}
public void RollBackToBeforeBeginning()
{
var id = new HistoryId();
var timeline = new ObjectTimeline <MockHistoryObject>(id, BuildStorageOfType, BuildObject);
var creationTime = new TimeMarker(1);
timeline.AddToTimeline();
timeline.Mark(creationTime);
int maximumValue = 10;
for (int i = 0; i < maximumValue; i++)
{
timeline.Object.SomeValue = i;
timeline.Object.LotsOfValues.Add(i);
timeline.Mark(new TimeMarker((ulong)(i + 2)));
}
timeline.RollBackTo(new TimeMarker(0));
Assert.IsFalse(timeline.IsAlive());
Assert.IsNull(timeline.Object);
}