public void RollBackPastFirstValue()
{
var storage = new ValueHistory <int>();
int maximumValue = 10;
for (int i = 1; i < maximumValue; i++)
{
storage.Current = i;
storage.StoreCurrent(new TimeMarker((ulong)(i + 1)));
}
storage.RollBackTo(new TimeMarker(0));
int storedValue = storage;
Assert.AreEqual(0, storedValue);
}
public void RollForwardPastLastValue()
{
var storage = new ValueHistory <int>();
int maximumValue = 10;
for (int i = 0; i < maximumValue; i++)
{
storage.Current = i;
storage.StoreCurrent(new TimeMarker((ulong)(i + 1)));
}
storage.RollBackTo(new TimeMarker(5));
storage.RollForwardTo(new TimeMarker((ulong)(maximumValue + 1)));
int storedValue = storage;
Assert.AreEqual(maximumValue - 1, storedValue);
}
public void RollBackToPreviousValue()
{
var storage = new ValueHistory <int>();
int maximumValue = 10;
for (int i = 0; i < maximumValue; i++)
{
storage.Current = i;
storage.StoreCurrent(new TimeMarker((ulong)(i + 1)));
}
for (int i = maximumValue; i > 0; i--)
{
storage.RollBackTo(new TimeMarker((ulong)i));
int storedValue = storage;
Assert.AreEqual(i - 1, storedValue);
}
}