public void RollForwardWithLocalChange()
{
var storage = new ListHistory <int>();
int maximumValue = 10;
for (int i = 1; i < maximumValue; i++)
{
storage.Add(i);
storage.StoreCurrent(new TimeMarker((ulong)i));
}
storage.RollBackToStart();
storage.Add(maximumValue + 1);
for (int i = 1; i < maximumValue; i++)
{
storage.RollForwardTo(new TimeMarker((ulong)i));
Assert.AreEqual(i, storage.Count);
for (int j = 1; j <= i; j++)
{
Assert.IsTrue(storage.Contains(j));
}
}
}
public void RollBackToStart()
{
var storage = new ListHistory <int>();
int maximumValue = 10;
for (int i = 0; i < maximumValue; i++)
{
storage.Add(i);
storage.StoreCurrent(new TimeMarker((ulong)(i + 1)));
}
storage.RollBackToStart();
Assert.That(
storage,
Is.EquivalentTo(new int[0]));
}
public void RollForwardThroughUpdate()
{
var storage = new ListHistory <int>();
int maximumValue = 10;
for (int i = 0; i < maximumValue; i++)
{
storage.Add(i);
}
storage.StoreCurrent(new TimeMarker(1));
storage[5] = maximumValue;
storage.StoreCurrent(new TimeMarker(2));
storage.RollBackToStart();
storage.RollForwardTo(new TimeMarker(2));
Assert.That(
storage,
Is.EquivalentTo(new int[] { 0, 1, 2, 3, 4, maximumValue, 6, 7, 8, 9 }));
}
public void RollForwardThroughClear()
{
var storage = new ListHistory <int>();
int maximumValue = 10;
for (int i = 0; i < maximumValue; i++)
{
storage.Add(i);
}
storage.StoreCurrent(new TimeMarker(1));
storage.Clear();
storage.Add(maximumValue + 1);
storage.StoreCurrent(new TimeMarker(2));
storage.RollBackToStart();
storage.RollForwardTo(new TimeMarker(2));
Assert.That(
storage,
Is.EquivalentTo(new int[] { maximumValue + 1 }));
}
public void RollBackToStartWithNoValues()
{
var storage = new ListHistory <int>();
Assert.DoesNotThrow(() => storage.RollBackToStart());
}