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 RemoveItems()
{
var list = new ListHistory <string>
{
"a",
"b",
"c",
"d",
"e",
"f",
};
list.Remove("a");
Assert.IsFalse(list.Contains("a"));
list.Remove("b");
Assert.IsFalse(list.Contains("b"));
list.Remove("c");
Assert.IsFalse(list.Contains("c"));
list.Remove("d");
Assert.IsFalse(list.Contains("d"));
list.Remove("e");
Assert.IsFalse(list.Contains("e"));
list.Remove("f");
Assert.IsFalse(list.Contains("f"));
}
public void RollBackMultipleTimes()
{
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)));
}
for (int i = maximumValue; i > 0; i--)
{
storage.RollBackTo(new TimeMarker((ulong)i));
Assert.AreEqual(i, storage.Count);
for (int j = 1; j <= i; j++)
{
Assert.IsTrue(storage.Contains(j - 1));
}
}
}