public void ShouldBeAbleToRollbackASnapshot()
{
var items = new List <object> {
1, 2
};
var tokenizableStreamBase = new TokenizableStreamBase <object>(() => items);
Assert.AreEqual(1, tokenizableStreamBase.Current);
tokenizableStreamBase.TakeSnapshot();
tokenizableStreamBase.Consume();
Assert.AreEqual(2, tokenizableStreamBase.Current);
tokenizableStreamBase.RollbackSnapshot();
Assert.AreEqual(1, tokenizableStreamBase.Current);
}
public void ShouldBeAbleToRollbackASnapshotAfterTheLastItemHasBeenConsumed()
{
var items = new List <object> {
1, 2
};
var tokenizableStreamBase = new TokenizableStreamBase <object>(() => items);
Assert.AreEqual(1, tokenizableStreamBase.Current);
tokenizableStreamBase.TakeSnapshot();
tokenizableStreamBase.Consume();
tokenizableStreamBase.Consume();
tokenizableStreamBase.Consume();
Assert.IsTrue(tokenizableStreamBase.IsAtEnd());
tokenizableStreamBase.RollbackSnapshot();
Assert.AreEqual(1, tokenizableStreamBase.Current);
}