public void produced_checkpoint_tags_are_correctly_ordered()
{
var t = new EventByTypeIndexPositionTagger(new[] {"type1", "type2"});
var zero = t.MakeZeroCheckpointTag();
var zeroEvent = t.MakeCheckpointTag(zero, _zeroEvent);
var zeroEvent2 = t.MakeCheckpointTag(zeroEvent, _zeroEvent);
var first = t.MakeCheckpointTag(zeroEvent2, _firstEvent);
var second = t.MakeCheckpointTag(first, _secondEvent);
var second2 = t.MakeCheckpointTag(zeroEvent, _secondEvent);
var third = t.MakeCheckpointTag(second, _thirdEvent);
Assert.IsTrue(zeroEvent > zero);
Assert.IsTrue(first > zero);
Assert.IsTrue(second > first);
Assert.AreEqual(zeroEvent2, zeroEvent);
Assert.AreEqual(second, second2); // strong order (by tf)
Assert.IsTrue(second2 > zeroEvent);
Assert.IsTrue(second2 > first);
Assert.IsTrue(third > second);
Assert.IsTrue(third > first);
Assert.IsTrue(third > zeroEvent);
Assert.IsTrue(third > zero);
}
public void can_update_by_tf_event_if_with_prior_index_position()
{
var t = new EventByTypeIndexPositionTagger(new[] {"type1", "type2"});
var linkEvent = ReaderSubscriptionMessage.CommittedEventDistributed.Sample(
Guid.NewGuid(), new TFPos(180, 170), "$et-type2", 1, false, Guid.NewGuid(), "$>", false,
Helper.UTF8NoBom.GetBytes("0@stream2"), new byte[0]);
var tag = CheckpointTag.FromEventTypeIndexPositions(
new TFPos(70, 60), new Dictionary<string, int> {{"type1", 2}, {"type2", 2}});
var updated = t.MakeCheckpointTag(tag, linkEvent);
Assert.AreEqual(new TFPos(180, 170), updated.Position);
Assert.AreEqual(2, updated.Streams["type1"]);
Assert.AreEqual(2, updated.Streams["type2"]);
}
public void cannot_update_by_prior_tf_position()
{
var t = new EventByTypeIndexPositionTagger(new[] {"type1", "type2"});
var linkEvent = ReaderSubscriptionMessage.CommittedEventDistributed.Sample(
Guid.NewGuid(), new TFPos(180, 170), "$et-type2", 1, false, Guid.NewGuid(), "$>", false,
Helper.UTF8NoBom.GetBytes("0@stream2"), new byte[0]);
var tag = CheckpointTag.FromEventTypeIndexPositions(
new TFPos(270, 260), new Dictionary<string, int> {{"type1", 2}, {"type2", 2}});
t.MakeCheckpointTag(tag, linkEvent);
}
public void zero_position_tag_is_before_first_event_possible()
{
var t = new EventByTypeIndexPositionTagger(new[] {"type1", "type2"});
var zero = t.MakeZeroCheckpointTag();
var zeroFromEvent = t.MakeCheckpointTag(zero, _zeroEvent);
Assert.IsTrue(zeroFromEvent > zero);
}
