namespace NATS.Server.Tests; public class JetStreamPushConsumerContractTests { [Fact] public async Task Ack_all_advances_floor_and_clears_pending_before_sequence() { await using var fx = await JetStreamApiFixture.StartWithAckAllConsumerAsync(); await fx.PublishManyAsync("orders.created", ["1", "2", "3"]); var first = await fx.FetchAsync("ORDERS", "ACKALL", 3); await fx.AckAllAsync("ORDERS", "ACKALL", first.Messages.Last().Sequence); var pending = await fx.GetPendingCountAsync("ORDERS", "ACKALL"); pending.ShouldBe(0); } }