public async Task Retention_ProducedLotOfMessages_FirstMessagesRemoved()
{
var serviceProvider = Host.ConfigureServices(
services => services
.AddLogging()
.AddSilverback()
.UseModel()
.WithConnectionToMessageBroker(
options => options.AddMockedKafka(
mockedKafkaOptions => mockedKafkaOptions.WithDefaultPartitionsCount(1)))
.AddEndpoints(
endpoints => endpoints
.AddOutbound <IIntegrationEvent>(new KafkaProducerEndpoint(DefaultTopicName))
.AddInbound(
new KafkaConsumerEndpoint(DefaultTopicName)
{
Configuration = new KafkaConsumerConfig
{
GroupId = "consumer1",
AutoCommitIntervalMs = 100
}
}))
.AddSingletonBrokerBehavior <SpyBrokerBehavior>()
.AddSingletonSubscriber <OutboundInboundSubscriber>())
.Run();
var publisher = serviceProvider.GetRequiredService <IEventPublisher>();
for (int i = 1; i <= 100; i++)
{
await publisher.PublishAsync(new TestEventOne());
}
await KafkaTestingHelper.WaitUntilAllMessagesAreConsumedAsync();
Subscriber.InboundEnvelopes.Should().HaveCount(100);
DefaultTopic.GetFirstOffset(new Partition(0)).Should().Be(new Offset(0));
DefaultTopic.GetLastOffset(new Partition(0)).Should().Be(new Offset(99));
for (int i = 1; i <= 10; i++)
{
await publisher.PublishAsync(new TestEventOne());
}
await KafkaTestingHelper.WaitUntilAllMessagesAreConsumedAsync();
Subscriber.InboundEnvelopes.Should().HaveCount(110);
DefaultTopic.GetFirstOffset(new Partition(0)).Should().Be(new Offset(10));
DefaultTopic.GetLastOffset(new Partition(0)).Should().Be(new Offset(109));
}