OnPartitionsAssignedNotSet.cs

// Copyright 2016-2017 Confluent Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Refer to LICENSE for more information.

#pragma warning disable xUnit1026

using System;
using Xunit;


namespace Confluent.Kafka.IntegrationTests
{
    /// <summary>
    ///     Test that Assign gets called automatically in a scenario where a
    ///     handler has not been added to OnPartitionsAssigned
    ///     (deserializing Consumer)
    /// </summary>
    public partial class Tests
    {
        [Theory, MemberData(nameof(KafkaParameters))]
        public void OnPartitionsAssignedNotSet(string bootstrapServers)
        {
            LogToFile("start OnPartitionsAssignedNotSet");

            var consumerConfig = new ConsumerConfig
            {
                GroupId = Guid.NewGuid().ToString(),
                BootstrapServers = bootstrapServers,
                SessionTimeoutMs = 6000
            };

            var producerConfig = new ProducerConfig { BootstrapServers = bootstrapServers };

            // Producing onto the topic to make sure it exists.
            using (var producer = new ProducerBuilder<byte[], byte[]>(producerConfig).Build())
            {
                var dr = producer.ProduceAsync(singlePartitionTopic, new Message<byte[], byte[]> { Value = Serializers.Utf8.Serialize("test string", SerializationContext.Empty) }).Result;
                Assert.NotEqual(Offset.Unset, dr.Offset);
                producer.Flush(TimeSpan.FromSeconds(10));
            }

            using (var consumer = new ConsumerBuilder<byte[], byte[]>(consumerConfig).Build())
            {
                consumer.Subscribe(singlePartitionTopic);
                Assert.Empty(consumer.Assignment);
                consumer.Consume(TimeSpan.FromSeconds(10));
                Assert.Single(consumer.Assignment);
                Assert.Equal(singlePartitionTopic, consumer.Assignment[0].Topic);

                consumer.Close();
            }
            
            Assert.Equal(0, Library.HandleCount);
            LogToFile("end   OnPartitionsAssignedNotSet");
        }
    }
}