text: # Licensed to the Apache Software Foundation (ASF) under one or more
  # contributor license agreements.  See the NOTICE file distributed with
  # this work for additional information regarding copyright ownership.
  # The ASF licenses this file to You 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.
  
  from ducktape.mark import parametrize
  from ducktape.utils.util import wait_until
  
  from kafkatest.services.zookeeper import ZookeeperService
  from kafkatest.services.kafka import KafkaService
  from kafkatest.services.verifiable_producer import VerifiableProducer
  from kafkatest.services.console_consumer import ConsoleConsumer
  from kafkatest.tests.produce_consume_validate import ProduceConsumeValidateTest
  from kafkatest.utils import is_int_with_prefix
  
  from kafkatest.version import DEV_BRANCH, LATEST_0_10_0, LATEST_0_10_1, LATEST_0_10_2, LATEST_0_11_0, LATEST_1_0, LATEST_1_1, KafkaVersion
  from kafkatest.version import CDK_2_1_0, CDK_2_1_1, CDK_2_1_2, CDK_2_2_0, CDK_3_0_0, CDK_3_1_0, CDH_6_0_0
  
  class ClientCompatibilityProduceConsumeTest(ProduceConsumeValidateTest):
      """
      These tests validate that we can use a new client to produce and consume from older brokers.
      """
  
      def __init__(self, test_context):
          """:type test_context: ducktape.tests.test.TestContext"""
          super(ClientCompatibilityProduceConsumeTest, self).__init__(test_context=test_context)
  
          self.topic = "test_topic"
          self.zk = ZookeeperService(test_context, num_nodes=3)
          self.kafka = KafkaService(test_context, num_nodes=3, zk=self.zk, topics={self.topic:{
                                                                      "partitions": 10,
                                                                      "replication-factor": 2}})
          self.num_partitions = 10
          self.timeout_sec = 60
          self.producer_throughput = 1000
          self.num_producers = 2
          self.messages_per_producer = 1000
          self.num_consumers = 1
  
      def setUp(self):
          self.zk.start()
  
      def min_cluster_size(self):
          # Override this since we're adding services outside of the constructor
          return super(ClientCompatibilityProduceConsumeTest, self).min_cluster_size() + self.num_producers + self.num_consumers
  
      @parametrize(broker_version=str(DEV_BRANCH))
      @parametrize(broker_version=str(CDK_2_1_0))
      @parametrize(broker_version=str(CDK_2_1_1))
      @parametrize(broker_version=str(CDK_2_1_2))
      @parametrize(broker_version=str(CDK_2_2_0))
      @parametrize(broker_version=str(CDK_3_0_0))
      @parametrize(broker_version=str(CDK_3_1_0))
      @parametrize(broker_version=str(CDH_6_0_0))
      @parametrize(broker_version=str(LATEST_0_10_0))
      @parametrize(broker_version=str(LATEST_0_10_1))
      @parametrize(broker_version=str(LATEST_0_10_2))
      @parametrize(broker_version=str(LATEST_0_11_0))
      @parametrize(broker_version=str(LATEST_1_0))
      @parametrize(broker_version=str(LATEST_1_1))
      @parametrize(broker_version=str(LATEST_2_0))
      @parametrize(broker_version=str(LATEST_2_1))
      @parametrize(broker_version=str(LATEST_2_2))
      @parametrize(broker_version=str(LATEST_2_3))
      @parametrize(broker_version=str(LATEST_2_4))
      def test_produce_consume(self, broker_version):
          print("running producer_consumer_compat with broker_version = %s" % broker_version)
          self.kafka.set_version(KafkaVersion(broker_version))
          self.kafka.security_protocol = "PLAINTEXT"
          self.kafka.interbroker_security_protocol = self.kafka.security_protocol
          self.producer = VerifiableProducer(self.test_context, self.num_producers, self.kafka,
                                             self.topic, throughput=self.producer_throughput,
                                             message_validator=is_int_with_prefix)
          self.consumer = ConsoleConsumer(self.test_context, self.num_consumers, self.kafka, self.topic,
                                          consumer_timeout_ms=60000,
                                          message_validator=is_int_with_prefix)
          self.kafka.start()
  
          self.run_produce_consume_validate(lambda: wait_until(
              lambda: self.producer.each_produced_at_least(self.messages_per_producer) == True,
              timeout_sec=120, backoff_sec=1,
              err_msg="Producer did not produce all messages in reasonable amount of time"))
  
  