[jira] [Created] (KAFKA-3538) Abstract the creation/retrieval of Producer for stream sinks for unit testing

["Michael Coon (JIRA)" <ji...@apache.org>]

Michael Coon created KAFKA-3538:
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             Summary: Abstract the creation/retrieval of Producer for stream sinks for unit testing
                 Key: KAFKA-3538
                 URL: https://issues.apache.org/jira/browse/KAFKA-3538
             Project: Kafka
          Issue Type: New Feature
          Components: streams
    Affects Versions: 0.10.1.0
            Reporter: Michael Coon
            Assignee: Guozhang Wang
            Priority: Minor


The StreamThread creates producer/consumers directly as KafkaProducer and KafkaConsumer, thus eliminating my ability to unit test my streams code without having an active Kafka nearby. Could this be abstracted in a way that it relies on an optional ProducerProvider or ConsumerProvider implementation that could inject a mock producer/consumer for unit testing? We do this in all our kafka code for unit testing and if a provider is not offered at runtime, we create the concrete KafkaProdocer/Consumer components by default.



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