GitHub user mfenniak opened a pull request:
https://github.com/apache/kafka/pull/1782
MINOR: Fix ProcessorTopologyTestDriver to support multiple source topics
There's a minor bug in ProcessorTopologyTestDriver that prevents it from
working with a topology that contains multiple sources. The bug is that
```consumer.assign()``` is called while looping through all the source topics,
but, consumer.assign resets the state of the MockConsumer to only consume from
the topics passed in. This patch fixes the issue by calling consumer.assign
once with all the TopicPartition instances. Unit test
(testDrivingSimpleMultiSourceTopology) included.
This contribution is my original work and I license the work to the project
under the project's open source license.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/mfenniak/kafka
ProcessorTopologyTestDriver-multiple-source-bugfix
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/kafka/pull/1782.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1782
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