[jira] [Updated] (KAFKA-1856) Add PreCommit Patch Testing

["Joe Stein (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-1856?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joe Stein updated KAFKA-1856:
-----------------------------
       Resolution: Fixed
    Fix Version/s: 0.8.3
           Status: Resolved  (was: Patch Available)

This still requires the jenkins build to get updated with the job I created https://builds.apache.org/job/KafkaPreCommit/rename?newName=PreCommit-Kafka and I will ping INFRA about getting that connected.

Thanks!

> Add PreCommit Patch Testing
> ---------------------------
>
>                 Key: KAFKA-1856
>                 URL: https://issues.apache.org/jira/browse/KAFKA-1856
>             Project: Kafka
>          Issue Type: Task
>            Reporter: Ashish K Singh
>            Assignee: Ashish K Singh
>             Fix For: 0.8.3
>
>         Attachments: KAFKA-1845.result.txt, KAFKA-1856.patch, KAFKA-1856_2015-01-18_21:43:56.patch, KAFKA-1856_2015-02-04_14:57:05.patch, KAFKA-1856_2015-02-04_15:44:47.patch
>
>
> h1. Kafka PreCommit Patch Testing - *Don't wait for it to break*
> h2. Motivation
> *With great power comes great responsibility* - Uncle Ben. As Kafka user list is growing, mechanism to ensure quality of the product is required. Quality becomes hard to measure and maintain in an open source project, because of a wide community of contributors. Luckily, Kafka is not the first open source project and can benefit from learnings of prior projects.
> PreCommit tests are the tests that are run for each patch that gets attached to an open JIRA. Based on tests results, test execution framework, test bot, +1 or -1 the patch. Having PreCommit tests take the load off committers to look at or test each patch.
> h2. Tests in Kafka
> h3. Unit and Integraiton Tests
> [Unit and Integration tests|https://cwiki.apache.org/confluence/display/KAFKA/Kafka+0.9+Unit+and+Integration+Tests] are cardinal to help contributors to avoid breaking existing functionalities while adding new functionalities or fixing older ones. These tests, atleast the ones relevant to the changes, must be run by contributors before attaching a patch to a JIRA.
> h3. System Tests
> [System tests|https://cwiki.apache.org/confluence/display/KAFKA/Kafka+System+Tests] are much wider tests that, unlike unit tests, focus on end-to-end scenarios and not some specific method or class.
> h2. Apache PreCommit tests
> Apache provides a mechanism to automatically build a project and run a series of tests whenever a patch is uploaded to a JIRA. Based on test execution, the test framework will comment with a +1 or -1 on the JIRA.
> You can read more about the framework here:
> http://wiki.apache.org/general/PreCommitBuilds
> h2. Plan
> # Create a test-patch.py script (similar to the one used in Flume, Sqoop and other projects) that will take a jira as a parameter, apply on the appropriate branch, build the project, run tests and report results. This script should be committed into the Kafka code-base. To begin with, this will only run unit tests. We can add code sanity checks, system_tests, etc in the future.
> # Create a jenkins job for running the test (as described in http://wiki.apache.org/general/PreCommitBuilds) and validate that it works manually. This must be done by a committer with Jenkins access.
> # Ask someone with access to https://builds.apache.org/job/PreCommit-Admin/ to add Kafka to the list of projects PreCommit-Admin triggers.



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