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https://issues.apache.org/jira/browse/SOLR-8758?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alan Woodward updated SOLR-8758:
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Attachment: SOLR-8758.patch
Here's a patch. The base class uses a MiniSolrCloudCluster, and exposes a
Builder interface to configure it. You can give it a solr.xml (either as a
Path or a String), and add configs that will be uploaded when the cluster
starts.
I initially wanted to implement this as a junit ExternalResource that could be
added as a ClassRule, but unfortunately this puts it outside the
BeforeClass/AfterClass boundaries of LuceneTestCase and it falls foul of things
like the ThreadLeak tracker.
> Add SolrCloudTestCase base class
> --------------------------------
>
> Key: SOLR-8758
> URL: https://issues.apache.org/jira/browse/SOLR-8758
> Project: Solr
> Issue Type: Improvement
> Reporter: Alan Woodward
> Attachments: SOLR-8758.patch
>
>
> At the moment, if you want to write unit tests for Cloud components, you have
> to extend AbstractDistribZkTestCase, which has a number of disadvantages:
> * the API isn't well-documented
> * you get a default configuration loaded into ZK, and it's not trivial to add
> separate ones
> * you get a default collection, whether you want one or not
> * the test cluster isn't static, which means that it's started up and
> shutdown after every test function. To avoid tests being incredibly slow, we
> end up writing single-function tests that call out to sub-functions, losing
> the benefits of execution-order randomization.
> It would be more useful to have a properly configurable and documented
> testcase base class.
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