[SOLR-8758] Add SolrCloudTestCase base class

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 5.5.1, 6.0
• Assignee: Unassigned
• Reporter: Alan Woodward
• Created: 29/Feb/16 11:41
• Updated: 21/Apr/16 22:30
• Resolved: 21/Apr/16 22:30

Description

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.

Issue Links

• is related to: SOLR-8959 TestMiniSolrCloudCluster.testSegmentTerminateEarly should be refactored into it's own SolrCloudTestCase subclass