Greg Miller created LUCENE-9991:
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Summary: Fix TestStringValueFacetCounts
Key: LUCENE-9991
URL: https://issues.apache.org/jira/browse/LUCENE-9991
Project: Lucene - Core
Issue Type: Bug
Components: modules/facet
Affects Versions: main (9.0)
Reporter: Greg Miller
As
[reported|https://issues.apache.org/jira/browse/LUCENE-9950?focusedCommentId=17357589&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-17357589]
by [~julietibs] in LUCNEE-9950, there's a randomized test failure in
{{TestStringValueFacetCounts}}. It's actually an issue with the test itself.
Since count ties are broken in {{StringValueFacetCounts}} by ordinal, but the
test doesn't know anything about the ordinals, the test breaks ties by the
value itself before comparing results. The edge-case is if we only request a
topN of 1, but the top result ties in count with other results. In this
scenario, the result returned by the {{Facets}} might be one that sorts higher
than another when secondarily sorted by value, but the test can't solve for
this since it only sees the one result. Should be a fairly simple fix in the
test case itself. Will do so shortly.
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