lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Julie Tibshirani (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENE-8287) ContextQuery with empty RegexCompletionQuery produces an assertion failure
Date Tue, 01 May 2018 21:12:00 GMT
Julie Tibshirani created LUCENE-8287:
----------------------------------------

             Summary: ContextQuery with empty RegexCompletionQuery produces an assertion failure
                 Key: LUCENE-8287
                 URL: https://issues.apache.org/jira/browse/LUCENE-8287
             Project: Lucene - Core
          Issue Type: Bug
            Reporter: Julie Tibshirani


When an empty RegexCompletionQuery is provided to ContextQuery, the following assertion failure
occurs:
{code:java}
java.lang.AssertionError: input should not end with the context separator
at org.apache.lucene.search.suggest.document.ContextQuery$ContextCompletionWeight.setInnerWeight(ContextQuery.java:296)
at org.apache.lucene.search.suggest.document.ContextQuery$ContextCompletionWeight.setNextMatch(ContextQuery.java:275)
at org.apache.lucene.search.suggest.document.NRTSuggester.lookup(NRTSuggester.java:221)
at org.apache.lucene.search.suggest.document.CompletionScorer.score(CompletionScorer.java:70)
at org.apache.lucene.search.BulkScorer.score(BulkScorer.java:39)
at org.apache.lucene.search.suggest.document.SuggestIndexSearcher.suggest(SuggestIndexSearcher.java:78)
at org.apache.lucene.search.suggest.document.SuggestIndexSearcher.suggest(SuggestIndexSearcher.java:58)
at org.apache.lucene.search.suggest.document.TestContextQuery.testEmptyRegexQuery(TestContextQuery.java:193)
{code}
This is a bit of an edge case, but may be concerning as without assertions enabled, you can
go on to access IntsRef indices that are out of bounds.

The attached patch provides a reproduction of the issue, as the test case TestContextQuery#testEmptyRegexQuery.
Note that to reproduce, Java assertions must be enabled (as in the default configuration for
tests).

The patch also provides a test case for the normal behavior of an empty RegexCompletionQuery,
when it is not wrapped in ContextQuery (TestRegexCompletionQuery#testEmptyRegexQuery). In
this case, there is no error, and all suggestions are returned. 



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org


Mime
View raw message