From 6dd9dbf2758c1fad2f10f0eba96998411aa43fd0 Mon Sep 17 00:00:00 2001
From: Alan Woodward <romseygeek@apache.org>
Date: Tue, 2 Jan 2018 11:06:45 +0000
Subject: [PATCH] LUCENE-8010: GroupingSearchTest assumes longer fields = lower
 scores

---
 .../org/apache/lucene/search/grouping/GroupingSearchTest.java   | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lucene/grouping/src/test/org/apache/lucene/search/grouping/GroupingSearchTest.java b/lucene/grouping/src/test/org/apache/lucene/search/grouping/GroupingSearchTest.java
index d13bfd73e4b..d09513ca128 100644
--- a/lucene/grouping/src/test/org/apache/lucene/search/grouping/GroupingSearchTest.java
+++ b/lucene/grouping/src/test/org/apache/lucene/search/grouping/GroupingSearchTest.java
@@ -31,6 +31,7 @@ import org.apache.lucene.search.IndexSearcher;
 import org.apache.lucene.search.Query;
 import org.apache.lucene.search.Sort;
 import org.apache.lucene.search.TermQuery;
+import org.apache.lucene.search.similarities.BM25Similarity;
 import org.apache.lucene.store.Directory;
 import org.apache.lucene.util.BytesRef;
 import org.apache.lucene.util.LuceneTestCase;
@@ -115,6 +116,7 @@ public class GroupingSearchTest extends LuceneTestCase {
     w.addDocument(doc);
 
     IndexSearcher indexSearcher = newSearcher(w.getReader());
+    indexSearcher.setSimilarity(new BM25Similarity());
     w.close();
 
     Sort groupSort = Sort.RELEVANCE;