gsmiller commented on a change in pull request #226:
URL: https://github.com/apache/lucene/pull/226#discussion_r677530466
##########
File path:
lucene/core/src/test/org/apache/lucene/search/TestScoreCachingWrappingScorer.java
##########
@@ -156,4 +156,28 @@ public void testGetScores() throws Exception {
ir.close();
directory.close();
}
+
+ public void testNoUnnecessaryWrap() throws Exception {
+ Scorable base =
+ new Scorable() {
+ @Override
+ public float score() throws IOException {
+ return -1;
+ }
+
+ @Override
+ public int docID() {
+ return -1;
+ }
+ };
+
+ // Wrapping the first time should produce a different instance:
+ Scorable wrapped = ScoreCachingWrappingScorer.wrap(base);
+ assertNotEquals(base, wrapped);
+
+ // But if we try to wrap an instance of ScoreCachingWrappingScorer, it
shouldn't unnecessarily
+ // wrap again:
+ Scorable doubleWrapped = ScoreCachingWrappingScorer.wrap(wrapped);
+ assertEquals(wrapped, doubleWrapped);
Review comment:
Ooop, yep. Changed.
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