jpountz commented on code in PR #13987:
URL: https://github.com/apache/lucene/pull/13987#discussion_r1840904596
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lucene/core/src/test/org/apache/lucene/search/TestScoreCachingWrappingScorer.java:
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@@ -157,4 +157,40 @@ public void testGetScores() throws Exception {
ir.close();
directory.close();
}
+
+ private static class CountingScorable extends FilterScorable {
+ int count = 0;
+
+ public CountingScorable(Scorable in) {
+ super(in);
+ }
+
+ @Override
+ public float score() throws IOException {
+ count++;
+ return in.score();
+ }
+ }
+
+ public void testRepeatedCollectReusesScore() throws Exception {
+ Scorer s = new SimpleScorer();
+ CountingScorable countingScorable = new CountingScorable(s);
+ ScoreCachingCollector scc = new ScoreCachingCollector(scores.length * 2);
+ LeafCollector lc = scc.getLeafCollector(null);
+ lc.setScorer(countingScorable);
+
+ // We need to iterate on the scorer so that its doc() advances.
+ int doc;
+ while ((doc = s.iterator().nextDoc()) != DocIdSetIterator.NO_MORE_DOCS) {
+ lc.collect(doc);
+ lc.collect(doc);
Review Comment:
It's illegal to call collect() multiple times on the same doc, this
shouldn't be necessary as `collect()` already calls `Scorable#score()` multiple
times?
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