[LUCENE-10598] SortedSetDocValues#docValueCount() should be always greater than zero

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 9.3
• Lucene Fields: New
• Assignee: Unassigned
• Reporter: Lu Xugang
• Created: 30/May/22 15:40
• Updated: 28/Aug/22 16:41
• Resolved: 19/Jul/22 21:40

Description

This test runs failed.

  public void testDocValueCount() throws IOException {
      try (Directory d = newDirectory()) {
        try (IndexWriter w = new IndexWriter(d, new IndexWriterConfig())) {
          for (int j = 0; j < 1; j++) {
            Document doc = new Document();
            doc.add(new SortedSetDocValuesField("field", new BytesRef("a")));
            doc.add(new SortedSetDocValuesField("field", new BytesRef("a")));
            doc.add(new SortedSetDocValuesField("field", new BytesRef("b")));
            w.addDocument(doc);
          }
        }
        try (IndexReader reader = DirectoryReader.open(d)) {
          assertEquals(1, reader.leaves().size());
          for (LeafReaderContext leaf : reader.leaves()) {
            SortedSetDocValues docValues= leaf.reader().getSortedSetDocValues("field") ;
            for (int doc1 = docValues.nextDoc(); doc1 != DocIdSetIterator.NO_MORE_DOCS; doc1 = docValues.nextDoc()) {
              assert docValues.docValueCount() > 0;
            }
          }
        }
    }
  }

Issue Links

• links to: GitHub Pull Request #934
• links to: GitHub Pull Request #942
• links to: GitHub Pull Request #957