fixed testMeta

Author: tteofili

docs/reference/elasticsearch/mapping-reference/dense-vector.md

@@ -281,6 +281,9 @@ $$$dense-vector-index-options$$$
     :   In case a knn query specifies a `rescore_vector` parameter, the query `rescore_vector` parameter will be used instead.
     :   See [oversampling and rescoring quantized vectors](docs-content://solutions/search/vector/knn.md#dense-vector-knn-search-rescoring) for details.
 :::::
+
+`early_termination`
+:   (Optional, boolean) Apply _patience_ based early termination strategy to knn queries over HNSW graphs (see [paper](https://cs.uwaterloo.ca/~jimmylin/publications/Teofili_Lin_ECIR2025.pdf)). This is expected to produce Only applicable to `hnsw`, `int8_hnsw`, `int4_hnsw` and `bbq_hnsw` index types.
 ::::
 
 

server/src/test/java/org/elasticsearch/index/mapper/vectors/DenseVectorFieldMapperTests.java

@@ -125,12 +125,18 @@ private void indexMapping(XContentBuilder b, IndexVersion indexVersion) throws I
                 b.startObject("rescore_vector");
                 b.field("oversample", DEFAULT_OVERSAMPLE);
                 b.endObject();
+                if (indexVersion.onOrAfter(DenseVectorFieldMapper.EXPOSE_EARLY_TERMINATION)) {
+                    b.field("early_termination", false);
+                }
                 b.endObject();
             } else {
                 b.startObject("index_options");
                 b.field("type", "int8_hnsw");
                 b.field("m", 16);
                 b.field("ef_construction", 100);
+                if (indexVersion.onOrAfter(DenseVectorFieldMapper.EXPOSE_EARLY_TERMINATION)) {
+                    b.field("early_termination", false);
+                }
                 b.endObject();
             }
         }