Speed up some slow tests by reducing iteration counts (addresses #15212) (#15214)

Author: msokolov

lucene/core/src/test/org/apache/lucene/search/TestFullPrecisionFloatVectorSimilarityValuesSource.java

@@ -46,8 +46,8 @@ public class TestFullPrecisionFloatVectorSimilarityValuesSource extends LuceneTe
   private Codec savedCodec;
 
   private static final String KNN_FIELD = "knnField";
-  private static final int NUM_VECTORS = 1000;
-  private static final int VECTOR_DIMENSION = 128;
+  private static final int NUM_VECTORS = 100;
+  private static final int VECTOR_DIMENSION = 8;
 
   KnnVectorsFormat format;
   Float confidenceInterval;

lucene/core/src/test/org/apache/lucene/search/TestLateInteractionFloatValuesSource.java

@@ -66,7 +66,7 @@ public void testValidations() {
 
   public void testValues() throws IOException {
     List<float[][]> corpus = new ArrayList<>();
-    final int numDocs = atLeast(1000);
+    final int numDocs = atLeast(100);
     final int numSegments = random().nextInt(2, 5);
     final VectorSimilarityFunction vectorSimilarityFunction =
         VectorSimilarityFunction.values()[
@@ -96,7 +96,7 @@ public void testValues() throws IOException {
           }
         }
         // add a segment with no vectors
-        for (int i = 0; i < 100; i++) {
+        for (int i = 0; i < 10; i++) {
           Document doc = new Document();
           doc.add(new IntField("has_li_vector", 0, Field.Store.YES));
           w.addDocument(doc);

lucene/core/src/test/org/apache/lucene/search/TestLateInteractionRescorer.java

@@ -130,7 +130,7 @@ public void testMissingLateIValues() throws Exception {
   }
 
   private void indexMultiVectors(Directory dir, List<float[][]> corpus) throws IOException {
-    final int numDocs = atLeast(1000);
+    final int numDocs = atLeast(100);
     final int numSegments = random().nextInt(2, 5);
     int id = 0;
     try (IndexWriter w = new IndexWriter(dir, newIndexWriterConfig())) {

lucene/core/src/test/org/apache/lucene/search/TestRescoreTopNQuery.java

@@ -167,9 +167,9 @@ public void testLateInteractionQuery() throws Exception {
     final String LATE_I_FIELD = "li_vector";
     final String KNN_FIELD = "knn_vector";
     List<float[][]> corpus = new ArrayList<>();
-    final int numDocs = atLeast(1000);
-    final int numSegments = random().nextInt(2, 10);
-    final int dim = 128;
+    final int numDocs = atLeast(100);
+    final int numSegments = random().nextInt(2, 5);
+    final int dim = 8;
     final VectorSimilarityFunction vectorSimilarityFunction =
         VectorSimilarityFunction.values()[
             random().nextInt(VectorSimilarityFunction.values().length)];