Tests: TestLongNormValueSource, AssertingScorable (apache#14448)

TestLongNormValueSource: improve
AssortingScorable: don't wrap needlessly

Author: dsmiley

lucene/queries/src/test/org/apache/lucene/queries/function/TestLongNormValueSource.java

@@ -16,99 +16,68 @@
  */
 package org.apache.lucene.queries.function;
 
-import org.apache.lucene.analysis.Analyzer;
 import org.apache.lucene.document.Document;
-import org.apache.lucene.document.Field;
+import org.apache.lucene.document.Field.Store;
+import org.apache.lucene.document.StringField;
 import org.apache.lucene.document.TextField;
-import org.apache.lucene.index.IndexReader;
 import org.apache.lucene.index.IndexWriterConfig;
 import org.apache.lucene.queries.function.valuesource.NormValueSource;
 import org.apache.lucene.search.IndexSearcher;
 import org.apache.lucene.search.Query;
 import org.apache.lucene.search.ScoreDoc;
 import org.apache.lucene.search.Sort;
-import org.apache.lucene.search.SortField;
 import org.apache.lucene.search.TopDocs;
 import org.apache.lucene.search.similarities.ClassicSimilarity;
 import org.apache.lucene.search.similarities.Similarity;
-import org.apache.lucene.store.Directory;
 import org.apache.lucene.tests.analysis.MockAnalyzer;
 import org.apache.lucene.tests.index.RandomIndexWriter;
 import org.apache.lucene.tests.search.CheckHits;
 import org.apache.lucene.tests.util.LuceneTestCase;
-import org.junit.AfterClass;
-import org.junit.BeforeClass;
 
 public class TestLongNormValueSource extends LuceneTestCase {
 
-  static Directory dir;
-  static IndexReader reader;
-  static IndexSearcher searcher;
-  static Analyzer analyzer;
-
-  private static final Similarity sim = new ClassicSimilarity();
-
-  @BeforeClass
-  public static void beforeClass() throws Exception {
-    dir = newDirectory();
-    analyzer = new MockAnalyzer(random());
+  public void testNorm() throws Exception {
+    Similarity sim = new ClassicSimilarity();
+    final var field = "text";
+    var analyzer = new MockAnalyzer(random());
+    var dir = newDirectory();
     IndexWriterConfig iwConfig = newIndexWriterConfig(analyzer);
     iwConfig.setMergePolicy(newLogMergePolicy());
     iwConfig.setSimilarity(sim);
-    RandomIndexWriter iw = new RandomIndexWriter(random(), dir, iwConfig);
 
-    Document doc = new Document();
-    doc.add(new TextField("text", "this is a test test test", Field.Store.NO));
-    iw.addDocument(doc);
+    try (RandomIndexWriter iw = new RandomIndexWriter(random(), dir, iwConfig)) {
 
-    doc = new Document();
-    doc.add(new TextField("text", "second test", Field.Store.NO));
-    iw.addDocument(doc);
+      // the leading number is the number of terms / positions for that value
+      final var store = Store.YES;
+      Document doc = new Document();
+      doc.add(new StringField("id", "6", store));
+      doc.add(new TextField(field, "this is a test test test", store));
+      iw.addDocument(doc);
 
-    reader = iw.getReader();
-    searcher = newSearcher(reader);
-    iw.close();
-  }
+      doc = new Document();
+      doc.add(new StringField("id", "2", store));
+      doc.add(new TextField(field, "second test", store));
+      iw.addDocument(doc);
 
-  @AfterClass
-  public static void afterClass() throws Exception {
-    searcher = null;
-    reader.close();
-    reader = null;
-    dir.close();
-    dir = null;
-    analyzer.close();
-    analyzer = null;
-  }
+      IndexSearcher searcher;
+      try (var reader = iw.getReader()) {
+        searcher = newSearcher(reader);
+        searcher.setSimilarity(sim);
 
-  public void testNorm() throws Exception {
-    Similarity saved = searcher.getSimilarity();
-    try {
-      // no norm field (so agnostic to indexed similarity)
-      searcher.setSimilarity(sim);
-      assertHits(new FunctionQuery(new NormValueSource("text")), new float[] {0f, 0f});
+        Query q = new FunctionQuery(new NormValueSource(field));
+        TopDocs docs = searcher.search(q, searcher.getIndexReader().numDocs(), new Sort(), true);
+        final var expectedDocIds = new int[] {1, 0};
+        final var expectedScoreDocs =
+            new ScoreDoc[] {new ScoreDoc(1, 0.70710677f), new ScoreDoc(0, 0.4082483f)};
+        CheckHits.checkHitsQuery(q, expectedScoreDocs, docs.scoreDocs, expectedDocIds);
+        CheckHits.checkExplanations(q, "", searcher);
+        final var storedFields = searcher.getIndexReader().storedFields();
+        assertEquals("2", storedFields.document(expectedDocIds[0]).get("id"));
+        assertEquals("6", storedFields.document(expectedDocIds[1]).get("id"));
+      }
     } finally {
-      searcher.setSimilarity(saved);
+      dir.close();
+      analyzer.close();
     }
   }
-
-  void assertHits(Query q, float[] scores) throws Exception {
-    ScoreDoc[] expected = new ScoreDoc[scores.length];
-    int[] expectedDocs = new int[scores.length];
-    for (int i = 0; i < expected.length; i++) {
-      expectedDocs[i] = i;
-      expected[i] = new ScoreDoc(i, scores[i]);
-    }
-    TopDocs docs = searcher.search(q, 2, new Sort(new SortField("id", SortField.Type.STRING)));
-
-    /*
-    for (int i=0;i<docs.scoreDocs.length;i++) {
-      System.out.println(searcher.explain(q, docs.scoreDocs[i].doc));
-    }
-    */
-
-    CheckHits.checkHits(random(), q, "", searcher, expectedDocs);
-    CheckHits.checkHitsQuery(q, expected, docs.scoreDocs, expectedDocs);
-    CheckHits.checkExplanations(q, "", searcher);
-  }
 }