svn commit: r1523393 - /lucene/dev/branches/lucene5207/lucene/expressions/src/test/org/apache/lucene/expressions/TestExpressionSorts.java

[rm...@apache.org]

Author: rmuir
Date: Sun Sep 15 03:36:48 2013
New Revision: 1523393

URL: http://svn.apache.org/r1523393
Log:
LUCENE-5207: add test

Added:
    lucene/dev/branches/lucene5207/lucene/expressions/src/test/org/apache/lucene/expressions/TestExpressionSorts.java   (with props)

Added: lucene/dev/branches/lucene5207/lucene/expressions/src/test/org/apache/lucene/expressions/TestExpressionSorts.java
URL: http://svn.apache.org/viewvc/lucene/dev/branches/lucene5207/lucene/expressions/src/test/org/apache/lucene/expressions/TestExpressionSorts.java?rev=1523393&view=auto
==============================================================================
--- lucene/dev/branches/lucene5207/lucene/expressions/src/test/org/apache/lucene/expressions/TestExpressionSorts.java (added)
+++ lucene/dev/branches/lucene5207/lucene/expressions/src/test/org/apache/lucene/expressions/TestExpressionSorts.java Sun Sep 15 03:36:48 2013
@@ -0,0 +1,165 @@
+package org.apache.lucene.expressions;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.util.Arrays;
+import java.util.Collections;
+
+import org.apache.lucene.document.Document;
+import org.apache.lucene.document.DoubleField;
+import org.apache.lucene.document.Field;
+import org.apache.lucene.document.FloatDocValuesField;
+import org.apache.lucene.document.FloatField;
+import org.apache.lucene.document.IntField;
+import org.apache.lucene.document.LongField;
+import org.apache.lucene.document.NumericDocValuesField;
+import org.apache.lucene.expressions.js.JavascriptCompiler;
+import org.apache.lucene.index.IndexReader;
+import org.apache.lucene.index.RandomIndexWriter;
+import org.apache.lucene.index.Term;
+import org.apache.lucene.search.BooleanClause;
+import org.apache.lucene.search.BooleanQuery;
+import org.apache.lucene.search.CheckHits;
+import org.apache.lucene.search.Filter;
+import org.apache.lucene.search.IndexSearcher;
+import org.apache.lucene.search.MatchAllDocsQuery;
+import org.apache.lucene.search.Query;
+import org.apache.lucene.search.QueryWrapperFilter;
+import org.apache.lucene.search.Sort;
+import org.apache.lucene.search.SortField;
+import org.apache.lucene.search.TermQuery;
+import org.apache.lucene.search.TopDocs;
+import org.apache.lucene.store.Directory;
+import org.apache.lucene.util.English;
+import org.apache.lucene.util.LuceneTestCase;
+import org.apache.lucene.util._TestUtil;
+
+/**
+ * Tests some basic expressions against different queries,
+ * and fieldcache/docvalues fields against an equivalent sort.
+ */
+public class TestExpressionSorts extends LuceneTestCase {
+  private Directory dir;
+  private IndexReader reader;
+  private IndexSearcher searcher;
+
+  @Override
+  public void setUp() throws Exception {
+    super.setUp();
+    dir = newDirectory();
+    RandomIndexWriter iw = new RandomIndexWriter(random(), dir);
+    int numDocs = _TestUtil.nextInt(random(), 2049, 4000);
+    for (int i = 0; i < numDocs; i++) {
+      Document document = new Document();
+      document.add(newTextField("english", English.intToEnglish(i), Field.Store.NO));
+      document.add(newTextField("oddeven", (i % 2 == 0) ? "even" : "odd", Field.Store.NO));
+      document.add(newStringField("byte", "" + ((byte) random().nextInt()), Field.Store.NO));
+      document.add(newStringField("short", "" + ((short) random().nextInt()), Field.Store.NO));
+      document.add(new IntField("int", random().nextInt(), Field.Store.NO));
+      document.add(new LongField("long", random().nextLong(), Field.Store.NO));
+
+      document.add(new FloatField("float", random().nextFloat(), Field.Store.NO));
+      document.add(new DoubleField("double", random().nextDouble(), Field.Store.NO));
+
+      document.add(new NumericDocValuesField("intdocvalues", random().nextInt()));
+      document.add(new FloatDocValuesField("floatdocvalues", random().nextFloat()));
+      iw.addDocument(document);
+    }
+    reader = iw.getReader();
+    iw.close();
+    searcher = newSearcher(reader);
+  }
+
+  @Override
+  public void tearDown() throws Exception {
+    reader.close();
+    dir.close();
+    super.tearDown();
+  }
+  
+  public void testQueries() throws Exception {
+    int n = atLeast(4);
+    for (int i = 0; i < n; i++) {
+      Filter odd = new QueryWrapperFilter(new TermQuery(new Term("oddeven", "odd")));
+      assertQuery(new MatchAllDocsQuery(), null);
+      assertQuery(new TermQuery(new Term("english", "one")), null);
+      assertQuery(new MatchAllDocsQuery(), odd);
+      assertQuery(new TermQuery(new Term("english", "four")), odd);
+      BooleanQuery bq = new BooleanQuery();
+      bq.add(new TermQuery(new Term("english", "one")), BooleanClause.Occur.SHOULD);
+      bq.add(new TermQuery(new Term("oddeven", "even")), BooleanClause.Occur.SHOULD);
+      assertQuery(bq, null);
+      // force out of order
+      bq.add(new TermQuery(new Term("english", "two")), BooleanClause.Occur.SHOULD);
+      bq.setMinimumNumberShouldMatch(2);
+      assertQuery(bq, null);
+    }
+  }
+  
+  void assertQuery(Query query, Filter filter) throws Exception {
+    for (int i = 0; i < 10; i++) {
+      boolean reversed = random().nextBoolean();
+      SortField fields[] = new SortField[] {
+          new SortField("int", SortField.Type.INT, reversed),
+          new SortField("long", SortField.Type.LONG, reversed),
+          new SortField("float", SortField.Type.FLOAT, reversed),
+          new SortField("double", SortField.Type.DOUBLE, reversed),
+          new SortField("intdocvalues", SortField.Type.INT, reversed),
+          new SortField("floatdocvalues", SortField.Type.FLOAT, reversed),
+          new SortField("score", SortField.Type.SCORE)
+      };
+      Collections.shuffle(Arrays.asList(fields), random());
+      int numSorts = _TestUtil.nextInt(random(), 1, fields.length);
+      assertQuery(query, filter, new Sort(Arrays.copyOfRange(fields, 0, numSorts)));
+    }
+  }
+
+  void assertQuery(Query query, Filter filter, Sort sort) throws Exception {
+    int size = _TestUtil.nextInt(random(), 1, searcher.getIndexReader().maxDoc()/5);
+    TopDocs expected = searcher.search(query, filter, size, sort, random().nextBoolean(), random().nextBoolean());
+    
+    // make our actual sort, mutating original by replacing some of the 
+    // sortfields with equivalent expressions
+    
+    SortField original[] = sort.getSort();
+    SortField mutated[] = new SortField[original.length];
+    for (int i = 0; i < mutated.length; i++) {
+      if (random().nextInt(3) > 0) {
+        SortField s = original[i];
+        Expression expr = JavascriptCompiler.compile(s.getField());
+        SimpleBindings simpleBindings = new SimpleBindings();
+        simpleBindings.add(s);
+        boolean reverse = s.getType() == SortField.Type.SCORE || s.getReverse();
+        mutated[i] = expr.getSortField(simpleBindings, reverse);
+      } else {
+        mutated[i] = original[i];
+      }
+    }
+    
+    Sort mutatedSort = new Sort(mutated);
+    TopDocs actual = searcher.search(query, filter, size, mutatedSort, random().nextBoolean(), random().nextBoolean());
+    CheckHits.checkEqual(query, expected.scoreDocs, actual.scoreDocs);
+    
+    if (size < actual.totalHits) {
+      expected = searcher.searchAfter(expected.scoreDocs[size-1], query, filter, size, sort);
+      actual = searcher.searchAfter(actual.scoreDocs[size-1], query, filter, size, mutatedSort);
+      CheckHits.checkEqual(query, expected.scoreDocs, actual.scoreDocs);
+    }
+  }
+}
+