+package org.apache.lucene.search;
+
+/**
+ * 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.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+
+import org.apache.lucene.util._TestUtil;
+
+/**
+ * Unit tests for the ParallelMultiSearcher
+ */
+public class TestParallelMultiSearcher extends TestMultiSearcher {
+ List<ExecutorService> pools = new ArrayList<ExecutorService>();
+
+ @Override
+ public void tearDown() throws Exception {
+ for (ExecutorService exec : pools)
+ exec.awaitTermination(1000, TimeUnit.MILLISECONDS);
+ pools.clear();
+ super.tearDown();
+ }
+
+ @Override
+ protected MultiSearcher getMultiSearcherInstance(Searcher[] searchers)
+ throws IOException {
+ ExecutorService exec = Executors.newFixedThreadPool(_TestUtil.nextInt(random, 2, 8));
+ pools.add(exec);
+ return new ParallelMultiSearcher(exec, searchers);
+ }
+
+}