--- /dev/null
+package org.apache.lucene.util;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.lucene.store.IndexInput;
+import org.apache.lucene.store.IndexOutput;
+import org.apache.lucene.store.RAMDirectory;
+
+/**
+ * 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.
+ */
+public class TestByteBlockPool extends LuceneTestCase {
+
+ public void testCopyRefAndWrite() throws IOException {
+ List<String> list = new ArrayList<String>();
+ int maxLength = atLeast(500);
+ ByteBlockPool pool = new ByteBlockPool(new ByteBlockPool.DirectAllocator());
+ pool.nextBuffer();
+ final int numValues = atLeast(100);
+ BytesRef ref = new BytesRef();
+ for (int i = 0; i < numValues; i++) {
+ final String value = _TestUtil.randomRealisticUnicodeString(random,
+ maxLength);
+ list.add(value);
+ ref.copy(value);
+ pool.copy(ref);
+ }
+ RAMDirectory dir = new RAMDirectory();
+ IndexOutput stream = dir.createOutput("foo.txt");
+ pool.writePool(stream);
+ stream.flush();
+ stream.close();
+ IndexInput input = dir.openInput("foo.txt");
+ assertEquals(pool.byteOffset + pool.byteUpto, stream.length());
+ BytesRef expected = new BytesRef();
+ BytesRef actual = new BytesRef();
+ for (String string : list) {
+ expected.copy(string);
+ actual.grow(expected.length);
+ actual.length = expected.length;
+ input.readBytes(actual.bytes, 0, actual.length);
+ assertEquals(expected, actual);
+ }
+ try {
+ input.readByte();
+ fail("must be EOF");
+ } catch (IOException e) {
+ // expected - read past EOF
+ }
+ dir.close();
+ }
+}