package org.apache.lucene.util;
import java.io.EOFException;
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.copyChars(value);
pool.copy(ref);
}
RAMDirectory dir = new RAMDirectory();
IndexOutput stream = dir.createOutput("foo.txt", newIOContext(random()));
pool.writePool(stream);
stream.flush();
stream.close();
IndexInput input = dir.openInput("foo.txt", newIOContext(random()));
assertEquals(pool.byteOffset + pool.byteUpto, stream.length());
BytesRef expected = new BytesRef();
BytesRef actual = new BytesRef();
for (String string : list) {
expected.copyChars(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 (EOFException e) {
// expected - read past EOF
}
dir.close();
}
}