/*
* 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.
*/
package org.apache.jackrabbit.core.query.lucene.directory;
import java.io.IOException;
import java.io.BufferedInputStream;
import java.io.InputStream;
import java.util.Random;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.RAMDirectory;
import org.apache.lucene.store.IndexOutput;
import junit.framework.TestCase;
/**
* <code>IndexInputStreamTest</code> performs tests on {@link IndexInputStream}.
*/
public class IndexInputStreamTest extends TestCase {
public void testIndexInputStream() throws IOException {
checkStream(0, 0);
checkStream(0, 128);
checkStream(128, 0);
checkStream(128, 128);
checkStream(127, 128);
checkStream(129, 128);
checkStream(300, 128);
}
private void checkStream(int size, int buffer) throws IOException {
Random rand = new Random();
byte[] data = new byte[size];
rand.nextBytes(data);
Directory dir = new RAMDirectory();
IndexOutput out = dir.createOutput("test");
out.writeBytes(data, data.length);
out.close();
InputStream in = new IndexInputStream(dir.openInput("test"));
if (buffer != 0) {
in = new BufferedInputStream(in, buffer);
}
byte[] buf = new byte[3];
int len;
int pos = 0;
while ((len = in.read(buf)) > -1) {
for (int i = 0; i < len; i++, pos++) {
assertEquals(data[pos], buf[i]);
}
}
in.close();
// assert length
assertEquals(data.length, pos);
}
}