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* 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.commons.compress.compressors;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import org.apache.commons.compress.AbstractTestCase;
import org.apache.commons.compress.compressors.bzip2.BZip2CompressorInputStream;
import org.apache.commons.compress.utils.IOUtils;
public final class BZip2TestCase extends AbstractTestCase {
public void testBzipCreation() throws Exception {
File output = null;
final File input = getFile("test.txt");
{
output = new File(dir, "test.txt.bz2");
final OutputStream out = new FileOutputStream(output);
final CompressorOutputStream cos = new CompressorStreamFactory().createCompressorOutputStream("bzip2", out);
FileInputStream in = new FileInputStream(input);
IOUtils.copy(in, cos);
cos.close();
in.close();
}
final File decompressed = new File(dir, "decompressed.txt");
{
final File toDecompress = output;
final InputStream is = new FileInputStream(toDecompress);
final CompressorInputStream in =
new CompressorStreamFactory().createCompressorInputStream("bzip2", is);
FileOutputStream os = new FileOutputStream(decompressed);
IOUtils.copy(in, os);
is.close();
os.close();
}
assertEquals(input.length(),decompressed.length());
}
public void testBzip2Unarchive() throws Exception {
final File input = getFile("bla.txt.bz2");
final File output = new File(dir, "bla.txt");
final InputStream is = new FileInputStream(input);
final CompressorInputStream in = new CompressorStreamFactory().createCompressorInputStream("bzip2", is);
FileOutputStream os = new FileOutputStream(output);
IOUtils.copy(in, os);
is.close();
os.close();
}
public void testConcatenatedStreamsReadFirstOnly() throws Exception {
final File input = getFile("multiple.bz2");
final InputStream is = new FileInputStream(input);
try {
final CompressorInputStream in = new CompressorStreamFactory()
.createCompressorInputStream("bzip2", is);
try {
assertEquals('a', in.read());
assertEquals(-1, in.read());
} finally {
in.close();
}
} finally {
is.close();
}
}
public void testConcatenatedStreamsReadFully() throws Exception {
final File input = getFile("multiple.bz2");
final InputStream is = new FileInputStream(input);
try {
final CompressorInputStream in =
new BZip2CompressorInputStream(is, true);
try {
assertEquals('a', in.read());
assertEquals('b', in.read());
assertEquals(0, in.available());
assertEquals(-1, in.read());
} finally {
in.close();
}
} finally {
is.close();
}
}
public void testCOMPRESS131() throws Exception {
final File input = getFile("COMPRESS-131.bz2");
final InputStream is = new FileInputStream(input);
try {
final CompressorInputStream in =
new BZip2CompressorInputStream(is, true);
try {
int l = 0;
while(in.read() != -1) {
l++;
}
assertEquals(539, l);
} finally {
in.close();
}
} finally {
is.close();
}
}
}