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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.archivers.zip;
import static org.junit.Assert.*;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.zip.CRC32;
import java.util.zip.CheckedOutputStream;
import org.apache.commons.compress.utils.BoundedInputStream;
import org.apache.commons.compress.utils.IOUtils;
import org.junit.Test;
public class ExplodeSupportTest {
private void testArchiveWithImplodeCompression(final String filename, final String entryName) throws IOException {
final ZipFile zip = new ZipFile(new File(filename));
final ZipArchiveEntry entry = zip.getEntries().nextElement();
assertEquals("entry name", entryName, entry.getName());
assertTrue("entry can't be read", zip.canReadEntryData(entry));
assertEquals("method", ZipMethod.IMPLODING.getCode(), entry.getMethod());
final ByteArrayOutputStream bout = new ByteArrayOutputStream();
final CheckedOutputStream out = new CheckedOutputStream(bout, new CRC32());
IOUtils.copy(zip.getInputStream(entry), out);
out.flush();
assertEquals("CRC32", entry.getCrc(), out.getChecksum().getValue());
zip.close();
}
@Test
public void testArchiveWithImplodeCompression4K2Trees() throws IOException {
testArchiveWithImplodeCompression("target/test-classes/imploding-4Kdict-2trees.zip", "HEADER.TXT");
}
@Test
public void testArchiveWithImplodeCompression8K3Trees() throws IOException {
testArchiveWithImplodeCompression("target/test-classes/imploding-8Kdict-3trees.zip", "LICENSE.TXT");
}
@Test
public void testTikaTestArchive() throws IOException {
testArchiveWithImplodeCompression("target/test-classes/moby-imploded.zip", "README");
}
private void testZipStreamWithImplodeCompression(final String filename, final String entryName) throws IOException {
final ZipArchiveInputStream zin = new ZipArchiveInputStream(new FileInputStream(new File(filename)));
final ZipArchiveEntry entry = zin.getNextZipEntry();
assertEquals("entry name", entryName, entry.getName());
assertTrue("entry can't be read", zin.canReadEntryData(entry));
assertEquals("method", ZipMethod.IMPLODING.getCode(), entry.getMethod());
final InputStream bio = new BoundedInputStream(zin, entry.getSize());
final ByteArrayOutputStream bout = new ByteArrayOutputStream();
final CheckedOutputStream out = new CheckedOutputStream(bout, new CRC32());
IOUtils.copy(bio, out);
out.flush();
assertEquals("CRC32", entry.getCrc(), out.getChecksum().getValue());
}
@Test
public void testZipStreamWithImplodeCompression4K2Trees() throws IOException {
testZipStreamWithImplodeCompression("target/test-classes/imploding-4Kdict-2trees.zip", "HEADER.TXT");
}
@Test
public void testZipStreamWithImplodeCompression8K3Trees() throws IOException {
testZipStreamWithImplodeCompression("target/test-classes/imploding-8Kdict-3trees.zip", "LICENSE.TXT");
}
@Test
public void testTikaTestStream() throws IOException {
testZipStreamWithImplodeCompression("target/test-classes/moby-imploded.zip", "README");
}
@Test
public void testConstructorThrowsExceptions() {
try {
ExplodingInputStream eis = new ExplodingInputStream(4095,2,new ByteArrayInputStream(new byte[] {}));
fail("should have failed with illegal argument exception");
} catch (IllegalArgumentException e) {
}
try {
ExplodingInputStream eis = new ExplodingInputStream(4096,4,new ByteArrayInputStream(new byte[] {}));
fail("should have failed with illegal argument exception");
} catch (IllegalArgumentException e) {
}
}
}
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