| /* |
| * 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 static org.junit.Assert.*; |
| |
| import java.io.BufferedInputStream; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.apache.commons.compress.AbstractTestCase; |
| import org.apache.commons.compress.compressors.z.ZCompressorInputStream; |
| import org.apache.commons.compress.utils.IOUtils; |
| import org.junit.Test; |
| |
| public final class ZTestCase extends AbstractTestCase { |
| |
| @Test |
| public void testZUnarchive() throws Exception { |
| testUnarchive(new StreamWrapper<CompressorInputStream>() { |
| @Override |
| public CompressorInputStream wrap(final InputStream is) throws IOException { |
| return new ZCompressorInputStream(is); |
| } |
| }); |
| } |
| |
| @Test |
| public void testZUnarchiveViaFactory() throws Exception { |
| testUnarchive(new StreamWrapper<CompressorInputStream>() { |
| @Override |
| public CompressorInputStream wrap(final InputStream is) throws Exception { |
| return new CompressorStreamFactory() |
| .createCompressorInputStream(CompressorStreamFactory.Z, is); |
| } |
| }); |
| } |
| |
| @Test |
| public void testZUnarchiveViaAutoDetection() throws Exception { |
| testUnarchive(new StreamWrapper<CompressorInputStream>() { |
| @Override |
| public CompressorInputStream wrap(final InputStream is) throws Exception { |
| return new CompressorStreamFactory() |
| .createCompressorInputStream(new BufferedInputStream(is)); |
| } |
| }); |
| } |
| |
| @Test |
| public void testMatches() throws Exception { |
| assertFalse(ZCompressorInputStream.matches(new byte[] { 1, 2, 3, 4 }, 4)); |
| assertFalse(ZCompressorInputStream.matches(new byte[] { 0x1f, 2, 3, 4 }, 4)); |
| assertFalse(ZCompressorInputStream.matches(new byte[] { 1, (byte)0x9d, 3, 4 }, |
| 4)); |
| assertFalse(ZCompressorInputStream.matches(new byte[] { 0x1f, (byte) 0x9d, 3, 4 }, |
| 3)); |
| assertTrue(ZCompressorInputStream.matches(new byte[] { 0x1f, (byte) 0x9d, 3, 4 }, |
| 4)); |
| } |
| |
| private void testUnarchive(final StreamWrapper<CompressorInputStream> wrapper) throws Exception { |
| final File input = getFile("bla.tar.Z"); |
| final File output = new File(dir, "bla.tar"); |
| try (InputStream is = new FileInputStream(input)) { |
| final InputStream in = wrapper.wrap(is); |
| FileOutputStream out = null; |
| try { |
| out = new FileOutputStream(output); |
| IOUtils.copy(in, out); |
| } finally { |
| if (out != null) { |
| out.close(); |
| } |
| in.close(); |
| } |
| } |
| } |
| |
| } |