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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   * http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.commons.compress.compressors.lz4;
20  
21  import static org.junit.jupiter.api.Assertions.assertArrayEquals;
22  
23  import java.io.InputStream;
24  import java.io.OutputStream;
25  import java.nio.file.Files;
26  import java.nio.file.Path;
27  
28  import org.apache.commons.compress.AbstractTest;
29  import org.apache.commons.compress.compressors.CompressorStreamFactory;
30  import org.apache.commons.io.IOUtils;
31  import org.junit.jupiter.api.Test;
32  
33  public class FactoryTest extends AbstractTest {
34  
35      private void roundtripViaFactory(final String format) throws Exception {
36          final Path input = getPath("bla.tar");
37          final Path outputSz = getTempDirFile().toPath().resolve(input.getFileName() + "." + format + ".lz4");
38          try (OutputStream os = Files.newOutputStream(outputSz);
39                  OutputStream los = new CompressorStreamFactory().createCompressorOutputStream(format, os)) {
40              Files.copy(input, los);
41          }
42          try (InputStream is = Files.newInputStream(input);
43                  InputStream sis = new CompressorStreamFactory().createCompressorInputStream(format, Files.newInputStream(outputSz))) {
44              final byte[] expected = IOUtils.toByteArray(is);
45              final byte[] actual = IOUtils.toByteArray(sis);
46              assertArrayEquals(expected, actual);
47          }
48      }
49  
50      @Test
51      public void testBlockRoundtripViaFactory() throws Exception {
52          roundtripViaFactory(CompressorStreamFactory.getLZ4Block());
53      }
54  
55      @Test
56      public void testFrameRoundtripViaFactory() throws Exception {
57          roundtripViaFactory(CompressorStreamFactory.getLZ4Framed());
58      }
59  }