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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.archivers.cpio;
20  
21  import static org.junit.Assert.assertArrayEquals;
22  import static org.junit.Assert.assertEquals;
23  
24  import org.junit.Test;
25  
26  public class CpioUtilTest {
27  
28      @Test
29      public void oldBinMagic2ByteArrayNotSwapped() {
30          assertArrayEquals(new byte[] { (byte) 0xc7, 0x71 },
31                            CpioUtil.long2byteArray(CpioConstants.MAGIC_OLD_BINARY,
32                                                    2, false));
33      }
34  
35      @Test
36      public void oldBinMagic2ByteArraySwapped() {
37          assertArrayEquals(new byte[] { 0x71, (byte) 0xc7,  },
38                            CpioUtil.long2byteArray(CpioConstants.MAGIC_OLD_BINARY,
39                                                    2, true));
40      }
41  
42      @Test
43      public void oldBinMagicFromByteArrayNotSwapped() {
44          assertEquals(CpioConstants.MAGIC_OLD_BINARY,
45                       CpioUtil.byteArray2long(new byte[] { (byte) 0xc7, 0x71 },
46                                               false));
47      }
48  
49      @Test
50      public void oldBinMagicFromByteArraySwapped() {
51          assertEquals(CpioConstants.MAGIC_OLD_BINARY,
52                       CpioUtil.byteArray2long(new byte[] { 0x71, (byte) 0xc7 },
53                                               true));
54      }
55  
56  }