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1   /*
2    * ====================================================================
3    * Licensed to the Apache Software Foundation (ASF) under one
4    * or more contributor license agreements.  See the NOTICE file
5    * distributed with this work for additional information
6    * regarding copyright ownership.  The ASF licenses this file
7    * to you under the Apache License, Version 2.0 (the
8    * "License"); you may not use this file except in compliance
9    * with the License.  You may obtain a copy of the License at
10   *
11   *   http://www.apache.org/licenses/LICENSE-2.0
12   *
13   * Unless required by applicable law or agreed to in writing,
14   * software distributed under the License is distributed on an
15   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16   * KIND, either express or implied.  See the License for the
17   * specific language governing permissions and limitations
18   * under the License.
19   * ====================================================================
20   *
21   * This software consists of voluntary contributions made by many
22   * individuals on behalf of the Apache Software Foundation.  For more
23   * information on the Apache Software Foundation, please see
24   * <http://www.apache.org/>.
25   *
26   */
27  
28  package org.apache.http.client.entity;
29  
30  import java.io.ByteArrayInputStream;
31  import java.io.ByteArrayOutputStream;
32  import java.io.IOException;
33  import java.io.OutputStream;
34  
35  import org.apache.http.Consts;
36  import org.apache.http.HttpEntity;
37  import org.apache.http.entity.ByteArrayEntity;
38  import org.apache.http.entity.ContentType;
39  import org.apache.http.entity.InputStreamEntity;
40  import org.apache.http.entity.StringEntity;
41  import org.apache.http.util.EntityUtils;
42  import org.junit.Assert;
43  import org.junit.Test;
44  import org.mockito.Mockito;
45  
46  public class TestGZip {
47  
48      @Test
49      public void testBasic() throws Exception {
50          final String s = "some kind of text";
51          final StringEntity e = new StringEntity(s, ContentType.TEXT_PLAIN);
52          e.setChunked(false);
53          final GzipCompressingEntity gzipe = new GzipCompressingEntity(e);
54          Assert.assertTrue(gzipe.isChunked());
55          Assert.assertEquals(-1, gzipe.getContentLength());
56          Assert.assertNotNull(gzipe.getContentEncoding());
57          Assert.assertEquals("gzip", gzipe.getContentEncoding().getValue());
58      }
59  
60      @Test
61      public void testCompressionDecompression() throws Exception {
62          final StringEntity in = new StringEntity("some kind of text", ContentType.TEXT_PLAIN);
63          final GzipCompressingEntity gzipe = new GzipCompressingEntity(in);
64          final ByteArrayOutputStream buf = new ByteArrayOutputStream();
65          gzipe.writeTo(buf);
66          final ByteArrayEntity out = new ByteArrayEntity(buf.toByteArray());
67          final GzipDecompressingEntity gunzipe = new GzipDecompressingEntity(out);
68          Assert.assertEquals("some kind of text", EntityUtils.toString(gunzipe, Consts.ASCII));
69      }
70  
71      @Test
72      public void testCompressionIOExceptionLeavesOutputStreamOpen() throws Exception {
73          final HttpEntity in = Mockito.mock(HttpEntity.class);
74          Mockito.doThrow(new IOException("Ooopsie")).when(in).writeTo(Mockito.<OutputStream>any());
75          final GzipCompressingEntity gzipe = new GzipCompressingEntity(in);
76          final OutputStream out = Mockito.mock(OutputStream.class);
77          try {
78              gzipe.writeTo(out);
79          } catch (final IOException ex) {
80              Mockito.verify(out, Mockito.never()).close();
81          }
82      }
83  
84      @Test
85      public void testDecompressionWithMultipleGZipStream() throws IOException {
86          final int[] data = new int[] {
87                  0x1f, 0x8b, 0x08, 0x08, 0x03, 0xf1, 0x55, 0x5a, 0x00, 0x03, 0x74, 0x65, 0x73, 0x74, 0x31, 0x00,
88                  0x2b, 0x2e, 0x29, 0x4a, 0x4d, 0xcc, 0xd5, 0x35, 0xe4, 0x02, 0x00, 0x03, 0x61, 0xf0, 0x5f, 0x09,
89                  0x00, 0x00, 0x00, 0x1f, 0x8b, 0x08, 0x08, 0x08, 0xf1, 0x55, 0x5a, 0x00, 0x03, 0x74, 0x65, 0x73,
90                  0x74, 0x32, 0x00, 0x2b, 0x2e, 0x29, 0x4a, 0x4d, 0xcc, 0xd5, 0x35, 0xe2, 0x02, 0x00, 0xc0, 0x32,
91                  0xdd, 0x74, 0x09, 0x00, 0x00, 0x00
92          };
93          final byte[] bytes = new byte[data.length];
94          for (int i = 0; i < data.length; i++) {
95              bytes[i] = (byte) (data[i] & 0xff);
96          }
97  
98          final InputStreamEntity out = new InputStreamEntity(new ByteArrayInputStream(bytes));
99          final GzipDecompressingEntity gunZipEntity = new GzipDecompressingEntity(out);
100         Assert.assertEquals("stream-1\nstream-2\n", EntityUtils.toString(gunZipEntity, Consts.ASCII));
101     }
102 
103 }