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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.ByteArrayOutputStream;
31  import java.io.IOException;
32  import java.io.InputStream;
33  import java.io.OutputStream;
34  import java.util.concurrent.atomic.AtomicBoolean;
35  
36  import org.apache.http.Consts;
37  import org.apache.http.HttpEntity;
38  import org.apache.http.entity.ByteArrayEntity;
39  import org.apache.http.entity.ContentType;
40  import org.apache.http.entity.InputStreamEntity;
41  import org.apache.http.entity.StringEntity;
42  import org.apache.http.util.EntityUtils;
43  import org.junit.Assert;
44  import org.junit.Test;
45  import org.mockito.Mockito;
46  
47  public class TestGZip {
48  
49      @Test
50      public void testBasic() throws Exception {
51          final String s = "some kind of text";
52          final StringEntity e = new StringEntity(s, ContentType.TEXT_PLAIN);
53          e.setChunked(false);
54          final GzipCompressingEntity gzipe = new GzipCompressingEntity(e);
55          Assert.assertTrue(gzipe.isChunked());
56          Assert.assertEquals(-1, gzipe.getContentLength());
57          Assert.assertNotNull(gzipe.getContentEncoding());
58          Assert.assertEquals("gzip", gzipe.getContentEncoding().getValue());
59      }
60  
61      @Test
62      public void testCompressionDecompression() throws Exception {
63          final StringEntity in = new StringEntity("some kind of text", ContentType.TEXT_PLAIN);
64          final GzipCompressingEntity gzipe = new GzipCompressingEntity(in);
65          final ByteArrayOutputStream buf = new ByteArrayOutputStream();
66          gzipe.writeTo(buf);
67          final ByteArrayEntity out = new ByteArrayEntity(buf.toByteArray());
68          final GzipDecompressingEntity gunzipe = new GzipDecompressingEntity(out);
69          Assert.assertEquals("some kind of text", EntityUtils.toString(gunzipe, Consts.ASCII));
70      }
71  
72      @Test
73      public void testGzipDecompressingEntityDoesNotCrashInConstructorAndLeaveInputStreamOpen()
74              throws Exception {
75          final AtomicBoolean inputStreamIsClosed = new AtomicBoolean(false);
76          final HttpEntity in = new InputStreamEntity(new InputStream() {
77              @Override
78              public int read() throws IOException {
79                  throw new IOException("An exception occurred");
80              }
81  
82              @Override
83              public void close() throws IOException {
84                  inputStreamIsClosed.set(true);
85              }
86  
87          }, 123);
88          final GzipDecompressingEntity gunzipe = new GzipDecompressingEntity(in);
89          try {
90              gunzipe.getContent();
91          } catch (final IOException e) {
92              // As I cannot get the content, GzipDecompressingEntity is supposed
93              // to have released everything
94              Assert.assertTrue(inputStreamIsClosed.get());
95          }
96      }
97  
98      @Test
99      public void testCompressionIOExceptionLeavesOutputStreamOpen() throws Exception {
100         final HttpEntity in = Mockito.mock(HttpEntity.class);
101         Mockito.doThrow(new IOException("Ooopsie")).when(in).writeTo(Mockito.<OutputStream>any());
102         final GzipCompressingEntity gzipe = new GzipCompressingEntity(in);
103         final OutputStream out = Mockito.mock(OutputStream.class);
104         try {
105             gzipe.writeTo(out);
106         } catch (IOException ex) {
107             Mockito.verify(out, Mockito.never()).close();
108         }
109     }
110 
111 }