View Javadoc
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.hc.core5.http.io.entity;
29  
30  import java.io.ByteArrayInputStream;
31  import java.io.ByteArrayOutputStream;
32  import java.io.InputStream;
33  import java.nio.charset.StandardCharsets;
34  
35  import org.apache.hc.core5.http.ContentType;
36  import org.apache.hc.core5.http.impl.io.EmptyInputStream;
37  import org.junit.Assert;
38  import org.junit.Test;
39  
40  /**
41   * Unit tests for {@link InputStreamEntity}.
42   *
43   */
44  public class TestInputStreamEntity {
45  
46      @Test
47      public void testBasics() throws Exception {
48          final byte[] bytes = "Message content".getBytes(StandardCharsets.ISO_8859_1);
49          final InputStreamEntity entity = new InputStreamEntity(new ByteArrayInputStream(bytes), bytes.length, null);
50  
51          Assert.assertEquals(bytes.length, entity.getContentLength());
52          Assert.assertNotNull(entity.getContent());
53          Assert.assertFalse(entity.isRepeatable());
54          Assert.assertTrue(entity.isStreaming());
55      }
56  
57      @Test(expected = NullPointerException.class)
58      public void testNullConstructor() throws Exception {
59          new InputStreamEntity(null, 0, null);
60      }
61  
62      @Test
63      public void testUnknownLengthConstructor() throws Exception {
64          final InputStreamEntity entity = new InputStreamEntity(EmptyInputStream.INSTANCE, null);
65          Assert.assertEquals(-1, entity.getContentLength());
66      }
67  
68      @Test
69      public void testWriteTo() throws Exception {
70          final String message = "Message content";
71          final byte[] bytes = message.getBytes(StandardCharsets.ISO_8859_1);
72          final InputStream inStream = new ByteArrayInputStream(bytes);
73          final InputStreamEntity entity = new InputStreamEntity(inStream, bytes.length,
74                  ContentType.TEXT_PLAIN.withCharset(StandardCharsets.ISO_8859_1));
75  
76          final ByteArrayOutputStream out = new ByteArrayOutputStream();
77          entity.writeTo(out);
78          final byte[] writtenBytes = out.toByteArray();
79          Assert.assertNotNull(writtenBytes);
80          Assert.assertEquals(bytes.length, writtenBytes.length);
81  
82          final String s = new String(writtenBytes, StandardCharsets.ISO_8859_1.name());
83          Assert.assertEquals(message, s);
84      }
85  
86      @Test
87      public void testWriteToPartialContent() throws Exception {
88          final String message = "Message content";
89          final byte[] bytes = message.getBytes(StandardCharsets.ISO_8859_1);
90          final InputStream inStream = new ByteArrayInputStream(bytes);
91          final int contentLength = 7;
92          final InputStreamEntity entity = new InputStreamEntity(inStream, contentLength,
93                  ContentType.TEXT_PLAIN.withCharset(StandardCharsets.ISO_8859_1));
94  
95          final ByteArrayOutputStream out = new ByteArrayOutputStream();
96          entity.writeTo(out);
97          final byte[] writtenBytes = out.toByteArray();
98          Assert.assertNotNull(writtenBytes);
99          Assert.assertEquals(contentLength, writtenBytes.length);
100 
101         final String s = new String(writtenBytes, StandardCharsets.ISO_8859_1.name());
102         Assert.assertEquals(message.substring(0, contentLength), s);
103     }
104 
105     @Test
106     public void testWriteToUnknownLength() throws Exception {
107         final String message = "Message content";
108         final byte[] bytes = message.getBytes(StandardCharsets.ISO_8859_1);
109         final InputStreamEntity entity = new InputStreamEntity(new ByteArrayInputStream(bytes),
110                 ContentType.TEXT_PLAIN.withCharset(StandardCharsets.ISO_8859_1));
111 
112         final ByteArrayOutputStream out = new ByteArrayOutputStream();
113         entity.writeTo(out);
114         final byte[] writtenBytes = out.toByteArray();
115         Assert.assertNotNull(writtenBytes);
116         Assert.assertEquals(bytes.length, writtenBytes.length);
117 
118         final String s = new String(writtenBytes, StandardCharsets.ISO_8859_1.name());
119         Assert.assertEquals(message, s);
120     }
121 
122     @Test(expected = NullPointerException.class)
123     public void testWriteToNull() throws Exception {
124         final InputStreamEntity entity = new InputStreamEntity(EmptyInputStream.INSTANCE, 0, null);
125         entity.writeTo(null);
126     }
127 }