1 /***
2 * Redistribution and use in source and binary forms, with or without
3 * modification, are permitted provided that the following conditions are
4 * met :
5 *
6 * . Redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer.
8 *
9 * . Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * . The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $Id$
29 */
30
31 package palmed.edit.text;
32
33 import java.io.ByteArrayInputStream;
34 import java.io.ByteArrayOutputStream;
35 import java.io.IOException;
36 import junit.framework.TestCase;
37 import org.easymock.MockControl;
38
39 /***
40 * LineDelimiterInspector test case.
41 *
42 * @author Mathieu Champlon
43 * @version $Revision$ $Date$
44 */
45 public class LineDelimiterInspectorTest extends TestCase
46 {
47 /***
48 * Tested object.
49 */
50 private LineDelimiterInspector inspector;
51 /***
52 * Stub objects.
53 */
54 private ByteArrayOutputStream outputStreamStub;
55
56 protected void setUp()
57 {
58 outputStreamStub = new ByteArrayOutputStream();
59 }
60
61 private void assertArrayEquals( byte[] array1, byte[] array2 )
62 {
63 final MockControl controlArrayComparator = MockControl.createControl( IArrayComparator.class );
64 final IArrayComparator mockArrayComparator = (IArrayComparator)controlArrayComparator.getMock();
65 mockArrayComparator.compare( array1 );
66 controlArrayComparator.setMatcher( MockControl.ARRAY_MATCHER );
67 controlArrayComparator.replay();
68 mockArrayComparator.compare( array2 );
69 controlArrayComparator.verify();
70 }
71
72 private ByteArrayInputStream createInputStreamStub( final String string )
73 {
74 return new ByteArrayInputStream( string.getBytes() );
75 }
76
77 public void testDefaultDelimiterIsCRLF() throws IOException
78 {
79 inspector = new LineDelimiterInspector();
80 inspector.write( outputStreamStub );
81 assertArrayEquals( "\r\n".getBytes(), outputStreamStub.toByteArray() );
82 }
83
84 public void testWrappedStreamContentIsForwarded() throws IOException
85 {
86 final String string = "this is a test";
87 inspector = new LineDelimiterInspector( createInputStreamStub( string ) );
88 final byte[] output = new byte[string.length()];
89 inspector.read( output );
90 assertArrayEquals( string.getBytes(), output );
91 }
92
93 public void testWrappedStreamPartialContentIsForwarded() throws IOException
94 {
95 final String string = "this is a test";
96 inspector = new LineDelimiterInspector( createInputStreamStub( string ) );
97 byte[] output = new byte[5];
98 inspector.read( output, 0, 5 );
99 assertArrayEquals( string.substring( 0, 5 ).getBytes(), output );
100 }
101
102 public void testDetectsCR() throws IOException
103 {
104 final String string = "this is\r a test";
105 inspector = new LineDelimiterInspector( createInputStreamStub( string ) );
106 final byte[] output = new byte[string.length()];
107 inspector.read( output );
108 assertArrayEquals( string.getBytes(), output );
109 inspector.write( outputStreamStub );
110 assertArrayEquals( "\r".getBytes(), outputStreamStub.toByteArray() );
111 }
112
113 public void testDetectsLF() throws IOException
114 {
115 final String string = "this is\n a test";
116 inspector = new LineDelimiterInspector( createInputStreamStub( string ) );
117 final byte[] output = new byte[string.length()];
118 inspector.read( output );
119 assertArrayEquals( string.getBytes(), output );
120 inspector.write( outputStreamStub );
121 assertArrayEquals( "\n".getBytes(), outputStreamStub.toByteArray() );
122 }
123
124 public void testDetectsCRLF() throws IOException
125 {
126 final String string = "this is\r\n a test";
127 inspector = new LineDelimiterInspector( createInputStreamStub( string ) );
128 final byte[] output = new byte[string.length()];
129 inspector.read( output, 0, string.length() );
130 assertArrayEquals( string.getBytes(), output );
131 inspector.write( outputStreamStub );
132 assertArrayEquals( "\r\n".getBytes(), outputStreamStub.toByteArray() );
133 }
134
135 public void testPartialStreamDetectsCRLF() throws IOException
136 {
137 final String string = "\r\n\r\n";
138 inspector = new LineDelimiterInspector( createInputStreamStub( string ) );
139 final byte[] output = new byte[3];
140 for( int i = 0; i < string.length() / output.length + 1; ++i )
141 inspector.read( output, 0, output.length );
142 inspector.write( outputStreamStub );
143 assertArrayEquals( "\r\n".getBytes(), outputStreamStub.toByteArray() );
144 }
145 }