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19
20 package org.apache.james.util;
21
22 import java.io.ByteArrayOutputStream JavaDoc;
23 import java.io.IOException JavaDoc;
24 import java.io.OutputStream JavaDoc;
25
26 import junit.framework.TestCase;
27
28 /**
29  * Tests for the ExtraDotOutputStream
30  */
31 public class ExtraDotOutputStreamTest extends TestCase {
32
33     public void testMain() throws IOException JavaDoc {
34         String JavaDoc data = ".This is a test\r\nof the thing.\r\nWe should not have much trouble.\r\n.doubled?\r\nor not?\n.doubled\nor not?\r\n\r\n\n\n\r\r\r\n";
35         ByteArrayOutputStream JavaDoc bOut = new ByteArrayOutputStream JavaDoc();
36         OutputStream JavaDoc os = new ExtraDotOutputStream(bOut);
37         os.write(data.getBytes());
38         os.flush();
39         String JavaDoc expected = "..This is a test\r\nof the thing.\r\nWe should not have much trouble.\r\n..doubled?\r\nor not?\r\n..doubled\r\nor not?\r\n\r\n\r\n\r\n\r\n\r\n\r\n";
40         assertEquals(expected,bOut.toString());
41     }
42
43     /*
44      * Test method for 'org.apache.james.util.ExtraDotOutputStream.checkCRLFTerminator()'
45      */
46     public void testCheckCRLFTerminator() throws IOException JavaDoc {
47         ByteArrayOutputStream JavaDoc bOut = new ByteArrayOutputStream JavaDoc();
48         ExtraDotOutputStream os = new ExtraDotOutputStream(bOut);
49         // if the stream is empty then we should not add the CRLF.
50 os.checkCRLFTerminator();
51         os.flush();
52         assertEquals("",bOut.toString());
53         os.write("Test".getBytes());
54         os.flush();
55         assertEquals("Test",bOut.toString());
56         os.checkCRLFTerminator();
57         os.flush();
58         assertEquals("Test\r\n",bOut.toString());
59         // if the stream ends with \r we should simply add the \n
60 os.write("A line with incomplete ending\r".getBytes());
61         os.flush();
62         assertEquals("Test\r\nA line with incomplete ending\r",bOut.toString());
63         os.checkCRLFTerminator();
64         os.flush();
65         assertEquals("Test\r\nA line with incomplete ending\r\n",bOut.toString());
66         // already correctly terminated, should leave the output untouched
67 os.checkCRLFTerminator();
68         os.flush();
69         assertEquals("Test\r\nA line with incomplete ending\r\n",bOut.toString());
70     }
71
72 }
73
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