1 | /**************************************************************** |
---|
2 | * Licensed to the Apache Software Foundation (ASF) under one * |
---|
3 | * or more contributor license agreements. See the NOTICE file * |
---|
4 | * distributed with this work for additional information * |
---|
5 | * regarding copyright ownership. The ASF licenses this file * |
---|
6 | * to you under the Apache License, Version 2.0 (the * |
---|
7 | * "License"); you may not use this file except in compliance * |
---|
8 | * with the License. You may obtain a copy of the License at * |
---|
9 | * * |
---|
10 | * http://www.apache.org/licenses/LICENSE-2.0 * |
---|
11 | * * |
---|
12 | * Unless required by applicable law or agreed to in writing, * |
---|
13 | * software distributed under the License is distributed on an * |
---|
14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * |
---|
15 | * KIND, either express or implied. See the License for the * |
---|
16 | * specific language governing permissions and limitations * |
---|
17 | * under the License. * |
---|
18 | ****************************************************************/ |
---|
19 | |
---|
20 | package org.apache.james.mime4j.io; |
---|
21 | |
---|
22 | import org.apache.james.mime4j.io.LineReaderInputStreamAdaptor; |
---|
23 | import org.apache.james.mime4j.io.MaxLineLimitException; |
---|
24 | import org.apache.james.mime4j.util.ByteArrayBuffer; |
---|
25 | |
---|
26 | import java.io.ByteArrayInputStream; |
---|
27 | import java.io.ByteArrayOutputStream; |
---|
28 | |
---|
29 | import junit.framework.TestCase; |
---|
30 | |
---|
31 | public class LineReaderInputStreamAdaptorTest extends TestCase { |
---|
32 | |
---|
33 | public void testBasicOperations() throws Exception { |
---|
34 | String text = "ah blahblah"; |
---|
35 | byte[] b1 = text.getBytes("US-ASCII"); |
---|
36 | |
---|
37 | LineReaderInputStreamAdaptor instream = new LineReaderInputStreamAdaptor( |
---|
38 | new ByteArrayInputStream(b1)); |
---|
39 | |
---|
40 | assertEquals((byte)'a', instream.read()); |
---|
41 | assertEquals((byte)'h', instream.read()); |
---|
42 | assertEquals((byte)' ', instream.read()); |
---|
43 | |
---|
44 | byte[] tmp1 = new byte[4]; |
---|
45 | assertEquals(4, instream.read(tmp1)); |
---|
46 | assertEquals(4, instream.read(tmp1)); |
---|
47 | |
---|
48 | assertEquals(-1, instream.read(tmp1)); |
---|
49 | assertEquals(-1, instream.read(tmp1)); |
---|
50 | assertEquals(-1, instream.read()); |
---|
51 | assertEquals(-1, instream.read()); |
---|
52 | } |
---|
53 | |
---|
54 | public void testBasicReadLine() throws Exception { |
---|
55 | |
---|
56 | String[] teststrs = new String[5]; |
---|
57 | teststrs[0] = "Hello\r\n"; |
---|
58 | teststrs[1] = "This string should be much longer than the size of the input buffer " + |
---|
59 | "which is only 16 bytes for this test\r\n"; |
---|
60 | StringBuilder sb = new StringBuilder(); |
---|
61 | for (int i = 0; i < 15; i++) { |
---|
62 | sb.append("123456789 "); |
---|
63 | } |
---|
64 | sb.append("and stuff like that\r\n"); |
---|
65 | teststrs[2] = sb.toString(); |
---|
66 | teststrs[3] = "\r\n"; |
---|
67 | teststrs[4] = "And goodbye\r\n"; |
---|
68 | |
---|
69 | ByteArrayOutputStream outstream = new ByteArrayOutputStream(); |
---|
70 | |
---|
71 | for (String teststr : teststrs) { |
---|
72 | outstream.write(teststr.getBytes("US-ASCII")); |
---|
73 | } |
---|
74 | byte[] raw = outstream.toByteArray(); |
---|
75 | |
---|
76 | LineReaderInputStreamAdaptor instream = new LineReaderInputStreamAdaptor( |
---|
77 | new ByteArrayInputStream(raw)); |
---|
78 | |
---|
79 | ByteArrayBuffer linebuf = new ByteArrayBuffer(8); |
---|
80 | for (String teststr : teststrs) { |
---|
81 | linebuf.clear(); |
---|
82 | instream.readLine(linebuf); |
---|
83 | String s = new String(linebuf.toByteArray(), "US-ASCII"); |
---|
84 | assertEquals(teststr, s); |
---|
85 | } |
---|
86 | assertEquals(-1, instream.readLine(linebuf)); |
---|
87 | assertEquals(-1, instream.readLine(linebuf)); |
---|
88 | } |
---|
89 | |
---|
90 | public void testReadEmptyLine() throws Exception { |
---|
91 | |
---|
92 | String teststr = "\n\n\r\n\r\r\n\n\n\n\n\n"; |
---|
93 | byte[] raw = teststr.getBytes("US-ASCII"); |
---|
94 | |
---|
95 | LineReaderInputStreamAdaptor instream = new LineReaderInputStreamAdaptor( |
---|
96 | new ByteArrayInputStream(raw)); |
---|
97 | |
---|
98 | ByteArrayBuffer linebuf = new ByteArrayBuffer(8); |
---|
99 | linebuf.clear(); |
---|
100 | instream.readLine(linebuf); |
---|
101 | String s = new String(linebuf.toByteArray(), "US-ASCII"); |
---|
102 | assertEquals("\n", s); |
---|
103 | |
---|
104 | linebuf.clear(); |
---|
105 | instream.readLine(linebuf); |
---|
106 | s = new String(linebuf.toByteArray(), "US-ASCII"); |
---|
107 | assertEquals("\n", s); |
---|
108 | |
---|
109 | linebuf.clear(); |
---|
110 | instream.readLine(linebuf); |
---|
111 | s = new String(linebuf.toByteArray(), "US-ASCII"); |
---|
112 | assertEquals("\r\n", s); |
---|
113 | |
---|
114 | linebuf.clear(); |
---|
115 | instream.readLine(linebuf); |
---|
116 | s = new String(linebuf.toByteArray(), "US-ASCII"); |
---|
117 | assertEquals("\r\r\n", s); |
---|
118 | |
---|
119 | linebuf.clear(); |
---|
120 | instream.readLine(linebuf); |
---|
121 | s = new String(linebuf.toByteArray(), "US-ASCII"); |
---|
122 | assertEquals("\n", s); |
---|
123 | |
---|
124 | linebuf.clear(); |
---|
125 | instream.readLine(linebuf); |
---|
126 | s = new String(linebuf.toByteArray(), "US-ASCII"); |
---|
127 | assertEquals("\n", s); |
---|
128 | |
---|
129 | linebuf.clear(); |
---|
130 | instream.readLine(linebuf); |
---|
131 | s = new String(linebuf.toByteArray(), "US-ASCII"); |
---|
132 | assertEquals("\n", s); |
---|
133 | |
---|
134 | linebuf.clear(); |
---|
135 | instream.readLine(linebuf); |
---|
136 | s = new String(linebuf.toByteArray(), "US-ASCII"); |
---|
137 | assertEquals("\n", s); |
---|
138 | |
---|
139 | linebuf.clear(); |
---|
140 | instream.readLine(linebuf); |
---|
141 | s = new String(linebuf.toByteArray(), "US-ASCII"); |
---|
142 | assertEquals("\n", s); |
---|
143 | |
---|
144 | assertEquals(-1, instream.readLine(linebuf)); |
---|
145 | assertEquals(-1, instream.readLine(linebuf)); |
---|
146 | } |
---|
147 | |
---|
148 | public void testReadEmptyLineMaxLimit() throws Exception { |
---|
149 | |
---|
150 | String teststr = "1234567890\r\n"; |
---|
151 | byte[] raw = teststr.getBytes("US-ASCII"); |
---|
152 | |
---|
153 | LineReaderInputStreamAdaptor instream1 = new LineReaderInputStreamAdaptor( |
---|
154 | new ByteArrayInputStream(raw), 13); |
---|
155 | ByteArrayBuffer linebuf = new ByteArrayBuffer(8); |
---|
156 | linebuf.clear(); |
---|
157 | instream1.readLine(linebuf); |
---|
158 | |
---|
159 | LineReaderInputStreamAdaptor instream2 = new LineReaderInputStreamAdaptor( |
---|
160 | new ByteArrayInputStream(raw), 12); |
---|
161 | linebuf.clear(); |
---|
162 | try { |
---|
163 | instream2.readLine(linebuf); |
---|
164 | fail("MaxLineLimitException should have been thrown"); |
---|
165 | } catch (MaxLineLimitException ex) { |
---|
166 | } |
---|
167 | } |
---|
168 | |
---|
169 | } |
---|