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20 package org.apache.mina.filter;
21
22 import org.apache.mina.common.ByteBuffer;
23 import org.apache.mina.common.IoFilterChain;
24 import org.apache.mina.common.IoSession;
25 import org.apache.mina.common.IoFilter.NextFilter;
26 import org.apache.mina.filter.support.Zlib;
27 import org.apache.mina.common.IoFilter.WriteRequest;
28 import org.easymock.MockControl;
29 import org.easymock.AbstractMatcher;
30
31 import junit.framework.TestCase;
32
33
34
35
36
37 public class CompressionFilterTest extends TestCase {
38 private MockControl mockSession;
39
40 private MockControl mockNextFilter;
41
42 private MockControl mockIoFilterChain;
43
44 private IoSession session;
45
46 private NextFilter nextFilter;
47
48 private IoFilterChain ioFilterChain;
49
50 private CompressionFilter filter;
51
52 private Zlib deflater;
53
54 private Zlib inflater;
55
56 private Zlib actualDeflater;
57
58 private Zlib actualInflater;
59
60
61 String strCompress = "The quick brown fox jumps over the lazy dog. "
62 + "The quick brown fox jumps over the lazy dog. "
63 + "The quick brown fox jumps over the lazy dog. "
64 + "The quick brown fox jumps over the lazy dog. "
65 + "The quick brown fox jumps over the lazy dog. "
66 + "The quick brown fox jumps over the lazy dog. "
67 + "The quick brown fox jumps over the lazy dog. "
68 + "The quick brown fox jumps over the lazy dog. "
69 + "The quick brown fox jumps over the lazy dog. "
70 + "The quick brown fox jumps over the lazy dog. "
71 + "The quick brown fox jumps over the lazy dog. "
72 + "The quick brown fox jumps over the lazy dog. "
73 + "The quick brown fox jumps over the lazy dog. "
74 + "The quick brown fox jumps over the lazy dog. "
75 + "The quick brown fox jumps over the lazy dog. "
76 + "The quick brown fox jumps over the lazy dog. "
77 + "The quick brown fox jumps over the lazy dog. "
78 + "The quick brown fox jumps over the lazy dog. "
79 + "The quick brown fox jumps over the lazy dog. "
80 + "The quick brown fox jumps over the lazy dog. "
81 + "The quick brown fox jumps over the lazy dog. "
82 + "The quick brown fox jumps over the lazy dog. "
83 + "The quick brown fox jumps over the lazy dog. "
84 + "The quick brown fox jumps over the lazy dog. "
85 + "The quick brown fox jumps over the lazy dog. ";
86
87 protected void setUp() {
88
89 mockSession = MockControl.createControl(IoSession.class);
90 mockNextFilter = MockControl.createControl(NextFilter.class);
91 mockIoFilterChain = MockControl.createControl(IoFilterChain.class);
92
93
94 mockNextFilter.setDefaultMatcher(new DataMatcher());
95
96 session = (IoSession) mockSession.getMock();
97 nextFilter = (NextFilter) mockNextFilter.getMock();
98 ioFilterChain = (IoFilterChain) mockIoFilterChain.getMock();
99
100
101 filter = new CompressionFilter(CompressionFilter.COMPRESSION_MAX);
102
103
104 deflater = new Zlib(Zlib.COMPRESSION_MAX, Zlib.MODE_DEFLATER);
105 inflater = new Zlib(Zlib.COMPRESSION_MAX, Zlib.MODE_INFLATER);
106
107
108 actualDeflater = new Zlib(Zlib.COMPRESSION_MAX, Zlib.MODE_DEFLATER);
109 actualInflater = new Zlib(Zlib.COMPRESSION_MAX, Zlib.MODE_INFLATER);
110 }
111
112 public void testCompression() throws Exception {
113
114 ByteBuffer buf = ByteBuffer.wrap(strCompress.getBytes("UTF8"));
115 ByteBuffer actualOutput = actualDeflater.deflate(buf);
116 WriteRequest writeRequest = new WriteRequest(buf);
117
118
119 ioFilterChain.contains(CompressionFilter.class);
120 mockIoFilterChain.setReturnValue(false);
121
122 ioFilterChain.getSession();
123 mockIoFilterChain.setReturnValue(session);
124
125 session.setAttribute(CompressionFilter.class.getName() + ".Deflater",
126 deflater);
127 mockSession.setDefaultMatcher(new DataMatcher());
128 mockSession.setReturnValue(null, MockControl.ONE);
129
130 session.setAttribute(CompressionFilter.class.getName() + ".Inflater",
131 inflater);
132 mockSession.setReturnValue(null, MockControl.ONE);
133
134 session.containsAttribute(CompressionFilter.DISABLE_COMPRESSION_ONCE);
135 mockSession.setReturnValue(false);
136
137 session.getAttribute(CompressionFilter.class.getName() + ".Deflater");
138 mockSession.setReturnValue(deflater);
139
140 nextFilter.filterWrite(session, new WriteRequest(actualOutput));
141
142
143 mockSession.replay();
144 mockIoFilterChain.replay();
145 mockNextFilter.replay();
146
147
148 filter.onPreAdd(ioFilterChain, "CompressionFilter", nextFilter);
149 filter.filterWrite(nextFilter, session, writeRequest);
150
151
152 mockNextFilter.verify();
153
154 assertTrue(true);
155 }
156
157 public void testDecompression() throws Exception {
158
159 ByteBuffer buf = ByteBuffer.wrap(strCompress.getBytes("UTF8"));
160 ByteBuffer byteInput = actualDeflater.deflate(buf);
161 ByteBuffer actualOutput = actualInflater.inflate(byteInput);
162
163
164 ioFilterChain.contains(CompressionFilter.class);
165 mockIoFilterChain.setReturnValue(false);
166
167 ioFilterChain.getSession();
168 mockIoFilterChain.setReturnValue(session);
169
170 session.setAttribute(CompressionFilter.class.getName() + ".Deflater",
171 deflater);
172 mockSession.setDefaultMatcher(new DataMatcher());
173 mockSession.setReturnValue(null, MockControl.ONE);
174
175 session.setAttribute(CompressionFilter.class.getName() + ".Inflater",
176 inflater);
177 mockSession.setReturnValue(null, MockControl.ONE);
178
179 session.getAttribute(CompressionFilter.class.getName() + ".Inflater");
180 mockSession.setReturnValue(inflater);
181
182 nextFilter.messageReceived(session, actualOutput);
183
184
185 mockSession.replay();
186 mockIoFilterChain.replay();
187 mockNextFilter.replay();
188
189
190 filter.onPreAdd(ioFilterChain, "CompressionFilter", nextFilter);
191 filter.messageReceived(nextFilter, session, byteInput);
192
193
194 mockNextFilter.verify();
195
196 assertTrue(true);
197 }
198
199
200
201
202
203
204 class DataMatcher extends AbstractMatcher {
205 protected boolean argumentMatches(Object arg0, Object arg1) {
206
207 if (arg0 instanceof WriteRequest) {
208 WriteRequest expected = (WriteRequest) arg0;
209 WriteRequest actual = (WriteRequest) arg1;
210 ByteBuffer bExpected = (ByteBuffer) expected.getMessage();
211 ByteBuffer bActual = (ByteBuffer) actual.getMessage();
212 return bExpected.equals(bActual);
213 }
214 return true;
215 }
216 }
217 }