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1 | /******************************************************************************* |
2 | * Copyright (c) 2013 Ericsson | |
3 | * All rights reserved. This program and the accompanying materials | |
4 | * are made available under the terms of the Eclipse Public License v1.0 | |
5 | * which accompanies this distribution, and is available at | |
6 | * http://www.eclipse.org/legal/epl-v10.html | |
7 | * | |
8 | * Contributors: | |
9 | * Matthew Khouzam - Initial API and implementation | |
10 | *******************************************************************************/ | |
11 | ||
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12 | package org.eclipse.linuxtools.ctf.core.tests.io; |
13 | ||
14 | import static org.junit.Assert.assertEquals; | |
15 | import static org.junit.Assert.assertNotNull; | |
16 | ||
17 | import java.nio.ByteBuffer; | |
18 | import java.nio.ByteOrder; | |
19 | ||
231c4e1f | 20 | import org.eclipse.jdt.annotation.NonNull; |
486efb2e | 21 | import org.eclipse.linuxtools.ctf.core.event.io.BitBuffer; |
4c67e724 | 22 | import org.eclipse.linuxtools.ctf.core.trace.CTFReaderException; |
866e5b51 FC |
23 | import org.junit.Before; |
24 | import org.junit.Test; | |
25 | ||
26 | /** | |
27 | * The class <code>BitBufferTest</code> contains tests for the class | |
28 | * <code>{@link BitBuffer}</code>. | |
8b8e48ed | 29 | * |
866e5b51 FC |
30 | * @author ematkho |
31 | * @version $Revision: 1.0 $ | |
32 | */ | |
33 | public class BitBufferTest { | |
34 | ||
35 | private BitBuffer fixture; | |
36 | ||
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37 | /** |
38 | * Perform pre-test initialization. | |
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39 | * |
40 | * @throws CTFReaderException | |
41 | * An error that cannot happen (position is under 128) | |
866e5b51 FC |
42 | */ |
43 | @Before | |
4c67e724 | 44 | public void setUp() throws CTFReaderException { |
91052124 | 45 | fixture = new BitBuffer(java.nio.ByteBuffer.allocateDirect(1)); |
866e5b51 | 46 | fixture.setByteOrder(ByteOrder.BIG_ENDIAN); |
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47 | fixture.position(1); |
48 | } | |
49 | ||
866e5b51 FC |
50 | /** |
51 | * Run the BitBuffer() constructor test. | |
52 | */ | |
53 | @Test | |
54 | public void testBitBuffer() { | |
55 | BitBuffer result = new BitBuffer(); | |
56 | ||
57 | assertNotNull(result); | |
58 | assertEquals(0, result.position()); | |
91052124 | 59 | assertNotNull( result.getByteBuffer()); |
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60 | } |
61 | ||
62 | /** | |
63 | * Run the BitBuffer(ByteBuffer) constructor test. | |
64 | */ | |
65 | @Test | |
66 | public void testBitBuffer_fromByteBuffer() { | |
67 | ByteBuffer buf = ByteBuffer.allocate(0); | |
68 | BitBuffer result = new BitBuffer(buf); | |
69 | ||
70 | assertNotNull(result); | |
71 | assertEquals(0, result.position()); | |
72 | } | |
73 | ||
74 | /** | |
75 | * Run the boolean canRead(int) method test. | |
76 | */ | |
77 | @Test | |
78 | public void testCanRead_1param() { | |
79 | int length = 1; | |
80 | boolean result = fixture.canRead(length); | |
81 | ||
91052124 | 82 | assertEquals(true, result); |
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83 | } |
84 | ||
866e5b51 FC |
85 | /** |
86 | * Run the void clear() method test. | |
87 | */ | |
88 | @Test | |
89 | public void testClear() { | |
90 | fixture.clear(); | |
91 | } | |
92 | ||
93 | /** | |
94 | * Run the ByteBuffer getByteBuffer() method test. | |
95 | */ | |
96 | @Test | |
97 | public void testGetByteBuffer() { | |
98 | ByteBuffer result = fixture.getByteBuffer(); | |
99 | ||
100 | assertNotNull(result); | |
91052124 | 101 | assertEquals("java.nio.DirectByteBuffer[pos=0 lim=1 cap=1]", result.toString()); |
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102 | assertEquals(true, result.isDirect()); |
103 | assertEquals(false, result.hasArray()); | |
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104 | assertEquals(1, result.limit()); |
105 | assertEquals(1, result.remaining()); | |
866e5b51 | 106 | assertEquals(0, result.position()); |
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107 | assertEquals(1, result.capacity()); |
108 | assertEquals(true, result.hasRemaining()); | |
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109 | assertEquals(false, result.isReadOnly()); |
110 | } | |
111 | ||
112 | /** | |
113 | * Run the ByteOrder getByteOrder() method test. | |
114 | */ | |
115 | @Test | |
116 | public void testGetByteOrder() { | |
117 | ByteOrder result = fixture.getByteOrder(); | |
118 | ||
119 | assertNotNull(result); | |
4a9c1f07 | 120 | assertEquals("BIG_ENDIAN", result.toString()); |
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121 | } |
122 | ||
123 | /** | |
124 | * Run the ByteOrder order() method test. | |
125 | */ | |
126 | @Test | |
127 | public void testGetOrder() { | |
8b8e48ed | 128 | ByteOrder result = fixture.getByteOrder(); |
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129 | |
130 | assertNotNull(result); | |
4a9c1f07 | 131 | assertEquals("BIG_ENDIAN", result.toString()); |
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132 | } |
133 | ||
134 | /** | |
135 | * Run the void order(ByteOrder) method test. | |
136 | */ | |
137 | @Test | |
138 | public void testSetOrder() { | |
139 | ByteOrder order = ByteOrder.BIG_ENDIAN; | |
140 | ||
8b8e48ed | 141 | fixture.setByteOrder(order); |
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142 | } |
143 | ||
144 | /** | |
145 | * Run the int position() method test. | |
146 | */ | |
147 | @Test | |
148 | public void testGetPosition() { | |
47ca6c05 | 149 | long result = fixture.position(); |
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150 | |
151 | assertEquals(1, result); | |
152 | } | |
153 | ||
154 | /** | |
155 | * Run the void position(int) method test. | |
4c67e724 MK |
156 | * |
157 | * @throws CTFReaderException | |
158 | * out of bounds? won't happen | |
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159 | */ |
160 | @Test | |
4c67e724 | 161 | public void testSetPosition() throws CTFReaderException { |
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162 | int newPosition = 1; |
163 | fixture.position(newPosition); | |
164 | } | |
165 | ||
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166 | /** |
167 | * Run the void setByteOrder(ByteOrder) method test. | |
168 | */ | |
169 | @Test | |
170 | public void testSetByteOrder() { | |
171 | ByteOrder byteOrder = ByteOrder.BIG_ENDIAN; | |
172 | fixture.setByteOrder(byteOrder); | |
173 | } | |
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174 | |
175 | /** | |
176 | * Test the get function | |
177 | */ | |
178 | @Test | |
179 | public void testGetBytes() { | |
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180 | @NonNull |
181 | byte[] data = new byte[2]; | |
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182 | ByteBuffer bb = ByteBuffer.allocate(10); |
183 | bb.put((byte) 0); | |
184 | bb.put((byte) 1); | |
185 | bb.put((byte) 1); | |
186 | bb.put((byte) 0); | |
187 | fixture = new BitBuffer(bb); | |
188 | fixture.get(data); | |
189 | assertEquals(0, data[0]); | |
190 | assertEquals(1, data[1]); | |
191 | fixture.get(data); | |
192 | assertEquals(1, data[0]); | |
193 | assertEquals(0, data[1]); | |
194 | } | |
195 | ||
196 | /** | |
197 | * Test the get function | |
198 | * | |
199 | * @throws CTFReaderException | |
200 | * won't happen but we seek in a buffer | |
201 | */ | |
202 | @Test | |
203 | public void testGetBytesMiddle() throws CTFReaderException { | |
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204 | @NonNull |
205 | byte[] data = new byte[5]; | |
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206 | // this string has been carefully selected and tested... don't change |
207 | // the string and expect the result to be the same. | |
208 | ByteBuffer bb = ByteBuffer.wrap(new String("hello world").getBytes()); | |
209 | fixture = new BitBuffer(bb); | |
210 | fixture.position(6 * 8); | |
211 | fixture.get(data); | |
212 | String actual = new String(data); | |
213 | assertEquals("world", actual); | |
214 | } | |
866e5b51 | 215 | } |