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17
18
19 package org.apache.poi.util;
20
21 import junit.framework.*;
22
23 import java.io.*;
24
25
30
31 public class TestByteField
32 extends TestCase
33 {
34
35
40
41 public TestByteField(String  name)
42 {
43 super(name);
44 }
45
46 static private final byte[] _test_array =
47 {
48 Byte.MIN_VALUE, ( byte ) -1, ( byte ) 0, ( byte ) 1, Byte.MAX_VALUE
49 };
50
51
54
55 public void testConstructors()
56 {
57 try
58 {
59 new ByteField(-1);
60 fail("Should have caught ArrayIndexOutOfBoundsException");
61 }
62 catch (ArrayIndexOutOfBoundsException ignored_e)
63 {
64
65 }
67 ByteField field = new ByteField(2);
68
69 assertEquals(( byte ) 0, field.get());
70 try
71 {
72 new ByteField(-1, ( byte ) 1);
73 fail("Should have caught ArrayIndexOutOfBoundsException");
74 }
75 catch (ArrayIndexOutOfBoundsException ignored_e)
76 {
77
78 }
80 field = new ByteField(2, ( byte ) 3);
81 assertEquals(( byte ) 3, field.get());
82 byte[] array = new byte[ 3 ];
83
84 try
85 {
86 new ByteField(-1, ( byte ) 1, array);
87 fail("Should have caught ArrayIndexOutOfBoundsException");
88 }
89 catch (ArrayIndexOutOfBoundsException ignored_e)
90 {
91
92 }
94 field = new ByteField(2, ( byte ) 4, array);
95 assertEquals(( byte ) 4, field.get());
96 assertEquals(( byte ) 4, array[ 2 ]);
97 array = new byte[ 2 ];
98 try
99 {
100 new ByteField(2, ( byte ) 5, array);
101 fail("should have gotten ArrayIndexOutOfBoundsException");
102 }
103 catch (ArrayIndexOutOfBoundsException ignored_e)
104 {
105
106 }
108 for (int j = 0; j < _test_array.length; j++)
109 {
110 array = new byte[ 1 ];
111 new ByteField(0, _test_array[ j ], array);
112 assertEquals(_test_array[ j ], new ByteField(0, array).get());
113 }
114 }
115
116
119
120 public void testSet()
121 {
122 ByteField field = new ByteField(0);
123 byte[] array = new byte[ 1 ];
124
125 for (int j = 0; j < _test_array.length; j++)
126 {
127 field.set(_test_array[ j ]);
128 assertEquals("testing _1 " + j, _test_array[ j ], field.get());
129 field = new ByteField(0);
130 field.set(_test_array[ j ], array);
131 assertEquals("testing _2 ", _test_array[ j ], field.get());
132 assertEquals("testing _3 ", _test_array[ j ], array[ 0 ]);
133 }
134 }
135
136
139
140 public void testReadFromBytes()
141 {
142 ByteField field = new ByteField(1);
143 byte[] array = new byte[ 1 ];
144
145 try
146 {
147 field.readFromBytes(array);
148 fail("should have caught ArrayIndexOutOfBoundsException");
149 }
150 catch (ArrayIndexOutOfBoundsException ignored_e)
151 {
152
153 }
155 field = new ByteField(0);
156 for (int j = 0; j < _test_array.length; j++)
157 {
158 array[ 0 ] = _test_array[ j ];
159 field.readFromBytes(array);
160 assertEquals("testing " + j, _test_array[ j ], field.get());
161 }
162 }
163
164
169
170 public void testReadFromStream()
171 throws IOException
172 {
173 ByteField field = new ByteField(0);
174 byte[] buffer = new byte[ _test_array.length ];
175
176 System.arraycopy(_test_array, 0, buffer, 0, buffer.length);
177 ByteArrayInputStream stream = new ByteArrayInputStream(buffer);
178
179 for (int j = 0; j < buffer.length; j++)
180 {
181 field.readFromStream(stream);
182 assertEquals("Testing " + j, _test_array[ j ], field.get());
183 }
184 }
185
186
189
190 public void testWriteToBytes()
191 {
192 ByteField field = new ByteField(0);
193 byte[] array = new byte[ 1 ];
194
195 for (int j = 0; j < _test_array.length; j++)
196 {
197 field.set(_test_array[ j ]);
198 field.writeToBytes(array);
199 assertEquals("testing ", _test_array[ j ], array[ 0 ]);
200 }
201 }
202
203
208
209 public static void main(String [] ignored_args)
210 {
211 System.out.println("Testing util.ByteField functionality");
212 junit.textui.TestRunner.run(TestByteField.class);
213 }
214 }
215 |
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