|
1
4 package com.tc.util;
5
6 import com.tc.test.TCTestCase;
7
8 import java.io.StringWriter  ;
9
10
13 public class HexDumpTest extends TCTestCase {
14
15 public void testZeroBytes() throws Exception {
16 assertEquals("0 bytes: ", HexDump.dump(new byte[0]));
17 }
18
19 public void testOneByte() throws Exception {
20 assertEquals("1 byte: 9c .", HexDump.dump(new byte[] { ((byte) 0x9c) }));
21 }
22
23 public void testTwoBytes() throws Exception {
24 assertEquals("2 bytes: 4142 AB", HexDump.dump(new byte[] { (byte) 'A', (byte) 'B' }));
25 }
26
27 public void testThreeBytes() throws Exception {
28 assertEquals("3 bytes: 4142 43 ABC", HexDump.dump(new byte[] { (byte) 'A', (byte) 'B', (byte) 'C' }));
29 }
30
31 public void testFifteenBytes() throws Exception {
32 assertEquals("15 bytes: 4142 4344 4546 4748 494a 4b4c 4d4e 4f ABCDEFGHIJKLMNO", HexDump.dump(new byte[] {
33 (byte) 'A', (byte) 'B', (byte) 'C', (byte) 'D', (byte) 'E', (byte) 'F', (byte) 'G', (byte) 'H', (byte) 'I',
34 (byte) 'J', (byte) 'K', (byte) 'L', (byte) 'M', (byte) 'N', (byte) 'O' }));
35 }
36
37 public void testSixteenBytes() throws Exception {
38 assertEquals("16 bytes: 4142 4344 4546 4748 494a 4b4c 4d4e 4f50 ABCDEFGHIJKLMNOP", HexDump.dump(new byte[] {
39 (byte) 'A', (byte) 'B', (byte) 'C', (byte) 'D', (byte) 'E', (byte) 'F', (byte) 'G', (byte) 'H', (byte) 'I',
40 (byte) 'J', (byte) 'K', (byte) 'L', (byte) 'M', (byte) 'N', (byte) 'O', (byte) 'P' }));
41 }
42
43 public void testSeventeenBytes() throws Exception {
44 assertEquals("17 bytes:\n" + "00000000: 4142 4344 4546 4748 494a 4b4c 4d4e 4f50 ABCDEFGHIJKLMNOP\n"
45 + "00000010: 51 Q\n", HexDump.dump(new byte[] { (byte) 'A',
46 (byte) 'B', (byte) 'C', (byte) 'D', (byte) 'E', (byte) 'F', (byte) 'G', (byte) 'H', (byte) 'I', (byte) 'J',
47 (byte) 'K', (byte) 'L', (byte) 'M', (byte) 'N', (byte) 'O', (byte) 'P', (byte) 'Q' }));
48 }
49
50 public void testMoreBytes() throws Exception {
51 assertEquals("35 bytes:\n" + "00000000: 4142 4344 4546 4748 494a 4b4c 4d4e 4f50 ABCDEFGHIJKLMNOP\n"
52 + "00000010: 5152 5354 5556 5758 595a 5b5c 5d5e 5f60 QRSTUVWXYZ[\\]^_`\n"
53 + "00000020: 6162 63 abc\n", HexDump.dump(new byte[] { (byte) 'A',
54 (byte) 'B', (byte) 'C', (byte) 'D', (byte) 'E', (byte) 'F', (byte) 'G', (byte) 'H', (byte) 'I', (byte) 'J',
55 (byte) 'K', (byte) 'L', (byte) 'M', (byte) 'N', (byte) 'O', (byte) 'P', (byte) 'Q', (byte) 'R', (byte) 'S',
56 (byte) 'T', (byte) 'U', (byte) 'V', (byte) 'W', (byte) 'X', (byte) 'Y', (byte) 'Z', (byte) '[', (byte) '\\',
57 (byte) ']', (byte) '^', (byte) '_', (byte) '`', (byte) 'a', (byte) 'b', (byte) 'c' }));
58 }
59
60 public void testAllValues() throws Exception {
61 byte[] myArray = new byte[512];
62
63 for (int i = 0; i < myArray.length; ++i) {
64 myArray[i] = (byte) (i % 256);
65 }
66
67 assertEquals("512 bytes:\n" + "00000000: 0001 0203 0405 0607 0809 0a0b 0c0d 0e0f ................\n"
68 + "00000010: 1011 1213 1415 1617 1819 1a1b 1c1d 1e1f ................\n"
69 + "00000020: 2021 2223 2425 2627 2829 2a2b 2c2d 2e2f !\"#$%&'()*+,-./\n"
70 + "00000030: 3031 3233 3435 3637 3839 3a3b 3c3d 3e3f 0123456789:;<=>?\n"
71 + "00000040: 4041 4243 4445 4647 4849 4a4b 4c4d 4e4f @ABCDEFGHIJKLMNO\n"
72 + "00000050: 5051 5253 5455 5657 5859 5a5b 5c5d 5e5f PQRSTUVWXYZ[\\]^_\n"
73 + "00000060: 6061 6263 6465 6667 6869 6a6b 6c6d 6e6f `abcdefghijklmno\n"
74 + "00000070: 7071 7273 7475 7677 7879 7a7b 7c7d 7e7f pqrstuvwxyz{|}~.\n"
75 + "00000080: 8081 8283 8485 8687 8889 8a8b 8c8d 8e8f ................\n"
76 + "00000090: 9091 9293 9495 9697 9899 9a9b 9c9d 9e9f ................\n"
77 + "000000a0: a0a1 a2a3 a4a5 a6a7 a8a9 aaab acad aeaf ................\n"
78 + "000000b0: b0b1 b2b3 b4b5 b6b7 b8b9 babb bcbd bebf ................\n"
79 + "000000c0: c0c1 c2c3 c4c5 c6c7 c8c9 cacb cccd cecf ................\n"
80 + "000000d0: d0d1 d2d3 d4d5 d6d7 d8d9 dadb dcdd dedf ................\n"
81 + "000000e0: e0e1 e2e3 e4e5 e6e7 e8e9 eaeb eced eeef ................\n"
82 + "000000f0: f0f1 f2f3 f4f5 f6f7 f8f9 fafb fcfd feff ................\n"
83 + "00000100: 0001 0203 0405 0607 0809 0a0b 0c0d 0e0f ................\n"
84 + "00000110: 1011 1213 1415 1617 1819 1a1b 1c1d 1e1f ................\n"
85 + "00000120: 2021 2223 2425 2627 2829 2a2b 2c2d 2e2f !\"#$%&'()*+,-./\n"
86 + "00000130: 3031 3233 3435 3637 3839 3a3b 3c3d 3e3f 0123456789:;<=>?\n"
87 + "00000140: 4041 4243 4445 4647 4849 4a4b 4c4d 4e4f @ABCDEFGHIJKLMNO\n"
88 + "00000150: 5051 5253 5455 5657 5859 5a5b 5c5d 5e5f PQRSTUVWXYZ[\\]^_\n"
89 + "00000160: 6061 6263 6465 6667 6869 6a6b 6c6d 6e6f `abcdefghijklmno\n"
90 + "00000170: 7071 7273 7475 7677 7879 7a7b 7c7d 7e7f pqrstuvwxyz{|}~.\n"
91 + "00000180: 8081 8283 8485 8687 8889 8a8b 8c8d 8e8f ................\n"
92 + "00000190: 9091 9293 9495 9697 9899 9a9b 9c9d 9e9f ................\n"
93 + "000001a0: a0a1 a2a3 a4a5 a6a7 a8a9 aaab acad aeaf ................\n"
94 + "000001b0: b0b1 b2b3 b4b5 b6b7 b8b9 babb bcbd bebf ................\n"
95 + "000001c0: c0c1 c2c3 c4c5 c6c7 c8c9 cacb cccd cecf ................\n"
96 + "000001d0: d0d1 d2d3 d4d5 d6d7 d8d9 dadb dcdd dedf ................\n"
97 + "000001e0: e0e1 e2e3 e4e5 e6e7 e8e9 eaeb eced eeef ................\n"
98 + "000001f0: f0f1 f2f3 f4f5 f6f7 f8f9 fafb fcfd feff ................\n", HexDump.dump(myArray));
99 }
100
101 public void testOffsetAndLength() throws Exception {
102 byte[] myArray = new byte[512];
103
104 for (int i = 0; i < myArray.length; ++i) {
105 myArray[i] = (byte) (i % 256);
106 }
107
108 assertEquals("35 bytes:\n" + "00000000: 4142 4344 4546 4748 494a 4b4c 4d4e 4f50 ABCDEFGHIJKLMNOP\n"
109 + "00000010: 5152 5354 5556 5758 595a 5b5c 5d5e 5f60 QRSTUVWXYZ[\\]^_`\n"
110 + "00000020: 6162 63 abc\n", HexDump.dump(myArray, 0x41, 35));
111
112 assertEquals("35 bytes:\n" + "00000000: 4142 4344 4546 4748 494a 4b4c 4d4e 4f50 ABCDEFGHIJKLMNOP\n"
113 + "00000010: 5152 5354 5556 5758 595a 5b5c 5d5e 5f60 QRSTUVWXYZ[\\]^_`\n"
114 + "00000020: 6162 63 abc\n", HexDump.dump(myArray, 0x141, 35));
115 }
116
117 public void testWriter() throws Exception {
118 StringWriter writer = new StringWriter ();
119 HexDump.dump(new byte[] { (byte) 'A', (byte) 'B', (byte) 'C' }, writer);
120 String myString = writer.toString();
121 assertEquals("3 bytes: 4142 43 ABC", myString);
122 }
123
124 public void testOffsetAndLengthWithWriter() throws Exception {
125 byte[] myArray = new byte[512];
126
127 for (int i = 0; i < myArray.length; ++i) {
128 myArray[i] = (byte) (i % 256);
129 }
130
131 StringWriter writer = new StringWriter ();
132 HexDump.dump(myArray, 0x41, 35, writer);
133 String myString = writer.toString();
134 assertEquals("35 bytes:\n" + "00000000: 4142 4344 4546 4748 494a 4b4c 4d4e 4f50 ABCDEFGHIJKLMNOP\n"
135 + "00000010: 5152 5354 5556 5758 595a 5b5c 5d5e 5f60 QRSTUVWXYZ[\\]^_`\n"
136 + "00000020: 6162 63 abc\n", myString);
137
138 writer = new StringWriter ();
139 HexDump.dump(myArray, 0x141, 35, writer);
140 myString = writer.toString();
141 assertEquals("35 bytes:\n" + "00000000: 4142 4344 4546 4748 494a 4b4c 4d4e 4f50 ABCDEFGHIJKLMNOP\n"
142 + "00000010: 5152 5354 5556 5758 595a 5b5c 5d5e 5f60 QRSTUVWXYZ[\\]^_`\n"
143 + "00000020: 6162 63 abc\n", myString);
144
145 }
146
147 }
148 |
Popular Tags |
Java API By Example, From Geeks To Geeks.