1 // Tags: JDK1.4 |
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2 |
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3 // Copyright (C) 2006 Red Hat |
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4 |
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5 // This file is part of Mauve. |
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6 |
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7 // Mauve is free software; you can redistribute it and/or modify |
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8 // it under the terms of the GNU General Public License as published by |
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9 // the Free Software Foundation; either version 2, or (at your option) |
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10 // any later version. |
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11 |
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12 // Mauve is distributed in the hope that it will be useful, |
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13 // but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 // GNU General Public License for more details. |
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16 |
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17 // You should have received a copy of the GNU General Public License |
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18 // along with Mauve; see the file COPYING. If not, write to |
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19 // the Free Software Foundation, 59 Temple Place - Suite 330, |
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20 // Boston, MA 02111-1307, USA. |
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21 |
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22 package gnu.testlet.javax.imageio.plugins.jpeg; |
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23 |
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24 import gnu.testlet.Testlet; |
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25 import gnu.testlet.TestHarness; |
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26 |
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27 import java.util.Arrays; |
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28 import javax.imageio.plugins.jpeg.JPEGHuffmanTable; |
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29 |
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30 /** |
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31 * Test JPEGHuffmanTable construction and static fields. |
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32 */ |
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33 public class TestJPEGHuffmanTable implements Testlet |
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34 { |
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35 public void test(TestHarness h) |
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36 { |
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37 JPEGHuffmanTable t = null; |
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38 boolean constructionFailed = false; |
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39 |
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40 // Some valid data for construction testing. |
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41 short[] ACChrominanceLengths = |
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42 { |
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43 0, 2, 1, 2, 4, 4, 3, 4, 7, 5, 4, 4, 0, 1, 2, 0x77 |
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44 }; |
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45 |
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46 short[] ACChrominanceValues = |
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47 { |
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48 0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21, 0x31, 0x06, |
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49 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, 0x13, 0x22, 0x32, 0x81, |
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50 0x08, 0x14, 0x42, 0x91, 0xa1, 0xb1, 0xc1, 0x09, 0x23, 0x33, |
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51 0x52, 0xf0, 0x15, 0x62, 0x72, 0xd1, 0x0a, 0x16, 0x24, 0x34, |
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52 0xe1, 0x25, 0xf1, 0x17, 0x18, 0x19, 0x1a, 0x26, 0x27, 0x28, |
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53 0x29, 0x2a, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x43, 0x44, |
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54 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x53, 0x54, 0x55, 0x56, |
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55 0x57, 0x58, 0x59, 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, |
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56 0x69, 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, |
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57 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x92, |
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58 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0xa2, 0xa3, |
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59 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, |
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60 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5, |
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61 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, |
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62 0xd7, 0xd8, 0xd9, 0xda, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, |
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63 0xe8, 0xe9, 0xea, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, |
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64 0xf9, 0xfa |
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65 }; |
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66 |
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67 short[] ACLuminanceLengths = |
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68 { |
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69 0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 0x7d |
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70 }; |
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71 |
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72 short[] ACLuminanceValues = |
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73 { |
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74 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21, 0x31, |
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75 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, 0x22, 0x71, 0x14, 0x32, |
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76 0x81, 0x91, 0xa1, 0x08, 0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52, |
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77 0xd1, 0xf0, 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a, 0x16, |
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78 0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, |
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79 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x43, 0x44, 0x45, |
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80 0x46, 0x47, 0x48, 0x49, 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, |
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81 0x58, 0x59, 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, |
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82 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x83, |
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83 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x92, 0x93, 0x94, |
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84 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, |
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85 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, |
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86 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, |
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87 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, |
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88 0xd9, 0xda, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, |
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89 0xe9, 0xea, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, |
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90 0xf9, 0xfa |
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91 }; |
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92 |
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93 short[] DCChrominanceLengths = |
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94 { |
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95 0, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 |
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96 }; |
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97 |
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98 short[] DCChrominanceValues = |
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99 { |
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100 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 |
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101 }; |
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102 |
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103 short[] DCLuminanceLengths = |
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104 { |
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105 0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0 |
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106 }; |
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107 |
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108 short[] DCLuminanceValues = |
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109 { |
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110 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 |
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111 }; |
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112 |
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113 // Test that it is impossible to construct an invalid Huffman table. |
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114 // Both arguments are null. |
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115 try |
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116 { |
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117 t = new JPEGHuffmanTable(null, null); |
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118 } |
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119 catch (IllegalArgumentException e) |
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120 { |
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121 constructionFailed = true; |
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122 } |
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123 h.check(constructionFailed); |
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124 |
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125 // values argument is null. |
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126 constructionFailed = false; |
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127 try |
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128 { |
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129 t = new JPEGHuffmanTable(ACLuminanceLengths, null); |
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130 } |
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131 catch (IllegalArgumentException e) |
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132 { |
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133 constructionFailed = true; |
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134 } |
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135 h.check(constructionFailed); |
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136 |
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137 // lengths argument is null. |
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138 constructionFailed = false; |
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139 try |
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140 { |
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141 t = new JPEGHuffmanTable(null, ACLuminanceValues); |
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142 } |
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143 catch (IllegalArgumentException e) |
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144 { |
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145 constructionFailed = true; |
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146 } |
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147 h.check(constructionFailed); |
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148 |
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149 // lengths argument has length > 16. |
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150 short[] boguslengths = { 0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, |
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151 0x7d, 5 }; |
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152 |
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153 constructionFailed = false; |
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154 try |
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155 { |
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156 t = new JPEGHuffmanTable(boguslengths, ACLuminanceValues); |
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157 } |
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158 catch (IllegalArgumentException e) |
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159 { |
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160 constructionFailed = true; |
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161 } |
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162 h.check(constructionFailed); |
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163 |
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164 // values argument has length > 256. |
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165 short[] bogusvalues = new short[257]; |
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166 System.arraycopy(ACLuminanceValues, 0, bogusvalues, 0, 128); |
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167 System.arraycopy(ACLuminanceValues, 0, bogusvalues, 128, 128); |
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168 bogusvalues[256] = 0x4a; |
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169 |
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170 constructionFailed = false; |
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171 try |
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172 { |
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173 t = new JPEGHuffmanTable(ACLuminanceLengths, bogusvalues); |
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174 } |
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175 catch (IllegalArgumentException e) |
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176 { |
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177 constructionFailed = true; |
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178 } |
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179 h.check(constructionFailed); |
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180 |
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181 // check bogus length value |
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182 ACLuminanceLengths[3] = 16; |
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183 constructionFailed = false; |
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184 try |
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185 { |
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186 t = new JPEGHuffmanTable(ACLuminanceLengths, ACLuminanceValues); |
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187 } |
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188 catch (IllegalArgumentException e) |
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189 { |
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190 constructionFailed = true; |
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191 } |
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192 h.check(constructionFailed); |
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193 // restore original value |
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194 ACLuminanceLengths[3] = 3; |
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195 |
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196 // check bogus length total |
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197 ACLuminanceLengths[9] = 6; |
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198 constructionFailed = false; |
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199 try |
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200 { |
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201 t = new JPEGHuffmanTable(ACLuminanceLengths, ACLuminanceValues); |
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202 } |
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203 catch (IllegalArgumentException e) |
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204 { |
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205 constructionFailed = true; |
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206 } |
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207 h.check(constructionFailed); |
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208 // restore original value |
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209 ACLuminanceLengths[9] = 5; |
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210 |
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211 // check bogus number of values |
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212 short[] valueslessone = new short[ACLuminanceValues.length - 1]; |
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213 System.arraycopy(ACLuminanceValues, 0, valueslessone, 0, |
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214 ACLuminanceValues.length - 1); |
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215 constructionFailed = false; |
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216 try |
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217 { |
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218 t = new JPEGHuffmanTable(ACLuminanceLengths, valueslessone); |
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219 } |
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220 catch (IllegalArgumentException e) |
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221 { |
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222 constructionFailed = true; |
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223 } |
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224 h.check(constructionFailed); |
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225 |
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226 // check StdACChrominance |
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227 short[] lengths = JPEGHuffmanTable.StdACChrominance.getLengths(); |
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228 h.check (Arrays.equals(lengths, ACChrominanceLengths)); |
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229 |
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230 short[] values = JPEGHuffmanTable.StdACChrominance.getValues(); |
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231 h.check (Arrays.equals(values, ACChrominanceValues)); |
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232 |
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233 // check StdACLuminance |
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234 lengths = JPEGHuffmanTable.StdACLuminance.getLengths(); |
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235 h.check(Arrays.equals(lengths, ACLuminanceLengths)); |
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236 |
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237 values = JPEGHuffmanTable.StdACLuminance.getValues(); |
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238 h.check(Arrays.equals(values, ACLuminanceValues)); |
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239 |
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240 // check StdDCChrominance |
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241 lengths = JPEGHuffmanTable.StdDCChrominance.getLengths(); |
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242 h.check (Arrays.equals(lengths, DCChrominanceLengths)); |
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243 |
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244 values = JPEGHuffmanTable.StdDCChrominance.getValues(); |
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245 h.check (Arrays.equals(values, DCChrominanceValues)); |
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246 |
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247 // check StdDCLuminance |
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248 lengths = JPEGHuffmanTable.StdDCLuminance.getLengths(); |
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249 h.check(Arrays.equals(lengths, DCLuminanceLengths)); |
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250 |
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251 values = JPEGHuffmanTable.StdDCLuminance.getValues(); |
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252 h.check(Arrays.equals(values, DCLuminanceValues)); |
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253 } |
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254 } |
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