1 // Copyright 2017 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include <cstring> 6 7 #include "fxbarcode/oned/BC_OnedCode39Writer.h" 8 #include "testing/gtest/include/gtest/gtest.h" 9 10 namespace { 11 12 // 3 wide and 6 narrow modules per char. 1 space between chars. 13 const int MODULES_PER_CHAR = 3 * 3 + 6 * 1 + 1; 14 15 // '*' is added as the first and last char. 16 const int DELIMITER_CHARS = 2; 17 18 // Last char may serve as checksum. 19 const int CHECKSUM_CHARS = 1; 20 21 TEST(OnedCode39WriterTest, SetWideNarrowRatio) { 22 // Code 39 barcodes encode strings of any size into modules in a 23 // unidimensional disposition. 24 // Each module is either: a narrow bar, a narrow space, a wide 25 // bar, or a wide space. Accepted wide-to-narrow ratios are between 2 and 3. 26 // This writer in particular only takes integer ratios, so it's either 2 or 3. 27 CBC_OnedCode39Writer writer; 28 EXPECT_FALSE(writer.SetWideNarrowRatio(0)); 29 EXPECT_FALSE(writer.SetWideNarrowRatio(1)); 30 EXPECT_TRUE(writer.SetWideNarrowRatio(2)); 31 EXPECT_TRUE(writer.SetWideNarrowRatio(3)); 32 EXPECT_FALSE(writer.SetWideNarrowRatio(4)); 33 EXPECT_FALSE(writer.SetWideNarrowRatio(100)); 34 35 writer.SetWideNarrowRatio(3); 36 37 int32_t width; 38 int32_t height; 39 uint8_t* encoded; 40 const char* expected; 41 42 encoded = writer.Encode("PDFIUM", BCFORMAT_CODE_39, width, height); 43 expected = 44 "# # ### ### # " // * Start 45 "# ### ### # # " // P 46 "# # ### # ### " // D 47 "# ### ### # # " // F 48 "# ### # ### # " // I 49 "### # # # ### " // U 50 "### ### # # # " // M 51 "# # ### ### #"; // * End 52 FX_Free(encoded); 53 54 writer.SetWideNarrowRatio(2); 55 56 encoded = writer.Encode("PDFIUM", BCFORMAT_CODE_39, width, height); 57 expected = 58 "# # ## ## # " // * Start 59 "# ## ## # # " // P 60 "# # ## # ## " // D 61 "# ## ## # # " // F 62 "# ## # ## # " // I 63 "## # # # ## " // U 64 "## ## # # # " // M 65 "# # ## ## #"; // * End 66 FX_Free(encoded); 67 } 68 69 TEST(OnedCode39WriterTest, Encode) { 70 CBC_OnedCode39Writer writer; 71 int32_t width; 72 int32_t height; 73 uint8_t* encoded; 74 const char* expected; 75 76 encoded = writer.Encode("", BCFORMAT_CODE_39, width, height); 77 EXPECT_EQ(1, height); 78 EXPECT_EQ((0 + DELIMITER_CHARS) * MODULES_PER_CHAR - 1, width); 79 expected = 80 "# # ### ### # " // * Start 81 "# # ### ### #"; // * End 82 for (size_t i = 0; i < strlen(expected); i++) { 83 EXPECT_EQ(expected[i] != ' ', !!encoded[i]) << i; 84 } 85 FX_Free(encoded); 86 87 encoded = writer.Encode("123", BCFORMAT_CODE_39, width, height); 88 EXPECT_EQ(1, height); 89 EXPECT_EQ((3 + DELIMITER_CHARS) * MODULES_PER_CHAR - 1, width); 90 expected = 91 "# # ### ### # " // * Start 92 "### # # # ### " // 1 93 "# ### # # ### " // 2 94 "### ### # # # " // 3 95 "# # ### ### #"; // * End 96 for (size_t i = 0; i < strlen(expected); i++) { 97 EXPECT_EQ(expected[i] != ' ', !!encoded[i]) << i; 98 } 99 FX_Free(encoded); 100 101 encoded = writer.Encode("PDFIUM", BCFORMAT_CODE_39, width, height); 102 EXPECT_EQ(1, height); 103 EXPECT_EQ((6 + DELIMITER_CHARS) * MODULES_PER_CHAR - 1, width); 104 expected = 105 "# # ### ### # " // * Start 106 "# ### ### # # " // P 107 "# # ### # ### " // D 108 "# ### ### # # " // F 109 "# ### # ### # " // I 110 "### # # # ### " // U 111 "### ### # # # " // M 112 "# # ### ### #"; // * End 113 for (size_t i = 0; i < strlen(expected); i++) { 114 EXPECT_EQ(expected[i] != ' ', !!encoded[i]) << i; 115 } 116 FX_Free(encoded); 117 118 encoded = writer.Encode("A -$%./+Z", BCFORMAT_CODE_39, width, height); 119 EXPECT_EQ(1, height); 120 EXPECT_EQ((9 + DELIMITER_CHARS) * MODULES_PER_CHAR - 1, width); 121 expected = 122 "# # ### ### # " // * Start 123 "### # # # ### " // A 124 "# ### # ### # " // Space 125 "# # # ### ### " // - 126 "# # # # # " // $ 127 "# # # # # " // % 128 "### # # ### # " // . 129 "# # # # # " // / 130 "# # # # # " // + 131 "# ### ### # # " // Z 132 "# # ### ### #"; // * End 133 for (size_t i = 0; i < strlen(expected); i++) { 134 EXPECT_EQ(expected[i] != ' ', !!encoded[i]) << i; 135 } 136 FX_Free(encoded); 137 } 138 139 TEST(OnedCode39WriterTest, Checksum) { 140 CBC_OnedCode39Writer writer; 141 int32_t width; 142 int32_t height; 143 uint8_t* encoded; 144 const char* expected; 145 146 writer.SetCalcChecksum(true); 147 148 encoded = writer.Encode("123", BCFORMAT_CODE_39, width, height); 149 EXPECT_EQ(1, height); 150 EXPECT_EQ((3 + CHECKSUM_CHARS + DELIMITER_CHARS) * MODULES_PER_CHAR - 1, 151 width); 152 expected = 153 "# # ### ### # " // * Start 154 "### # # # ### " // 1 (1) 155 "# ### # # ### " // 2 (2) 156 "### ### # # # " // 3 (3) 157 "# ### ### # # " // 6 (6 = (1 + 2 + 3) % 43) 158 "# # ### ### #"; // * End 159 for (size_t i = 0; i < strlen(expected); i++) { 160 EXPECT_EQ(expected[i] != ' ', !!encoded[i]) << i; 161 } 162 FX_Free(encoded); 163 164 encoded = writer.Encode("PDFIUM", BCFORMAT_CODE_39, width, height); 165 EXPECT_EQ(1, height); 166 EXPECT_EQ((6 + CHECKSUM_CHARS + DELIMITER_CHARS) * MODULES_PER_CHAR - 1, 167 width); 168 expected = 169 "# # ### ### # " // * Start 170 "# ### ### # # " // P (25) 171 "# # ### # ### " // D (13) 172 "# ### ### # # " // F (15) 173 "# ### # ### # " // I (18) 174 "### # # # ### " // U (30) 175 "### ### # # # " // M (22) 176 "### # # ### # " // . (37 = (25 + 13 + 15 + 18 + 30 + 22) % 43) 177 "# # ### ### #"; // * End 178 for (size_t i = 0; i < strlen(expected); i++) { 179 EXPECT_EQ(expected[i] != ' ', !!encoded[i]) << i; 180 } 181 FX_Free(encoded); 182 } 183 184 } // namespace 185
