| // Copyright 2017 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "fxbarcode/oned/BC_OnedCode39Writer.h" |
| |
| #include <string.h> |
| |
| #include "core/fxcrt/fx_memory.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace { |
| |
| // 3 wide and 6 narrow modules per char. 1 space between chars. |
| constexpr int MODULES_PER_CHAR = 3 * 3 + 6 + 1; |
| |
| // '*' is added as the first and last char. |
| const int DELIMITER_CHARS = 2; |
| |
| // Last char may serve as checksum. |
| const int CHECKSUM_CHARS = 1; |
| |
| TEST(OnedCode39WriterTest, SetWideNarrowRatio) { |
| // Code 39 barcodes encode strings of any size into modules in a |
| // unidimensional disposition. |
| // Each module is either: a narrow bar, a narrow space, a wide |
| // bar, or a wide space. Accepted wide-to-narrow ratios are between 2 and 3. |
| // This writer in particular only takes integer ratios, so it's either 2 or 3. |
| CBC_OnedCode39Writer writer; |
| EXPECT_FALSE(writer.SetWideNarrowRatio(0)); |
| EXPECT_FALSE(writer.SetWideNarrowRatio(1)); |
| EXPECT_TRUE(writer.SetWideNarrowRatio(2)); |
| EXPECT_TRUE(writer.SetWideNarrowRatio(3)); |
| EXPECT_FALSE(writer.SetWideNarrowRatio(4)); |
| EXPECT_FALSE(writer.SetWideNarrowRatio(100)); |
| |
| writer.SetWideNarrowRatio(3); |
| |
| int32_t width; |
| int32_t height; |
| uint8_t* encoded; |
| const char* expected; |
| |
| encoded = writer.Encode("PDFIUM", BC_TYPE::kCode39, width, height); |
| expected = |
| "# # ### ### # " // * Start |
| "# ### ### # # " // P |
| "# # ### # ### " // D |
| "# ### ### # # " // F |
| "# ### # ### # " // I |
| "### # # # ### " // U |
| "### ### # # # " // M |
| "# # ### ### #"; // * End |
| for (size_t i = 0; i < strlen(expected); i++) |
| EXPECT_EQ(expected[i] != ' ', !!encoded[i]) << i; |
| FX_Free(encoded); |
| |
| writer.SetWideNarrowRatio(2); |
| |
| encoded = writer.Encode("PDFIUM", BC_TYPE::kCode39, width, height); |
| expected = |
| "# # ## ## # " // * Start |
| "# ## ## # # " // P |
| "# # ## # ## " // D |
| "# ## ## # # " // F |
| "# ## # ## # " // I |
| "## # # # ## " // U |
| "## ## # # # " // M |
| "# # ## ## #"; // * End |
| for (size_t i = 0; i < strlen(expected); i++) |
| EXPECT_EQ(expected[i] != ' ', !!encoded[i]) << i; |
| FX_Free(encoded); |
| } |
| |
| TEST(OnedCode39WriterTest, Encode) { |
| CBC_OnedCode39Writer writer; |
| int32_t width; |
| int32_t height; |
| uint8_t* encoded; |
| const char* expected; |
| |
| encoded = writer.Encode("", BC_TYPE::kCode39, width, height); |
| EXPECT_EQ(1, height); |
| EXPECT_EQ((0 + DELIMITER_CHARS) * MODULES_PER_CHAR - 1, width); |
| expected = |
| "# # ### ### # " // * Start |
| "# # ### ### #"; // * End |
| for (size_t i = 0; i < strlen(expected); i++) |
| EXPECT_EQ(expected[i] != ' ', !!encoded[i]) << i; |
| FX_Free(encoded); |
| |
| encoded = writer.Encode("123", BC_TYPE::kCode39, width, height); |
| EXPECT_EQ(1, height); |
| EXPECT_EQ((3 + DELIMITER_CHARS) * MODULES_PER_CHAR - 1, width); |
| expected = |
| "# # ### ### # " // * Start |
| "### # # # ### " // 1 |
| "# ### # # ### " // 2 |
| "### ### # # # " // 3 |
| "# # ### ### #"; // * End |
| for (size_t i = 0; i < strlen(expected); i++) |
| EXPECT_EQ(expected[i] != ' ', !!encoded[i]) << i; |
| FX_Free(encoded); |
| |
| encoded = writer.Encode("PDFIUM", BC_TYPE::kCode39, width, height); |
| EXPECT_EQ(1, height); |
| EXPECT_EQ((6 + DELIMITER_CHARS) * MODULES_PER_CHAR - 1, width); |
| expected = |
| "# # ### ### # " // * Start |
| "# ### ### # # " // P |
| "# # ### # ### " // D |
| "# ### ### # # " // F |
| "# ### # ### # " // I |
| "### # # # ### " // U |
| "### ### # # # " // M |
| "# # ### ### #"; // * End |
| for (size_t i = 0; i < strlen(expected); i++) |
| EXPECT_EQ(expected[i] != ' ', !!encoded[i]) << i; |
| FX_Free(encoded); |
| |
| encoded = writer.Encode("A -$%./+Z", BC_TYPE::kCode39, width, height); |
| EXPECT_EQ(1, height); |
| EXPECT_EQ((9 + DELIMITER_CHARS) * MODULES_PER_CHAR - 1, width); |
| expected = |
| "# # ### ### # " // * Start |
| "### # # # ### " // A |
| "# ### # ### # " // Space |
| "# # # ### ### " // - |
| "# # # # # " // $ |
| "# # # # # " // % |
| "### # # ### # " // . |
| "# # # # # " // / |
| "# # # # # " // + |
| "# ### ### # # " // Z |
| "# # ### ### #"; // * End |
| for (size_t i = 0; i < strlen(expected); i++) |
| EXPECT_EQ(expected[i] != ' ', !!encoded[i]) << i; |
| FX_Free(encoded); |
| } |
| |
| TEST(OnedCode39WriterTest, Checksum) { |
| CBC_OnedCode39Writer writer; |
| int32_t width; |
| int32_t height; |
| uint8_t* encoded; |
| const char* expected; |
| |
| writer.SetCalcChecksum(true); |
| |
| encoded = writer.Encode("123", BC_TYPE::kCode39, width, height); |
| EXPECT_EQ(1, height); |
| EXPECT_EQ((3 + CHECKSUM_CHARS + DELIMITER_CHARS) * MODULES_PER_CHAR - 1, |
| width); |
| expected = |
| "# # ### ### # " // * Start |
| "### # # # ### " // 1 (1) |
| "# ### # # ### " // 2 (2) |
| "### ### # # # " // 3 (3) |
| "# ### ### # # " // 6 (6 = (1 + 2 + 3) % 43) |
| "# # ### ### #"; // * End |
| for (size_t i = 0; i < strlen(expected); i++) |
| EXPECT_EQ(expected[i] != ' ', !!encoded[i]) << i; |
| FX_Free(encoded); |
| |
| encoded = writer.Encode("PDFIUM", BC_TYPE::kCode39, width, height); |
| EXPECT_EQ(1, height); |
| EXPECT_EQ((6 + CHECKSUM_CHARS + DELIMITER_CHARS) * MODULES_PER_CHAR - 1, |
| width); |
| expected = |
| "# # ### ### # " // * Start |
| "# ### ### # # " // P (25) |
| "# # ### # ### " // D (13) |
| "# ### ### # # " // F (15) |
| "# ### # ### # " // I (18) |
| "### # # # ### " // U (30) |
| "### ### # # # " // M (22) |
| "### # # ### # " // . (37 = (25 + 13 + 15 + 18 + 30 + 22) % 43) |
| "# # ### ### #"; // * End |
| for (size_t i = 0; i < strlen(expected); i++) |
| EXPECT_EQ(expected[i] != ' ', !!encoded[i]) << i; |
| FX_Free(encoded); |
| } |
| |
| } // namespace |