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BC_OnedCode39Writer_unittest.cpp
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1// Copyright 2017 The PDFium Authors
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 "fxbarcode/oned/BC_OnedCode39Writer.h"
6
7#include <string.h>
8
9#include "core/fxcrt/data_vector.h"
10#include "testing/gtest/include/gtest/gtest.h"
11
12namespace {
13
14TEST(OnedCode39WriterTest, SetWideNarrowRatio) {
15 // Code 39 barcodes encode strings of any size into modules in a
16 // unidimensional disposition.
17 // Each module is either: a narrow bar, a narrow space, a wide
18 // bar, or a wide space. Accepted wide-to-narrow ratios are between 2 and 3.
19 // This writer in particular only takes integer ratios, so it's either 2 or 3.
20 CBC_OnedCode39Writer writer;
21 EXPECT_FALSE(writer.SetWideNarrowRatio(0));
22 EXPECT_FALSE(writer.SetWideNarrowRatio(1));
23 EXPECT_TRUE(writer.SetWideNarrowRatio(2));
24 EXPECT_TRUE(writer.SetWideNarrowRatio(3));
25 EXPECT_FALSE(writer.SetWideNarrowRatio(4));
26 EXPECT_FALSE(writer.SetWideNarrowRatio(100));
27
28 writer.SetWideNarrowRatio(3);
29
30 static const char kExpected1[] =
31 "# # ### ### # " // * Start
32 "# ### ### # # " // P
33 "# # ### # ### " // D
34 "# ### ### # # " // F
35 "# ### # ### # " // I
36 "### # # # ### " // U
37 "### ### # # # " // M
38 "# # ### ### #"; // * End
39 DataVector<uint8_t> encoded = writer.Encode("PDFIUM");
40 ASSERT_EQ(strlen(kExpected1), encoded.size());
41 for (size_t i = 0; i < strlen(kExpected1); i++)
42 EXPECT_EQ(kExpected1[i] != ' ', !!encoded[i]) << i;
43
44 writer.SetWideNarrowRatio(2);
45
46 static const char kExpected2[] =
47 "# # ## ## # " // * Start
48 "# ## ## # # " // P
49 "# # ## # ## " // D
50 "# ## ## # # " // F
51 "# ## # ## # " // I
52 "## # # # ## " // U
53 "## ## # # # " // M
54 "# # ## ## #"; // * End
55 encoded = writer.Encode("PDFIUM");
56 ASSERT_EQ(strlen(kExpected2), encoded.size());
57 for (size_t i = 0; i < strlen(kExpected2); i++)
58 EXPECT_EQ(kExpected2[i] != ' ', !!encoded[i]) << i;
59}
60
61TEST(OnedCode39WriterTest, Encode) {
62 CBC_OnedCode39Writer writer;
63
64 static const char kExpected1[] =
65 "# # ### ### # " // * Start
66 "# # ### ### #"; // * End
67 DataVector<uint8_t> encoded = writer.Encode("");
68 ASSERT_EQ(strlen(kExpected1), encoded.size());
69 for (size_t i = 0; i < strlen(kExpected1); i++)
70 EXPECT_EQ(kExpected1[i] != ' ', !!encoded[i]) << i;
71
72 static const char kExpected2[] =
73 "# # ### ### # " // * Start
74 "### # # # ### " // 1
75 "# ### # # ### " // 2
76 "### ### # # # " // 3
77 "# # ### ### #"; // * End
78 encoded = writer.Encode("123");
79 ASSERT_EQ(strlen(kExpected2), encoded.size());
80 for (size_t i = 0; i < strlen(kExpected2); i++)
81 EXPECT_EQ(kExpected2[i] != ' ', !!encoded[i]) << i;
82
83 static const char kExpected3[] =
84 "# # ### ### # " // * Start
85 "# ### ### # # " // P
86 "# # ### # ### " // D
87 "# ### ### # # " // F
88 "# ### # ### # " // I
89 "### # # # ### " // U
90 "### ### # # # " // M
91 "# # ### ### #"; // * End
92 encoded = writer.Encode("PDFIUM");
93 ASSERT_EQ(strlen(kExpected3), encoded.size());
94 for (size_t i = 0; i < strlen(kExpected3); i++)
95 EXPECT_EQ(kExpected3[i] != ' ', !!encoded[i]) << i;
96
97 static const char kExpected4[] =
98 "# # ### ### # " // * Start
99 "### # # # ### " // A
100 "# ### # ### # " // Space
101 "# # # ### ### " // -
102 "# # # # # " // $
103 "# # # # # " // %
104 "### # # ### # " // .
105 "# # # # # " // /
106 "# # # # # " // +
107 "# ### ### # # " // Z
108 "# # ### ### #"; // * End
109 encoded = writer.Encode("A -$%./+Z");
110 ASSERT_EQ(strlen(kExpected4), encoded.size());
111 for (size_t i = 0; i < strlen(kExpected4); i++)
112 EXPECT_EQ(kExpected4[i] != ' ', !!encoded[i]) << i;
113}
114
115TEST(OnedCode39WriterTest, Checksum) {
116 CBC_OnedCode39Writer writer;
117 writer.SetCalcChecksum(true);
118
119 static const char kExpected1[] =
120 "# # ### ### # " // * Start
121 "### # # # ### " // 1 (1)
122 "# ### # # ### " // 2 (2)
123 "### ### # # # " // 3 (3)
124 "# ### ### # # " // 6 (6 = (1 + 2 + 3) % 43)
125 "# # ### ### #"; // * End
126 DataVector<uint8_t> encoded = writer.Encode("123");
127 ASSERT_EQ(strlen(kExpected1), encoded.size());
128 for (size_t i = 0; i < strlen(kExpected1); i++)
129 EXPECT_EQ(kExpected1[i] != ' ', !!encoded[i]) << i;
130
131 static const char kExpected2[] =
132 "# # ### ### # " // * Start
133 "# ### ### # # " // P (25)
134 "# # ### # ### " // D (13)
135 "# ### ### # # " // F (15)
136 "# ### # ### # " // I (18)
137 "### # # # ### " // U (30)
138 "### ### # # # " // M (22)
139 "### # # ### # " // . (37 = (25 + 13 + 15 + 18 + 30 + 22) % 43)
140 "# # ### ### #"; // * End
141 encoded = writer.Encode("PDFIUM");
142 ASSERT_EQ(strlen(kExpected2), encoded.size());
143 for (size_t i = 0; i < strlen(kExpected2); i++)
144 EXPECT_EQ(kExpected2[i] != ' ', !!encoded[i]) << i;
145}
146
147} // namespace
CBC_OneDimWriter::SetCalcChecksum
void SetCalcChecksum(bool state)
Definition BC_OneDimWriter.cpp:64
CBC_OnedCode39Writer::SetWideNarrowRatio
bool SetWideNarrowRatio(int8_t ratio) override
Definition BC_OnedCode39Writer.cpp:134