1 // Copyright 2015 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 "core/fpdfapi/font/font_int.h"
6 #include "testing/gtest/include/gtest/gtest.h"
7
8 namespace {
9
uint_ranges_equal(uint8_t * a,uint8_t * b,size_t count)10 bool uint_ranges_equal(uint8_t* a, uint8_t* b, size_t count) {
11 for (size_t i = 0; i < count; ++i) {
12 if (a[i] != b[i])
13 return false;
14 }
15 return true;
16 }
17
18 } // namespace
19
TEST(fpdf_font_cid,CMap_GetCode)20 TEST(fpdf_font_cid, CMap_GetCode) {
21 EXPECT_EQ(0u, CPDF_CMapParser::CMap_GetCode(""));
22 EXPECT_EQ(0u, CPDF_CMapParser::CMap_GetCode("<"));
23 EXPECT_EQ(194u, CPDF_CMapParser::CMap_GetCode("<c2"));
24 EXPECT_EQ(162u, CPDF_CMapParser::CMap_GetCode("<A2"));
25 EXPECT_EQ(2802u, CPDF_CMapParser::CMap_GetCode("<Af2"));
26 EXPECT_EQ(162u, CPDF_CMapParser::CMap_GetCode("<A2z"));
27
28 EXPECT_EQ(12u, CPDF_CMapParser::CMap_GetCode("12"));
29 EXPECT_EQ(12u, CPDF_CMapParser::CMap_GetCode("12d"));
30 EXPECT_EQ(128u, CPDF_CMapParser::CMap_GetCode("128"));
31
32 EXPECT_EQ(4294967295u, CPDF_CMapParser::CMap_GetCode("<FFFFFFFF"));
33
34 // Overflow a uint32_t.
35 EXPECT_EQ(0u, CPDF_CMapParser::CMap_GetCode("<100000000"));
36 }
37
TEST(fpdf_font_cid,CMap_GetCodeRange)38 TEST(fpdf_font_cid, CMap_GetCodeRange) {
39 CMap_CodeRange range;
40
41 // Must start with a <
42 EXPECT_FALSE(CPDF_CMapParser::CMap_GetCodeRange(range, "", ""));
43 EXPECT_FALSE(CPDF_CMapParser::CMap_GetCodeRange(range, "A", ""));
44
45 // m_CharSize must be <= 4
46 EXPECT_FALSE(CPDF_CMapParser::CMap_GetCodeRange(range, "<aaaaaaaaaa>", ""));
47 EXPECT_EQ(5, range.m_CharSize);
48
49 EXPECT_TRUE(
50 CPDF_CMapParser::CMap_GetCodeRange(range, "<12345678>", "<87654321>"));
51 EXPECT_EQ(4, range.m_CharSize);
52 {
53 uint8_t lower[4] = {18, 52, 86, 120};
54 uint8_t upper[4] = {135, 101, 67, 33};
55 EXPECT_TRUE(uint_ranges_equal(lower, range.m_Lower, range.m_CharSize));
56 EXPECT_TRUE(uint_ranges_equal(upper, range.m_Upper, range.m_CharSize));
57 }
58
59 // Hex characters
60 EXPECT_TRUE(CPDF_CMapParser::CMap_GetCodeRange(range, "<a1>", "<F3>"));
61 EXPECT_EQ(1, range.m_CharSize);
62 EXPECT_EQ(161, range.m_Lower[0]);
63 EXPECT_EQ(243, range.m_Upper[0]);
64
65 // The second string should return 0's if it is shorter
66 EXPECT_TRUE(CPDF_CMapParser::CMap_GetCodeRange(range, "<a1>", ""));
67 EXPECT_EQ(1, range.m_CharSize);
68 EXPECT_EQ(161, range.m_Lower[0]);
69 EXPECT_EQ(0, range.m_Upper[0]);
70 }
71