| // Copyright 2015 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 "core/fpdfapi/font/cpdf_cmapparser.h" |
| |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace { |
| |
| bool uint_ranges_equal(const uint8_t* a, const uint8_t* b, size_t count) { |
| for (size_t i = 0; i < count; ++i) { |
| if (a[i] != b[i]) |
| return false; |
| } |
| return true; |
| } |
| |
| } // namespace |
| |
| TEST(cpdf_cmapparser, GetCode) { |
| EXPECT_EQ(0u, CPDF_CMapParser::GetCode("")); |
| EXPECT_EQ(0u, CPDF_CMapParser::GetCode("<")); |
| EXPECT_EQ(194u, CPDF_CMapParser::GetCode("<c2")); |
| EXPECT_EQ(162u, CPDF_CMapParser::GetCode("<A2")); |
| EXPECT_EQ(2802u, CPDF_CMapParser::GetCode("<Af2")); |
| EXPECT_EQ(162u, CPDF_CMapParser::GetCode("<A2z")); |
| |
| EXPECT_EQ(12u, CPDF_CMapParser::GetCode("12")); |
| EXPECT_EQ(12u, CPDF_CMapParser::GetCode("12d")); |
| EXPECT_EQ(128u, CPDF_CMapParser::GetCode("128")); |
| |
| EXPECT_EQ(4294967295u, CPDF_CMapParser::GetCode("<FFFFFFFF")); |
| |
| // Overflow a uint32_t. |
| EXPECT_EQ(0u, CPDF_CMapParser::GetCode("<100000000")); |
| } |
| |
| TEST(cpdf_cmapparser, GetCodeRange) { |
| absl::optional<CPDF_CMap::CodeRange> range; |
| |
| // Must start with a < |
| range = CPDF_CMapParser::GetCodeRange("", ""); |
| EXPECT_FALSE(range.has_value()); |
| range = CPDF_CMapParser::GetCodeRange("A", ""); |
| EXPECT_FALSE(range.has_value()); |
| |
| // m_CharSize must be <= 4 |
| range = CPDF_CMapParser::GetCodeRange("<aaaaaaaaaa>", ""); |
| EXPECT_FALSE(range.has_value()); |
| |
| range = CPDF_CMapParser::GetCodeRange("<12345678>", "<87654321>"); |
| ASSERT_TRUE(range.has_value()); |
| ASSERT_EQ(4u, range.value().m_CharSize); |
| { |
| constexpr uint8_t kLower[4] = {18, 52, 86, 120}; |
| constexpr uint8_t kUpper[4] = {135, 101, 67, 33}; |
| EXPECT_TRUE(uint_ranges_equal(kLower, range.value().m_Lower, 4)); |
| EXPECT_TRUE(uint_ranges_equal(kUpper, range.value().m_Upper, 4)); |
| } |
| |
| // Hex characters |
| range = CPDF_CMapParser::GetCodeRange("<a1>", "<F3>"); |
| ASSERT_TRUE(range.has_value()); |
| ASSERT_EQ(1u, range.value().m_CharSize); |
| EXPECT_EQ(161, range.value().m_Lower[0]); |
| EXPECT_EQ(243, range.value().m_Upper[0]); |
| |
| // The second string should return 0's if it is shorter |
| range = CPDF_CMapParser::GetCodeRange("<a1>", ""); |
| ASSERT_TRUE(range.has_value()); |
| ASSERT_EQ(1u, range.value().m_CharSize); |
| EXPECT_EQ(161, range.value().m_Lower[0]); |
| EXPECT_EQ(0, range.value().m_Upper[0]); |
| } |