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// 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(uint8_t* a, 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) {
CPDF_CMapParser parser(nullptr);
EXPECT_EQ(0u, parser.GetCode(""));
EXPECT_EQ(0u, parser.GetCode("<"));
EXPECT_EQ(194u, parser.GetCode("<c2"));
EXPECT_EQ(162u, parser.GetCode("<A2"));
EXPECT_EQ(2802u, parser.GetCode("<Af2"));
EXPECT_EQ(162u, parser.GetCode("<A2z"));
EXPECT_EQ(12u, parser.GetCode("12"));
EXPECT_EQ(12u, parser.GetCode("12d"));
EXPECT_EQ(128u, parser.GetCode("128"));
EXPECT_EQ(4294967295u, parser.GetCode("<FFFFFFFF"));
// Overflow a uint32_t.
EXPECT_EQ(0u, parser.GetCode("<100000000"));
}
TEST(cpdf_cmapparser, GetCodeRange) {
CPDF_CMapParser parser(nullptr);
CPDF_CMap::CodeRange range;
// Must start with a <
EXPECT_FALSE(parser.GetCodeRange(range, "", ""));
EXPECT_FALSE(parser.GetCodeRange(range, "A", ""));
// m_CharSize must be <= 4
EXPECT_FALSE(parser.GetCodeRange(range, "<aaaaaaaaaa>", ""));
EXPECT_EQ(5u, range.m_CharSize);
EXPECT_TRUE(parser.GetCodeRange(range, "<12345678>", "<87654321>"));
EXPECT_EQ(4u, range.m_CharSize);
{
uint8_t lower[4] = {18, 52, 86, 120};
uint8_t upper[4] = {135, 101, 67, 33};
EXPECT_TRUE(uint_ranges_equal(lower, range.m_Lower, range.m_CharSize));
EXPECT_TRUE(uint_ranges_equal(upper, range.m_Upper, range.m_CharSize));
}
// Hex characters
EXPECT_TRUE(parser.GetCodeRange(range, "<a1>", "<F3>"));
EXPECT_EQ(1u, range.m_CharSize);
EXPECT_EQ(161, range.m_Lower[0]);
EXPECT_EQ(243, range.m_Upper[0]);
// The second string should return 0's if it is shorter
EXPECT_TRUE(parser.GetCodeRange(range, "<a1>", ""));
EXPECT_EQ(1u, range.m_CharSize);
EXPECT_EQ(161, range.m_Lower[0]);
EXPECT_EQ(0, range.m_Upper[0]);
}
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