TEST(cpdf_syntax_parser, ReadHexString) {
{
// Empty string.
uint8_t data[] = "";
ScopedFileStream stream(FX_CreateMemoryStream(data, 0, FALSE));
CPDF_SyntaxParser parser;
parser.InitParser(stream.get(), 0);
EXPECT_EQ("", parser.ReadHexString());
EXPECT_EQ(0, parser.SavePos());
}
{
// Blank string.
uint8_t data[] = " ";
ScopedFileStream stream(FX_CreateMemoryStream(data, 2, FALSE));
CPDF_SyntaxParser parser;
parser.InitParser(stream.get(), 0);
EXPECT_EQ("", parser.ReadHexString());
EXPECT_EQ(2, parser.SavePos());
}
{
// Skips unknown characters.
uint8_t data[] = "z12b";
ScopedFileStream stream(FX_CreateMemoryStream(data, 4, FALSE));
CPDF_SyntaxParser parser;
parser.InitParser(stream.get(), 0);
EXPECT_EQ("\x12\xb0", parser.ReadHexString());
EXPECT_EQ(4, parser.SavePos());
}
{
// Skips unknown characters.
uint8_t data[] = "*<&*#$^&@1";
ScopedFileStream stream(FX_CreateMemoryStream(data, 10, FALSE));
CPDF_SyntaxParser parser;
parser.InitParser(stream.get(), 0);
EXPECT_EQ("\x10", parser.ReadHexString());
EXPECT_EQ(10, parser.SavePos());
}
{
// Skips unknown characters.
uint8_t data[] = "\x80zab";
ScopedFileStream stream(FX_CreateMemoryStream(data, 4, FALSE));
CPDF_SyntaxParser parser;
parser.InitParser(stream.get(), 0);
EXPECT_EQ("\xab", parser.ReadHexString());
EXPECT_EQ(4, parser.SavePos());
}
{
// Skips unknown characters.
uint8_t data[] = "\xffzab";
ScopedFileStream stream(FX_CreateMemoryStream(data, 4, FALSE));
CPDF_SyntaxParser parser;
parser.InitParser(stream.get(), 0);
EXPECT_EQ("\xab", parser.ReadHexString());
EXPECT_EQ(4, parser.SavePos());
}
{
// Regular conversion.
uint8_t data[] = "1A2b>abcd";
ScopedFileStream stream(FX_CreateMemoryStream(data, 9, FALSE));
CPDF_SyntaxParser parser;
parser.InitParser(stream.get(), 0);
EXPECT_EQ("\x1a\x2b", parser.ReadHexString());
EXPECT_EQ(5, parser.SavePos());
}
{
// Position out of bounds.
uint8_t data[] = "12ab>";
ScopedFileStream stream(FX_CreateMemoryStream(data, 5, FALSE));
CPDF_SyntaxParser parser;
parser.InitParser(stream.get(), 0);
parser.RestorePos(5);
EXPECT_EQ("", parser.ReadHexString());
parser.RestorePos(6);
EXPECT_EQ("", parser.ReadHexString());
parser.RestorePos(-1);
EXPECT_EQ("", parser.ReadHexString());
parser.RestorePos(std::numeric_limits<FX_FILESIZE>::max());
EXPECT_EQ("", parser.ReadHexString());
// Check string still parses when set to 0.
parser.RestorePos(0);
EXPECT_EQ("\x12\xab", parser.ReadHexString());
}
{
// Missing ending >.
uint8_t data[] = "1A2b";
ScopedFileStream stream(FX_CreateMemoryStream(data, 4, FALSE));
CPDF_SyntaxParser parser;
parser.InitParser(stream.get(), 0);
EXPECT_EQ("\x1a\x2b", parser.ReadHexString());
EXPECT_EQ(4, parser.SavePos());
}
{
// Missing ending >.
uint8_t data[] = "12abz";
ScopedFileStream stream(FX_CreateMemoryStream(data, 5, FALSE));
CPDF_SyntaxParser parser;
parser.InitParser(stream.get(), 0);
EXPECT_EQ("\x12\xab", parser.ReadHexString());
EXPECT_EQ(5, parser.SavePos());
}
{
// Uneven number of bytes.
uint8_t data[] = "1A2>asdf";
ScopedFileStream stream(FX_CreateMemoryStream(data, 8, FALSE));
CPDF_SyntaxParser parser;
parser.InitParser(stream.get(), 0);
EXPECT_EQ("\x1a\x20", parser.ReadHexString());
EXPECT_EQ(4, parser.SavePos());
}
{
// Uneven number of bytes.
uint8_t data[] = "1A2zasdf";
ScopedFileStream stream(FX_CreateMemoryStream(data, 8, FALSE));
CPDF_SyntaxParser parser;
parser.InitParser(stream.get(), 0);
EXPECT_EQ("\x1a\x2a\xdf", parser.ReadHexString());
EXPECT_EQ(8, parser.SavePos());
}
{
// Just ending character.
uint8_t data[] = ">";
ScopedFileStream stream(FX_CreateMemoryStream(data, 1, FALSE));
CPDF_SyntaxParser parser;
parser.InitParser(stream.get(), 0);
EXPECT_EQ("", parser.ReadHexString());
EXPECT_EQ(1, parser.SavePos());
}
}
